<<

1966 AUGUST REFERENCE was termi- The observational part of this program have been The series of observations of many than normal A colon has been used to indicate greater exposure is For brighter comets the minimum tail dimensions given in the Coma diameters and that the results might be expedited. It is expected record the object concluded by unsuccessful efforts to These on plates of the maximum exposure practicable. publication of nated in November 1965 in order that will be published remaining several hundred positions in the very near future. omitted from plates have, however, generally been mention in the Notes. Roemer, E. 1965, Astron. J. 70, 397. uncertain to and be correspondingly difficult and uncertainty in the datum concerned. condensation such exposures the position of the nuclear tail structure. measurable determined by the necessity of recording measure. stars. On images of 12th-13th reference coma may be more or less obscured by the overexposed unless otherwise stated. In astrometric purposes head and general, longer exposures show more extensive therefore, she bears responsi- reference star positions; of the results given here. bility for the accuracy refer to the exposures taken for Notes to Table I 443 6 71, NUMBER VOLUME (Received 10 May 1966) {Table I appears on succeeding pages.) E. Lloyd Roemer* and Richard Elizabeth Flagstaff Station, Arizona U. S. Naval Observatory, and Satellites Minor Planets, of Comets, Observations R=Elizabeth Roemer. S = Marjorie K. Sin ton. L = Richard E. Lloyd, T = Maryanna Thomas, comets, 33 minor planets, 5 faint descriptive notes are presented for 38 Accurate positions and completed. series of Flagstaff observations has been for which astrometric reduction of the natural satellites, and Pluto, D = Charles A. Dean (1965). W=Daniel W. Weedman (1964), M = Brian G. Marsden (1960), Lo=Bernadette G. Londak (1963), given by Roemer (1965), here supplement those Astrophysics Data System © American Astronomical Society • Provided by the NASA

University * Present address : Lunar and Planetary Laboratory, the earlier one, the participation In this paper as in

to be used of all results and has decided the procedures in in resolving the all-too-frequent inconsistencies of Arizona, Tucson, Arizona, 85721. Summer student-trainees : final checking The senior author has carried out the with Lowell Observatory: to the following letters: Nonr-3342(00) Part-time assistants under contract of the work is of those who shared in critical phases Table I according indicated in the Obs/Meas column of of observation and of reduction. and the procedures the program, the equipment used, who also described and descriptive notes presented THE 1022 positions JOURNAL THE ASTRONOMICAL

PC

co TY996I R, R R, T R. L R, T R, L R. L R, R R, T R, T R, R R, L R, L R, L R. T R, T R, T R, R R, T R, T R, L R; R, L, S R, L R, L R, R R, T R, T R, T R, T R, T R. T R, R R, L R, R R, L R, L R, R R, T R, R R, L R, L R, L R, T R, T R, T R, T R, T R, T R, R M, M R, M R, M R, M R, T R, R R, M M, M R, M R, T R, T R, T R, T 3 3 3 3 3 3 10 15 15 10 10 10 10 30 40 30 32 60 30 30 30 60 30 90 90£ 60 65 15 10 10 90 90 90 90 10“ 10 10 12 10 10 15 60 92 10 30 30 30 30 30 30 30 30 120 100 108 120 120 110 100 Exp. Obs/Meas / -31 40 33.2 -33 44 57.3 -33 44 58.8 -28 20 08.4 -22 4038.6 -22 40 49.9 -24 45 16.7 -25 34 21.4 -25 34 30.4 -28 19 55.8 -31 40 27.5 -14 23 30.0 -18 13 29.0 -22 19 58.2 - 0 58 19.0 - 0 58 24.4 -18 14 02.4 +13 13 59.0 + 4 42 13.4 + 4 42 09.4 + 2 16 14.4 + 2 15 53.3 +51 30 59.0 +49 30 03.4 +49 29 24.9 +20 53 49.1 +20 53 46.8 +13 14 07.4 +50 57 08.9 +51 44 39.7 + 18 57 48.1 +18 58 03.9 +19 09 11.7 +1/ 36 57.5 +36 23 01.4 +50 57 32.5 +19 08 58.0 +33 17 49.5 +36 22 18.1 +48 48 23.1 +48 49 04.4 +32 30 24.0 +30 54 32.3 +36 37 50.3 +32 30 30.8 +25°1400 !9 +36 38 00.4 +41 41 18.4 +38 27 32.8 +41 33 45.1 +41 33 42.9 +38 27 37.3 +15 43 01.2 +41 41 19.4 +40 38 59.0 +25 13 59.2 +22 16 45.0 +15 43 25.6 +41 47 20.2 +22 16 28.5 +41 47 21.9 1950.0 14.53 11.60 28.42 28.78 27.96 05.24 05.58 13.61 18.76 57.46 58.60 28.33 52.68 06.52 43.41 32.86 24.54 24.36 59.99 41.37 20.36 56.81 29.07 23.64 02.52 02.14 37.60 46.06 39.07 38.76 12.21 06.29 41.06 45.95 45.48 12.81 45.77 45.59 47.31 26.08 26.23 33.73 07.02 07.58 58.49 51.26 50.17 49.26 59.35 59.88 03.71 1960 i =1961 I P/Encke 1960 e =1959 X Humason 1961 a =1961 VI P/Forbes 1959t =1960 IV P/Väisälä hm 1 30 1 30 1 31 1 31 0 54 0 54 9ll06?66 9 11 07.96 16 51 16 47 16 11 16 32 16 38 16 38 16 51 16 49 16 49 16 47 14 33 15 17 15 18 16 07 16 11 14 20 12 55 12 55 14 46 14 20 13 30 13 22 15 31 15 31 14 46 22 01 26.45 22 01 25.95 15 09 15 30 23 07 22 20 22 20 22 14 22.45 22 14 21.27 23 50 23 07 15 03 15 08 15 03 15 08 15 17 15 56 15 37 15 17 16 01 16 01 15 56 10 11 37.92 16 09 16 08 10 11 34.18 11 24 21.14 11 24 24.88 8.43343 5.22623 7.32257 8.40634 5.24428 7.22257 4.30494 4.32022 8.24583 6.10729 9.48991 9.18446 9.25233 9.37958 8.23752 6.07682 2.31876 16.39696 16.41987 17.07708 17.08054 13.51120 14.42616 19.30877 17.35723 19.35622 17.50147 17.31153 22.47567 20.15468 22.44796 23.37262 26.20040 26.22534 20.14636 17.20558 22.14170 17.18134 25.13807 16.26079 17.20081 18.21905 27.27317 30.33900 23.27659 30.32792 27.26001 1961 1961 1961 1960 UT 1960 1960 May Mar. 19.44685 Dec. July Mar. 23.29920 May Apr. June Oct. Nov. Jan. 16.50412 Feb. 13.44056 Dec. 26.50628 Sept, Jan. Apr. June Aug. Oct. 22.09946 Jan. 17.43153 Sept. 25.11522 Aug. 2.30630 July 13.24334 May 17.17242 June 23.23641 June 18.19205 Apr. 16.24763 R, T R, T R, R R, T R, T R, T R, L R, T R, T R, M R, M R, M R. R R, R R, R R, R R, T R, R R, R R, M R, M R, R R, R R, M R, M R, R R, R R, M R, R R, R R, M R, R R, R R, M R, M R, M R, M R, M R, R R, R R, R R, R R, R R, R R, R R, R R, R R, R R, R R, R R, R R, R R, R R, R R, R R, R R, T R, T 5 5 5 5 15 10 10 15 15 15 15 10 10 20 10 90 60 60 91 30 30 90 60 60 90 60 60 60 60 60 60 60 60 30 30 90 60 30 90 90 30 90 60 60 60 60 30f 30 30 30 30 30 34 40m 30 40 60 60 Exp. Obs/Meas E. LLOYD AND R. E. ROEMER planets, and satellites. of comets, minor Table I. Positions 1 51 08.1 1 46 51.9 1 43 28.6 1 43 26.1 1 51 03.6 1 46 55.9 , -19 53 03.2 -21 32 49.9 +11 03 05.0 +11 03 02.8 -23 00 59.2 -26 22 33.4 -26 22 46.9 -26 05 03.7 -26 04 49.2 +10 49 02.2 +10 48 58.0 + 14 26 49.6 + 14 26 58.7 +11 23 09.7 +11 23 20.9 +19 13 32.4 +23 53 27.3 +23 53 31.7 - 5 25 21.3 - 5 25 50.5 - 5 26 09.7 -14 56 16.4 -14 56 40.3 +24 13 34.1 +19 13 28.0 +24 13 30.6 +12 40 51.4 +12 40 37.0 +10 33 10.3 +10 32 54.2 + 3 27 55.4 + 3 27 44.6 +17 29 26.7 +17 29 22.5 —27°5808''3 +17 14 13.8 +28 39 02.3 +15 29 19.6 -27 58 25.3 -36 57 16.6 +44 04 42.2 +36 48 51.4 +36 48 30.1 +28 38 45.3 +25 18 56.8 +25 18 23.0 +15 29 14.4' +17 14 06.0 -36 57 28.7 +44 04 54.9 +41 07 49.4 +41 07 35.4 1950.0 11.40 11.87 12.86 09.85 49.49 51.51 57.31 56.13 44.06 46.48 48.06 17.55 18.66 13.16 12.78 27.22 00.56 58.64 28.32 48.15 47.45 1954/*= 1955 VI Baade 1959 ¿ = 1960 IV P/Väisälä h 1954 k =1956 I Haro-Chavira 8 41 55.00 8 41 56.10 8 48 24.14 8 27 8 48 26.58 8 51 46.76 8 51 46.31 8 27 8 45 8 38 53.45 8 57 57.33 8 57 57.39 8 38 22.45 8 37 11.16 8 37 11.49 8 38 53.19 8 45 9 34 9 34 8 38 22.29 5 43 40.93 543m41?08 5 15 17.06 5 15 14.98 10 35 14.61 11 28 17.78 11 00 58.85 10 38 12.20 11 21 28.56 11 21 26.42 11 01 01.55 10 25 10 25 10 25 11 08 11 08 21 18 37.86 20 53 08.93 20 55 46.76 20 55 49.30 21 18 34.50 16 45 52.72 20 53 06.36 16 45 55.24 17 05 46.46 17 00 45.68 17 00 47.15 15 57 15 57 17 05 46.08 15 54 15 52 15 54 15 52 16 26 16 25 16 07 16 07 1957 g = 1958 V P/Wolf-Harrington 1.30103 6.33479 6.38881 2.30101 2.34741 4.34374 4.41022 9.50977 9.52639 9.48490 1.24583 5.40637 10.29450 12.39693 17.27116 16.19699 19.27564 19.28464 13.49631 13.50530 10.44834 10.47189 18.15139 14.47624 14.48940 12.08326 12.13036 25.52992 18.09737 24.21443 24.22863 21.48941 21.47557 30.30860 30.35500 21.08220 21.12721 15.35793 13.45744 16.50961 20.18929 21.29549 20.13458 27.26472 27.29035 26.39046 20.48363 1959 1959 1960 1958 1957 UT 1958 1957 Astrophysics Data System © American Astronomical Society • Provided by the NASA 1957

Nov. 25.50706 Dec. Mar. Mar. 16.18522 Apr. Feb. 17.26561 Feb. Oct. Nov. Dec. Jan. Sept. Jan. Dec. Nov. May 15.27898 Feb. 16.46460 Apr. 13.38403 Sept. 1.22032 July 21.26640 Nov. 26.34337 June 5.37382 444 Sept. 20.45177

pc

CO TY996I 445 R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L W, R R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, T R; T, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, T R, L R, L R, R R, L R, T R, L R, T R, L R, L R, T R, L R, L R, L R, T R. L m 5 5 5 5 1 7 1 5 5 5 1 1 1 5 5 1 1 6 5 1 2 2 1 1 1 10 10 10 60 2 10 2 60 3 30 3 10 30 3* 10 3 3 3 3 10 10 4 3 3 3 3 3 3 10 3 10 10 36 10 10 10 10 30 10 33 31 22 Exp. Obs/Meas 1 1331.2 1 13 33.7 3 1131.6 + 6 59 31.4 + 6 59 39.3 / - 0 3150.2 + 2 27 52.2 - 0 32 01.0 + 2 27 43.4 + 0 37 16.5 + 0 37 30.0 - 1 37 49.5 - 1 43 05.1 - 1 37 54.0 - 1 01 47.0 - 1 43 03.1 - 1 10 58.3 - 1 10 48.9 - 1 01 52.4 - 7 44 48.8 - 4 31 46.9 - 4 31 36.8 -12 57 55.1 - 7 45 01.9 -12 57 59.3 -16 56 50.6 -16 56 47.2 -19 00 51.0 -18 42 57.1 -18 42 56.1 -29 32 37.3 -27 47 48.6 -27 47 42.7 -19 0051.1 -38 14 55.8 -38 13 56.1 -29 32 45.5 -18 34 03.2 -41 03 30.2 -41 03 18.2 -38 15 05.3 -36 16 44.1 - 8 55 32.8 -32 42 07.3 -32 42 11.8 -36 16 42.6 - 6 48 47.6 - 8 55 27.3 + + + 3 11 34.3 + + 6 39 16.6 + 7 20 43.9 + 8 57 20.9 + 7 20 44.8 + 9 26 05.3 + 8 57 28.0 +12 35 10.6 +16 29 12.3 +12 35 12.6 +20 35 23.3 +16 29 21.9 +20 36 01.5 +26 25 41.9 +22 30 02.5 +22 29 56.1 +26 57 05.7 +26 25 45.4 +26°5721!7 1950.0 10.21 21.03 20.34 09.07 53.84 38.37 36.59 55.28 30.56 16.96 16.26 28.38 31.05 27.91 16.70 45.62 40.85 40.90 45.57 11.16 17.12 02.56 02.35 53.54 20.75 20.16 35.57 34.36 54.06 08.75 09.00 34.68 34.54 36.34 50.45 40.22 39.63 51.24 14.40 28.72 29.77 29.61 14.57 30.86 46.28 37.41 46.77 01.06 15.75 01.25 28.39 29.33 33.45 11.25 11.64 28.65 11.77 33.29 04.71 58.35 58.33 08.78 05.16 36.01 47.60 47.22 38®01 1961 «=1962 VIII Humason 10 20 10 52 10 20 10 52 0 06 11 06 11 06 0 02 11 15 11 15 0 02 11 24 11 23 11 24 0 17 0 13 0 13 10 42 10 42 11 23 0M7« 10 51 10 51 10 42 10 42 11 39 11 06 12 12 11 39 11 06 12 41 12 34 12 34 12 12 11 54 11 54 12 39 12 41 12 18 11 57 11 57 12 18 12 18 12 28 12 28 18 46 19 59 19 59 18 46 23 02 23 02 23 51 23 13 23 51 23 59 23 59 23 22 23 20 23 22 23 26 23 17 23 17 23 41 23 41 23 50 23 26 23 50 5.52591 7.44457 7.45360 9.32823 9.33650 3.23888 9.55462 3.21458 4.44515 9.45530 12.48427 24.44692 30.21383 4.12655 11.48889 2.21242 31.42664 31.47942 2.19853 14.19838 3.39205 10.29480 11.21861 14.16852 3.38406 10.27050 16.54899 17.17705 22.17759 29.20125 22.17273 29.17070 24.17780 29.16583 19.15764 1965 21.10581 10.46935 31.38279 1964 29.45439 30.41043 12.15320 12.20250 12.29176 15.16388 26.18883 15.15902 26.18466 1963 UT 1962 1961 Apr. 30.16661 Feb. 24.41707 Jan. 12.42663 Dec. 11.42848 Mar. May Nov. 5.47383 Dec. 16.49552 Apr. June 11.16861 Feb. Nov. 15.52534 Jan. 9.54698 May 24.17190 June 17.17080 Oct. 21.09400 Sept. 19.15272 Aug. 4.44237 May 10.46449 July 9.45252 June 30.40626 Dec. Feb. 4.08974 Jan. 27.08940 Nov. Oct. 12.26676 R, T R, T R, T R, T R, T R, T R, T Table I {continued) R. T R, R R, R R, R R, R R, R R, R R, L R, L R, R R, L R, L R, L R, R R, L R, L R, R R, L R, L R, L R, L R, T R, T R, T R, R R, R R, R R; R, L R, L R, L R, L R L R; R, L R, L R, L R, L R, R R, L R, L R, R R, R R, R R, L R, R R, T R, R R, R f R, L R, R R, L R, L R, R R, L R, L 90 90| 91 90 90 60 60 90 70 60 60 60 60 52 60 90 90 60 60 90 10 10 29 10 35 32 10 30 22 30 30 90 120 120 122 11 120 120 120 110 11“ 30 60 61 90 31 120 120 120 120 120 120 120 Exp. Obs/Meas +29 01 18.7 +30 34 59.1 +29 0123.4 +30 35 04.1 +30 54 36.0 +31 14 33.9 +31 14 24.9 +30 54 40.3 -13 40 48.1 + 0 13 21.5 + 5 34 04.6 + 5 34 32.9 -12 38 59.8 -13 40 46.8 + 1 29 07.0 + 0 13 47.1 + 2 37 06.7 + 3 04 26.8 + 3 04 59.3 + 7 30 56.7 + 7 31 10.6 -11 09 00.2 -12 38 50.8 + 9 57 31.4 + 4 00 58.2 + 4 00 25.9 + 1 28 40.0 - 7 50 34.9 - 7 50 35.4 - 8 04 49.5 -11 08 47.3 - 0 28 34.4 - 3 17 28.4 - 0 29 10.6 - 3 1738.1 - 2 54 34.0 - 2 54 40.5 - 0 19 55.2 - 0 20 04.6 + 3 21 16.4 + 1 53 27.2 -15 04 14.6 -12 39 52.5 - 6 21 12.1 + 3 21 16.4 + 1 53 23.9 +18 42 25.5 +18 48 04.7 +18 42 39.7 +18 23 43.6 +18 47 53.4 +16 44 03.9 +17 03 32.6 +17 04 08.6 -25 38 30.7 -19 41 23.3 -19 40 46.0 -30 28 17.1 -25 38 47.4 -14 30 12.1 —30°28'21?5 1950.0 E S D S A T E L L I T A N MINOR PLANETS, COMETS, 11.28 19.86 19.78 16.46 06.53 15.82 12.25 11.96 51.02 21.81 13.62 10.40 42.83 39.16 40.30 41.46 58.56 57.14 06.72 37.76 09.71 28.51 38.73 15.96 01.18 28.25 41.70 40.17 00.30 43.80 01.08 25.86 42.03 1961 c =1962 VII P/Faye 1961 «=1962 VIII Humason 1961 a =1961 VI P/Forbes 2 1961 6=1962 VI P/Tempel 1 02 36.81 1 02 34.17 0 35 05.69 0 52 35.79 0 35 06.49 0 57 13.63 0 52 36.90 0 57 14.66 9 38 9 25 9 25 9 23 9 23 8 51 57.46 9 41 9 38 9 50 04.99 9 50 09.31 2 48 1 56 2 48 1 56 3 06 3 06 3 56 3 40 3 11 3 56 3 40 3 11 hm 10 02 10 02 10 08 45.58 10 08 48.25 19 37 19 37 19 07 19 45 19 45 19 34 19 02 19 02 19 07 11 13 11.81 11 23 43.98 11 13 12.22 20 02 11 29 15.63 11 23 47.34 21 14 23 17 11 42 12.86 11 42 07.77 11 44 49.17 18 45 20.93 184519?56 21 11 31.05 21 11 24.94 20 02 11.55 20 02 15.21 22 01 49.41 6.37561 6.41722 5.48905 3.13858 2.16466 8.19667 5.32032 1.45034 1.43922 4.45800 4.46633 9.45758 15.32456 11.32399 15.30859 11.30872 29.19496 29.20469 19.27104 16.27455 24.35746 24.27951 27.44579 26.42488 26.49502 18.36510 21.36392 20.29984 1961 21.32039 15.29124 25.42578 15.26506 15.17825 1963 1962 22.38285 11.14420 22.28589 11.16706 12.12301 1961 1962 UT 1961 1961 Astrophysics Data System © American Astronomical Society • Provided by the NASA

Sept. Mar. 19.18286 Apr. 16.18498 Feb. 20.35465 Nov. 5.42134 Jan. 27.35483 Sept. 26.47784 Nov. 3.09413 Oct. 2.11952 Sept. 8.14667 Dec. 20.22553 Nov. 21.31392 July 5.27310 Oct. 21.29574 Sept. 25.40113 May Aug. Mar. 13.51098 Apr. 3.48873 July May 15.19818 Mar. 19.21623 Apr. 7.27284 Nov. 11.09663 Dec. 5.09740 Oct. 12.09766 Sept. 11.15664

a;

00 TY996I 1966AJ 71. . 443R 446 June 1.17877 Oct. 31.46169 Nov. 1.46166 Oct. Nov. 3.51582 Dec. Jan. 28.10966 Nov. 29.09965 Feb. 3.11929 Jan. 30.15057 Dec. 2.09264 Apr. 5.14075 July 15.35990 Apr. Feb. 3.18040 Mar. 4.12867 June 17.41072 Nov. 7.07457 Oct. 9.15332 Sept. 11.34096 Aug. 13.44258 July 1.22534 Mar. May 26.20485 Dec.^17.14758 May 24.43369 May 9.30551 1965 © American Astronomical Society • Provided by theNASA Astrophysics Data System ~17.16355 1961 UT 1961 1962 1962 25.50977 15.51161 25.51776 15.51855 1963 1962 18.51984 18.51428 29.15312 29.13632 29.09049 11.44211 11.43863 31.09251 26.09891 30.19779 24.21994 29.43910 29.41479 24.21881 13.45161 11.34582 15.36892 17.44197 10.35268 1.20759 3.52346 5.14878 5.15712 9.16582 3.14377 3.19499 3.18236 3.23249 3.15736 7.08603 hm 1962 «=1963VIP/Ashbrook-Jackson 1962 a=1962IIP/Harrington-Abell 101628!64 10 5014.28 10 5006.62 10 1628.60 11 24 11 13 11 21 11 21 11 24 23 35 23 39 11 01 11 13 23 38 23 35 10 27 11 01 23 38 10 27 20 4011.83 22 0709.05 21 5206.41 20 4719.82 23 22 22 48 22 48 22 47 22 47 23 05 23 27 23 4004.03 23 22 23 05 23 27 23 29 23 29 23 11 23 11 22 50 22 50 22 44 15 4001.18 15 0243.76 15 2758.46 15 4053.75 3 4802.31 9 2613.31 8 1308.46 6 3450.29 6 1335.35 0 0133.51 6 3448.54 6 1334.85 6 1302.72 6 1302.74 7 2738.59 7 2732.40 1 4932.59 1961 e=1962VIIIHumason 1961 Ä=1962IP/Perrine 1961 /=1961VIIISeki 31.22 31.71 54.24 41.00 53.76 22.04 22.39 40.16 01.71 46.67 13.02 47.77 01.50 10.63 11.90 31.94 30.87 36.54 36.30 25.28 57.92 25.59 06.33 06.62 57.66 04.23 02.45 24.87 23.04 07.53 13.56 13.36 1950.0 + 63041.5 + 8°00'29?2 + 63058.2 + 80031.2 +14 0153.6 +14 0154.8 +13 4943.9 +12 3936.5 +12 3944.1 +13 4942.4 + 75925.7 + 75859.5 -12 3610.4 -12 3445.5 -25 4313.1 -28 4954.3 -25 4301.6 -20 4045.4 -20 4107.3 + 02543.2 - 15510.0 - 20113.2 +10 3537.8 + 54353.4 + 44050.3 +22 2837.8 +20 5532.2 + 61215.1 + 61112.8 + 45226.4 +13 5256.3 - 00849.2 +21 2449.3 +20 5508.5 +14 4858.2 +14 4833.9 + 45322.2 -10 5917.6 -10 5922.3 -13 0532.2 -13 5848.2 -13 5848.9 -14 5947.3 -14 5948.8 -16 5932.7 -31 5246.1 -33 4003.8 -33 5157.5 - 71922.8 -13 0531.4 -16 5943.2 -18 5341.1 -19 2643.2 -33 5157.9 - 03740.3 - 71929.1 -18 5333.1 - 03728.5 E. ROEMERANDR.LLOYD m Exp. Obs/Meas 106 130 120 100 120 34 90 90 23 30 60 60 10 90 90 90 10 30 60 30* 30 44 80 60 60* 30* 60 60 60 60 60 30 30 50 10 20 20 10 10 10 10 15 1 1 5 5 5 5 5 5 * * * h k * \ R, R R, L R, R R, L R, R R, R R, T R, R R, R R, R R, R R, R R, T R, R R, R R, T R, T R, T R, T R, R R, R R, R R, R Lo. L R, L R, L R; R,L,S R, T R, R R, R R, T R, R R, R R, L R, L R, T Lo, L Lo, L R, R R, R Lo, L Lo; W,L R. L R, L R, R R, R R, R R. T R, L R, L R, L R ;R,L R, R R, L R, L R. L R, L R, L Table I(continued) Jan. 16.15091 Feb. 5.10161 Sept. 11.40730 Jan. 31.26207 Oct. 11.36220 Nov. 4.37874 Feb. 25.23856 Dec. 10.34518 July May Oct. 21.13706 Sept. 28.27708 Jan. 7.23318 Sept. 23.44698 Aug. 27.41677 Oct. 12.44176 Nov. 21.08824 Feb. Dec. 14.35428 Nov. 15.30381 Dec. 21.09843 Apr. Jan. Feb. 24.10001 Mar. 1.10246 May 16.44383 1964 1965 UT 1962 31.36277 16.17383 1964 1963 11.42748 11.46842 1963 29.38182 11.42071 31.27550 31.32203 21.18845 26.30413 21.14414 28.16185 28.10942 26.36073 20.50100 20.49324 15.35554 12.49279 25.09737 24.10348 21.11137 25.10123 12.16834 21.10859 15.51911 15.50175 16.45998 5.12556 4.42096 8.37652 8.42096 1.33228 9.24768 6.26337 6.20781 9.31817 9.52279 9.53807 7.55098 7.51974 1.10524 1962 «=1963VIP/Ashbrook-Jackson hm 20 44 20 40 20 50 20 52 20 47 20 33 20 47 20 33 20 56 20 24 20 12 21 39 20 30 20 30 20 24 20 56 13 55 13 58 13 57 13 57 13 54 13 54 13 58 13 55 00219?3 0 3233.86 0 0221.25 6 3748.66 6 3744.61 0 3236.12 6 0422.86 6 0909.99 6 0913.28 6 5421.72 7 1105.32 7 0349.46 7 0351.80 5 2651.45 4 5824.19 5 3421.32 5 3957.99 5 3747.14 5 3746.17 4 5458.05 4 5457.29 4 5725.91 4 5727.72 4 5819.64 5 1344.19 5 3958.18 5 4601.29 5 3419.69 2 13 2 14 2 14 2 13 2 09 2 09 0 44 0 44 1 48 1 48 1962 /=1963IIP/Whipple 40.92 27.49 30.08 28.79 04.80 23.55 1963 a=1963IIkeya 30.77 21.50 28.74 49.46 46.11 41.76 26.35 28.62 19.45 31.48 30.86 16.72 32.42 38.40 55.29 34.60 34.33 21.88 38.11 55.16 22.19 40.81 41.00 32.17 37.89 36.76 09.45 09.55 1950.0 + SWUM + 90528.4 + 90510.6 + 50727.3 +37 3051.3 +34 4522.9 +34 4515.2 +39 4543.5 +36 0434.0 +36 0420.7 +37 3335.6 +39 0926.6 +39 0948.0 - 64603.3 - 72130.8 - 40616.5 - 52451.9 - 40657.5 -11 1844.0 - 45901.5 - 40659.5 +14 0353.4 +15 3055.6 -10 0500.2 - 45912.5 + 94341.3 +12 3422.1 -11 2608.5 -11 2614.6 -11 3007.1 -11 1850.1 + 95717.9 + 81607.1 +11 2221.1 +11 2238.0 +12 3437.2 - 94951.6 -11 3003.3 + 95731.4 + 82822.8 + 82814.6 + 82419.3 + 94328.5 +14 0330.6 -29 1852.1 -24 3815.0 -34 5305.3 -31 5728.6 -28 3502.7 -28 3424.0 -21 1935.0 -24 3731.5 -34 5246.2 -31 5759.7 -29 1912.5 +17 4152.8 + 70032.6 +17 4201.5 + 70028.6 -11 2043.5 -21 1851.6 -11 2023.6 m Exp. Obs/Meas 128 120 120 120 120 120 120 120 115 103 32 30 30 90 31 90 90 80 90 60 60 60 60 60 90 91 60 60 44 60 60 60 61 90 60 60 61 61 60 60 90 40 61 57 20 20 20 20 5 6* 5 6 1 1 2* 1 * * * * Î * R, L R, R R, L R, R R, R R L R, L R, R R, R R, L R, L R, R R, L R, R R, R R, L R, R R, R R, L R, L R, L R, L R, R R, R Lo, L R, R R, L R, L R, L f R, R R; L,S R, R R, R R, R R, L R, L R, R R, R R, R R, R R, R R, R R, L R, L R, R R, R R, R R, R R, R R, R R, R R, R R, L R, L R, R R, L R, L R, R R, L R, L R, L R, L 447 R, R R, R R, R R, R R, R R, R Lo, R R, R Lo, R R, R R, R R, R R. R R, R R, R R, R R, R R, L R, R R, R R, L R, R R, L R, R R, L R, L R, L R, R Lo, R R, L R, L R, R R, L Lo, R Lo, R R, L R, L R, L R, L R, L R, L R, L R. L R, L R, L R, L R, L R, L R. R R, R R, L R, R R, R R, R R. R R, L R, L Lo, L 5 5 5 5 5 5 3 3 90 90 96 70 70 80 70 64 65 80 90 90 90 90 90 90 90 10 10 10 10 10 10 10 10 50 10 10 30 50 91 90 30 31 30* 90 30 30“ 100 101 110 100 100 120 100 120 120 120 120 121 Exp. Obs/Meas + 0 00 46.0 + 0 0050.9 + 4 06 26.7 + 6 13 13.6 + 4 07 02.8 -24 05 56.4 -22 40 31.8 -18 15 25.3 -11 1442.3 + 6 21 55.0 + 6 21 21.6 + 6 13 43.0 -18 1421.3 -19 03 33.1 -15 54 55.3 -22 27 30.3 -25 32 19.5 -26 41 46.4 -27 07 19.1 -28 16 47.7 -23 10 02.3 -23 00 38.5 -22 26 47.0 -25 32 54.8 -26 54 49.8 -27 07 40.4 -28 16 46.3 -15 32 33.1 -17 57 30.8 -17 57 29.5 -17 02 56.9 -15 39 17.0 +21 12 27.2 +17 44 31.0 +17 20 56.5 +26 27 31.4 +23 32 08.2 +21 12 35.8 +34 40 10.2 +33 08 06.2 +29 55 46.6 +29 55 44.3 +26 27 32.3 +23 32 16.4 +34 50 39.0 +34 40 18.0 +33 0756.2 +34 04 35.4 +34 50 39.4 +31°21'02 ?5 +31 21 09.0 +31 35 24.7 +31 35 27.8 +32 43 28.3 +32 43 30.9 +33 22 21.6 +33 22 27.7 +34 04 34.2 1950.0 1963 h P/Encke 15.75 12.57 18.96 08.66 05.38 59.67 20.96 53.09 14.09 12.87 49.82 45.92 42.69 40.46 1963 g P/Arend-Rigaux 1963/= 1963 VII P/d’Arrest hm 0 19 23.89 7 42 51.92 7 42 54.08 7 06 49.93 7 06 52.10 8 30 34.03 8 35 30.45 6 25 03.12 6 25 03.44 6 28 51.56 6 12 6 12 6 03 14.76 6 03 14.76 5 44 46.28 6 09 41.86 6 35 36.93 6 35 37.19 6 28 53.66 4 55 35.20 5 24 47.81 5 24 48.84 5 44 49.34 6 09 41.16 45006?42 4 50 08.92 4 55 36.22 22 51 46.82 19 30 21.85 23 19 20.60 23 19 15.00 22 51 45.19 17 38 37.91 17 48 33.30 23 41 20.83 23 43 00.74 23 42 54.28 23 41 26.33 12 37 15.96 21 41 42.01 12 52 24.55 13 10 23.01 13 10 20.70 22 57 44.68 23 27 33.80 23 05 22 23 22 53 13 13 17.91 23 05 22 48 22 48 22 40 22 38 22 37 22 37 22 23 22 52 1963 d = 1963 VIII P/Kearns-Kwee 1.19079 3.18281 4.18515 4.45012 4.21657 9.18270 9.18756 3.15903 6.31552 6.34329 4.21171 9.38248 9.39150 16.16289 12.37475 16.10751 12.11608 12.30101 25.38095 25.45248 18.12211 18.20891 17.10105 18.10518 24.28446 24.37381 21.21373 23,19838 25.25178 25.31359 10.16494 15.54521 24.28450 11.45776 12.45309 11.44873 27.36746 24.33376 24.36571 24.46131 27.35774 1964 1963 1963 UT 1963 1965 1964 1963 Dec. 16.09623 Oct. 12.30009 Sept. 24.20529 Dec. 14.09909 Feb. 4.11553 Aug. 24.30576 Sept. 12.23295 Dec. Oct. 9.11617 Nov. 9.10124 Jan. 6.10059 Oct. May Mar. 4.37338 Apr. 1.37698 Mar. Dec. 15.49660 June Feb. Apr. 10.14098 Jan. 12.52733 Oct. Nov. Sept. 12.44337 Jan. Aug. 24.43839 Table I {continued) R, R R, L R, L R, R R, R R; L, Lo R; L, Lo R, L R, R R, R R, L R, L R, L R, R R, L R, L R, L R, L R, L R, L R, L R, L R, L R, R R, L R, L R, L R, L R, L R, L Lo. L R, L R, L R, L Lo, L Lo. L Lo, L R, R R, R R, L R, L R.L R, L R, L R. L R. R R, R R, R R. R R. L R, L R, R R; S, Lo R, Lo R, L R, L R, L R, L R, L R, S R, L Lo. L Lo, Lo Lo; R, Lo h * m i 1 1 1 1 1 2 4 3 3 3 1 1 1 1 1 1 1 u 1 3 3 3 5 5 5 3* 5 5 3* 3 3 3 18 90 60 60 60 90 90 30 30* 26 30 30 30 60 60 30 30 30 30 30 60 30 30 30 14 10 30 30 100 Exp. Obs/Meas - 9 51 29.7 -13 03 23.0 -12 36 09.2 -13 54 36.3 -16 13 55.8 -16 14 03.2 -12 09 46.3 -10 12 53.6 -10 12 50.5 - 9 32 46.1 - 9 33 01.7 -19 42 23.0 -13 55 12.9 - 0 27 56.1 - 2 07 10.9 -14 46 27.1 -14 46 35.9 -10 41 28.3 - 9 33 01.9 -10 11 41.0 -10 11 46.6 -19 42 39.8 -14 37 39.0 - 0 27 17.8 -18 06 26.5 -18 06 39.1 -20 55 33.4 -20 50 05.6 -20 49 58.8 -15 18 13.7 -15 18 27.9 +35 26 13.1 +35 25 54.4 + 4 05 41.3 + 4 05 26.3 +56 29 02.5 +55 07 53.9 +46 22 59.1 +46 22 47.7 +48 53 08.7 +55 07 24.2 +56 29 00.6 +55 07 59.8 - 2 39 21.3 +48 53 21.9 +49 03 57.8 +49 04 23.7 +51 22 32.9 +51 23 17.0 +55 06 38.4 + 3 43 45.7 + 3 44 10.6 +21 37 24.6 +21 37 21.6 +13 07 06.4 +21 34 50.9 +22 00 41.9 +22 18 43.3 +22 18 44.2 +13 07 20.6 +21 34 45.8 +21 34 48.6 +19 34 49.6 1950.0 SATELLITES AND MINOR PLANETS, COMETS, 19.61 16.74 11.25 18.61 17.43 16.67 08.42 08.44 47.99 11.40 18.05 54.87 23.02 28.86 28.99 57.47 44.52 52.70 17.28 55.60 02.60 01.74 21.79 04.36 03.98 28.05 25.30 25.32 02.58 32.11 33.41 20.61 36.38 36.41 07.35 56.00 52.94 03.92 50.08 49.89 32.10 31.33 06.28 09.13 23.49 47.70 45.30 33.62 1963 a =1963 I Ikeya 1963 b = 1963 III Alcock 1963 c =1963 IV P/Johnson hm 0 49 11.89 0 28 0 28 0 01 0 09 0 24 0 01 0 21 0 21 0 09 0 34 0 34 0 17 0 11 0 11 0 39 0 39 0 26 25.90 02626?34 12 13 13 41 12 20 12 13 12 13 12 13 19 33 23 21 13 41 12 28 12 28 12 22 12 22 22 16 22 26 22 35 23 21 19 33 17 38 17 38 16 14 16 14 14 36 14 36 23 53 23 08 19 32 19 32 19 16 18 27 18 27 19 16 19 08 53.95 19 27 33.66 19 27 31.65 22 22 06.70 22 22 08.04 20 28 03.90 20 28 01.92 23 54 07.64 23 54 06.85 23 41 35.26 23 27 31.17 23 27 30.09 23 54 08.76 9.22693 1.39478 1.44495 4.29158 4.29575 9.16707 9.19346 18.18712 18.24406 15.42240 11.28714 25.27396 13.17906 16.16855 16.17272 15.17461 15.17738 16.22065 25.22882 29.46499 27.39860 25.31406 23.45178 27.42290 16.36656 16.41946 31.41333 31.43625 21.19152 23.18485 23.24449 23.24796 21.17902 24.44954 12.24020 12.19037 24.45648 20.48176 21.46575 14.35889 14.36444 12.22978 16.42360 16.42916 21.50395 16.41596 21.39429 26.31634 26.32207 1964 30.44983 30.44496 UT 1963 1963 1963 Astrophysics Data System © American Astronomical Society • Provided by the NASA

Dec. 14.17895 Jan. 9.10672 Nov. 9.17971 May 4.45807 Oct. 9.22589 Aug. 25.29045 Sept. 11.26284 Apr. 24.47280 June 21.43838 July 15.39948 May July 13.17455 Mar. 20.46232 June 16.21648 Apr. Sept. Oct. Aug. May July June

pc

CO TY996I R, L R. L R, L R, L R. L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, R R L R, L R L R. R R, L R, R R, R R. R R, R R, R R, R R, L R, L R, R R. R R, L R. L R, L R, L R, L f f 5 R, L 5 R. L 2 R, L 2 R, L 2 R, R 2 R, R 2 R, R 2\ R, L 2 R, R 2 R, L 2 R, L 2 R, R 1 2 1 1 5 1 6 2\ 3 3 16 R, L 10 R, L 60 R, L 30 R, L 38 R, L 60 R, L 90 R, L 10 10 12 10 10 10 10 10 10 10 60 30 30 30£ 60 60 40 40 30 30 92 30 60 16 14 120 120 110 +55 11 55.6 +50 11 53.4 +43 03 13.3 +50 12 12.8 +55 11 36.2 +57 48 34.7 - 7 51 08.4 +43 03 03.2 +12 39 49.0 +35 17 28.9 - 7 50 44.5 + 5 35 48.3 + 5 36 19.0 +12 39 34.8 +35 17 06.4 + 1 43 47.4 + 1 44 47.5 +27 08 28.4 +27 08 35.6 +14 01 31.9 +13 50 11.2 +30 53 31.0 +14 01 31.7 +13 50 11.3 +13 38 08.1 +13 38 05.6 +35 17 15.5 +35 17 11.0 +30 53 20.8 +22 46 32.7 +22 46 23.3 +16 26 36.1 +16 26 27.8 +12 42 58.1 +29 49 33.5 +33 48 01.9 +33 48 17.4 +12 42 52.6 +24 20 06.9 +24 20 50.1 +25 11 09.0 +29 50 02.8 +18 52 28.1 +19 04 58.5 +18 15 06.4 +16 03 23.0 + 6 40 42.7 -18 41 52.5 -18 41 50.4 +16 03 26.3 +15 09 31.6 +15 35 08.4 + 6 40 21.4 +15 34 58.0 +15 09 46.1 +23 46 18.9 +23 33 31.9 1964 / Ikeya 1964 h Everhart 16.57 16.99 18.84 15.99 02.23 03.94 27.02 22.90 21.80 31.57 26.78 31.23 43.10 40.15 44.26 53.20 57.19 39.25 06.69 29.90 06.39 32.02 48.30 35.65 30.60 56.87 57.96 46.61 1964 g P/Wolf-Harrington 1964 c Tomita-Gerber-Honda hm0 0 05 04.09 1 59 57.79 1 59 56.54 0 03 0 22 0 03 0 08 0 08 0 50 0 50 3 15 25.80 4 52 09.84 5 52 33.33 0 37 0 37 0 22 3 15 24.30 4 52 05.81 5 52 37.11 0 17 0 32 0 14 0 32 0 14 100 R, L 7 30 54.88 +15 46 12.9 5 45 5 45 4 18 4 23 4 23 4 18 4 20 90“ R, L 80400?20 +1443'24!1 3 12 03.35 4 20 3 04 42.16 18 41 36.19 17 27 50.73 18 41 34.29 15 36 53.68 15 36 54.45 15 49 43.34 15 49 43.79 17 27 47.79 15 19 03.74 15 19 04.17 15 31 06.32 15 31 07.68 16 35 55.61 16 35 56.16 20 17 32.30 22 05 51.43 22 06 01.50 20 17 37.92 23 49 23 45 23 48 14 34 14 34 1964 d P/Honda-Mrkos-Pajdu§áková 1.15562 1.13115 8.19654 6.37992 5.46745 5.47174 16.18796 16.20394 27.11267 24.15956 26.08182 26.10992 20.16042 29.14036 29.10856 20.16979 29.13480 25.27559 26.15992 27.19346 25.18370 23.14600 23.16961 14.40136 27.20191 10.40426 30.21535 30.23199 30.26394 14.38067 15.37925 1965 10.44836 14.46144 17.43427 17.46066 1964 15.44036 14.43921 1965 31.12328 31.12744 26.42405 Exp. Obs/Meas a 1950.0 8 UT 1964 1964 1964 1965 Dec. 26.08353 Feb. 25.13231 Nov. 26.07071 Jan. 24.11512 Oct. 27.08906 Sept. 29.10289 Oct. 27.19080 Nov. 25.26587 Dec. 26.14464 Aug. 8.19168 Sept. 30.19312 Apr. Jan. 27.18443 Feb. 25.17398 Aug. 6.33617 July 10.34801 June 11.38422 Aug. June 14.44317 July 10.43968 Jan. 11.35793 Table I (continued) R, L R, L R, L R, L R, R R, R R, R R, R R, L R, L R, L R, R R, L R, R R, R R, R R, R R, R R, R R, R R, R R, L R, R R, R R, R R, R R, L R, R R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L W, W W, W R; W, L R, L W, W W, W R, L R, R R, R R, R R, R R, R R, L R, L R, L R, L R, L W, W R, L R, R 1 1 1 1 1 1 1 1 1 1 5 5 5 5 5 5 5 5 5 70 60 52 90 60 78 70 26 86 52 52 44 30 30 92 10 10 40 30 30 10 10 10 10 10 10 70 76 70 51 20 40 30 50 45“ 120i 120 120* 120 110 E. LLOYD AND R. E. ROEMER -25 36 53.2 -29 10 34.3 -29 10 36.4 - 3 50 14.6 -15 17 44.8 -16 16 25.8 -14 57 03.4 -17 06 27.3 -21 48 39.9 -25 36 04.9 +12 05 30.8 +13 45 10.3 +16 15 27.5 +17 41 35.2 +19 13 30.9 +22 0134.5 +11 17 19.8 +11 14 46.9 +11 36 35.4 -12 14 40.1 -15 12 48.5 -15 43 02.8 -16 16 09.6 -20 10 34.7 +13 45 30.1 +16 14 59.8 +17 41 21.0 +19 13 53.5 +22 01 29.4 - 9 06 55.8 + 0 25 21.0 -12 01 31.4 -12 01 25.7 -12 34 48.5 - 9 54 58.5 -12 34 45.3 - 9 54 46.4 - 6 47 41.3 - 6 47 52.5 - 5 44 46.7 - 5 44 46.0 - 5 47 05.2 - 5 49 56.5 - 5 47 06.3 - 7 52 41.4 - 7 52 35.6 -34 08 02.9 -16 22 43.8 -19 02 23.4 -16 50 49.1 -16 50 44.7 -12 44 18.0 —34°08'27 ?0 -32 52 23.7 -18 53 36.5 -18 53 42.3 -19 04 57.9 -12 44 12.4 Exp. Obs/Meas 1950.0 Ô 1963 i P/Kopff 1963 h P/Encke 19.22 14.16 17.56 17.16 14.01 29.60 02.97 10.68 05.27 28.70 51.32 59.05 21.27 31.84 33.78 03.87 02.00 45.83 48.67 31.30 37.45 37.76 07.04 05.87 00.26 12.89 11.67 57.53 47.55 30.27 17.06 16.97 39.69 03.29 02.38 44.43 44.07 22.91 40.41 22.49 39.76 54.93 15.87 29.39 10.75 16.44 13.24 31.05 59.49 01.00 33.93 35.44 04.60 1964 b P/Pons-Winnecke 1964 c Tomita-Gerber-Honda 1 34 1 34 9 14 9 27 1 55 2 26 2 26 2 51 9 49 9 49 2 10 2 41 2 51 3 01 0 11 21.35 2 41 3 01 0 46 03.36 2 16 0 48 2 13 2 11 10 13 10 12 18 23 19 58 21 51 23 32 20 02 20 25 21 47 23 14 23 17 23 14 23 37 23 37 23 17 23 47 23 47 23 25 23 24 23 25 23 22 23 24 18 43 22 42 22 42 20.1 14 49 12.80 -12 29 18 40 15 55 17 12 17 12 20 02 21 23 21 24 17 18 21.48 17 37 39.19 20 02 miS^lS^SS 4.42834 8.39649 5.43308 3.42910 4.39018 4.39852 9.40929 3.42424 8.42898 12.48439 16.16486 11.37015 14.45914 15.45251 15.45633 13.44840 14.45671 11.43943 13.44285 15.41576 12.48257 15.50087 21.49788 29.30080 27.15746 31.13985 30.31496 30.28858 10.46250 15.46059 13.53463 1964 30.18338 1964 1965 UT Astrophysics Data System © American Astronomical Society • Provided by the NASA 1964 1963 1964

Dec. 4.36624 Oct. 11.49345 July 16.16139 Oct. 8.30675 June 11.43457 Sept. 4.35560 Aug. 6.44034 June 9.43984 July 16.43186 Mar. 14.50229 Apr. 11.48538 Nov. 26.11029 Feb. 19.51288 Sept. 29.27024 Oct. 27.13385 Aug. 5.40183 May 8.41996 Jan. 3.10892 Mar. 14.45785 Apr. 10.45417 June 9.39610 July 2.35830 Feb. 13.50164 Dec. 18.52738 Jan. 15.52802 Aug. 30.14484 Sept. 7.14910 448

PC

CO TY996I 449 R, L R, R R, R R, D R, D R, L R, L R, L R, L R, L R, R R, L R, L R, L. R, D R, L, R, L» R, D R, L R, L R, L R, L R. L R, D R. L. R, L. R, L R, L R, L R, L R, L R, L R, L R, L. R, L. L, L D, D R, D R. S R, L R, L R, L L, L R, L R, L D, L R, S R, L R, L L,L R, L m * * * 1 1 1 1 1 1 1 1 1 1 1 1 l 1 5 5 5 5 15 15 10 70 90 90 84 10* 90 11 10 10 10 10 10 10 10 10 10 31 30 20 30 30 To Exp. Obs/Meas , -17 58 46.3 -17 58 50.2 -18 37 57.6 -10 01 26.4 -10 33 10.0 -10 33 12.6 -11 58 35.1 -11 58 37.7 -12 16 24.6 -12 16 28.6 -12 34 18.3 -13 43 45.3 -13 43 47 .3 -18 38 01.1 + 2 48 05.3 + 2 41 22.5 +32 44 11.6 - 9°3110?6 - 9 31 13.3 -10 01 21.6 -12 34 21.5 + 3 14 45.6 + 2 28 02.6 + 2 2122.4 +32 43 54.3 +31 57 00.3 +31 56 34.9 +30 25 36.6 +30 24 58.8 +19 5419.2 +19 53 15.5 +11 59 10.8 +11 58 37.4 + 9 28 12.9 + 0 23 17.0 - 0 10 53.8 - 0 10 57.2 + 9 52 18.8 + 9 52 19.7 + 9 35 25.0 +22 08 20.5 + 0 23 15.9 +17 24 21.3 +22 08 15.9 +21 20 58.1 +34 28 02.6 +17 24 20.9 +21 20 52.6 +34 28 02.8 +33 35 28.6 +33 35 22.8 433 Eros 1950.0 1965 h Alcock 1965 / Ikeya-Seki 13.86 15.35 15.43 15.15 10.98 15.54 04.03 03.24 49.45 42.78 36.86 37.63 35.15 34.70 30.58 32.03 47.53 30.87 31.99 47.77 43.98 40.24 42.36 36.54 33.41 20.28 22.62 46? 97 1965 g P/Giacobini-Zinner hr 859 8 59 9 52 9 59 9 59 9 08 9 08 9 18 9 18 9 46 9 46 9 52 1 23 03.36 1 01 24.18 1 01 23.65 1 23 02.40 1 14 57.85 1 14 57.02 4 52 12.12 4 52 11.14 4 27 52.74 4 27 51.38 15 18 27.79 15 19 38.66 10 31 12 21 12 21 12 17 15 13 53.03 15 22 03.70 15 23 17.12 10 31 12 17 17 06 17 06 17 10 17 10 17 18 17 18 18 08 18 08 18 42 18 42 22 56 32.92 22 42 24.75 22 42 25.94 22 15 08.97 22 44 24.84 22 55 16.28 22 55 15.72 22 44 25.72 1.53544 1.51030 1.53440 1.14851 1.15753 1.50614 7.51981 7.52120 2.50957 2.51374 3.51162 3.51440 3.11996 3.13316 2.29470 2.35338 6.29799 5.27622 9.46373 15.09976 15.11799 21.13531 22.13389 24.13312 25.12962 26.50492 22.51061 26.50770 31.53131 17.19831 24.50429 24.50852 31.53304 30.10340 23.15399 23.16337 17.46146 UT 21.27456 29.19730 29.22439 1965 1965 1965 1965 1962 1965 1963 1964 Sept. 17.14241 Oct. Nov. Sept. 30.09715 Oct. Sept. 22.50853 Sept. 2.28428 Sept. 2.32768 Nov. 5.24844 Dec. 17.42604 Aug. 25.25123 Oct. 21.24678 Nov. 9.43317 Aug. 6.27472 Table I {continued) R, L R, L R, L R, L R, L R, L R, L R; L, R, R R, R R. L R, L R, L R, L R, L R. L R, L R; L, R R, L R, R R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R. L R, L R, L R, R R, L R, L R, R R, R R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L L, L R. L L, L L, L L, L m 10 10 10 10 20 20 90 22 90 90 60 60* 50 60 60 60 60 30 30 30 80 80 80 90 90 30 60 90 90 30 90 90 90 90 90 38 80 90 53 91 30 30 30 30 30 30 30 30 30 30 31 30 Exp. Obs/Meas Ô 5 32 02.9 5 32 06.8 3 50 05.5 3 49 57.6 /, +10 35 18.1 +37 40 07.9 +37 40 12.4 +37 46 35.8 +37 46 33.9 - 3 38 15.3 +34 43 29.0 +12 36 28.1 +12 36 17.8 +10 34 52.1 +11 46 56.2 +34 43 44.5 -15 54 13.3 -14 53 43.6 -12 34 39.5 - 8 31 17.3 - 8 30 49.1 +29 52 15.2 +29 51 34.7 +10 59 08.3 +10 59 05.5 + 6 15 35.1 + 6 30 02.0 + 6 30 32.3 +11 47 24.7 -20 08 36.0 -20 04 35.9 -20 04 20.8 -12 35 14.9 -f 2 48 08.1 110 + 9 20 48.5 + 9 20 39.0 + 4 01 35.5 + 4 01 12.9 + 6 29 18.0 -20°0852il + 6 29 28.1 + 6 31 14.9 + 6 31 23.5 + 6 46 49.8 + 6 46 25.6 - 0 02 05.6 - 0 01 37.0 + 0 17 09.6 + 0 17 23.6 + 6 22 10.2 + 2 56 22.4 + 2 56 32.8 + + 4- + + 6 22 06.8 1950.0 SATELLITES AND MINOR PLANETS, COMETS, 1964 * P/Holmes 14.12 16?05 40.96 30.20 57.94 38.95 00.79 33.73 32.98 45.82 43.94 1965 a P/Reinmuth 1 1965 e P/de Vico-Swift 1965 b P/Tsuchinshan 1 1965 c P/Tsuchinshan 2 1965 d P/Van Biesbroeck 7 20 47.74 7 20 50.12 7 34 16.26 7 34 18.84 2 30 01.78 n 2 31 20.37 2 31 22.98 8 41 18.87 3 00 30.69 8 41 15.56 9 33 41.57 9 33 47.56 8 04 33.71 3 00 26.75 3 11 12.20 3 11 16.77 8 04 35.21 8 27 06.02 8 27 05.35 8 53 38.12 8 53 40.51 1 06 51.90 1 11 33.29 1 11 34.25 1 16 17.48 1 16 17.95 1 16 27.79 1 16 27.22 1 06 52.66 0 48 50.88 0 48 54.70 0 51 34.13 0 51 35.95 11 48 48.16 11 48 46.46 11 48 29.35 10 07 50.88 22 41 26.96 11 48 27.96 11 45 20.94 10 07 55.52 21 22 21 52 21 21 21 14 21 22 11 45 20.53 21 22 21 14 22 10 22 11 22 10 22^1l 1.20823 1.23253 1.17698 1.18601 2.25785 4.18763 1.26171 2.28076 2.17696 2.24987 2.45060 2.47282 6.40279 6.42710 4.41535 4.46396 10.27284 17.39295 11.29342 10.31242 19.19057 19.21557 23.11851 26.11434 16.37215 17.33253 23.14281 26.18101 24.17540 28.16751 24.15985 24.20586 29.15150 29.22580 15.14142 15.16469 UT 25.34490 25.36711 25.29046 25.31407 22.19299 23.19017 31.23020 1965 1965 1965 1965 1964 1965 1965 Astrophysics Data System © American Astronomical Society • Provided by the NASA Mar. Mar. 4.13416 Feb. Feb. 24.12194 Mar. Apr. Nov. 28.09320 Jan. 24.20053 Sept. 11.22536 May 31.18853 Oct. 28.11230 Jan. 2.13258 May 1.18602 Apr. July 16.30965 Oct. Aug. Sept.

1 1 a; ^r ^r TY996I R, T R, T R, L R, L R, S R, S R, T R, T R, T RL R, L R, T R, T R, T R, L R, T R, T R, T R, L R, R R; S, L R, S R, L W, W R, T R. T R, T R, T R, R R, L R, L R, R R, R R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L W, W W, W W, L W, L W. W W, W W, W W, W f m 1 1 5 5 5 5 5 5 10 10 10 10 10 10 10 10 10 10 10 10 30 49 62 62 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 32 30 30 40 40 61 61 60 60 20 31 30 30 20 30 Exp. Obs/Meas / -28 48 20.9 -28 12 13.3 -28 1127.1 - 6 11 46.7 -28 48 00.4 -18 51 39.6 -18 51 31.8 -22 26 41.3 -22 26 45.6 -22 3253.6 -22 33 04.0 +25 49 10.6 - 4 53 24.0 - 4 53 28.9 - 6 01 27.9 - 6 11 39.0 +44 24 29.7 +25 49 27.5 +28 54 18.1 +28 54 22.3 +24 19 30.2 +24 07 32.2 +24 07 19.0 +13 30 54.6 +13 30 56.3 +13 35 05.9 +13 35 05.5 +13 29 57.2 - 4 27 27.3 - 4 27 28.9 - 6 01 16.8 - 6 17 01.4 - 4 50 35.3 - 4 50 38.1 +45 29 30.5 +44 24 40.6 - 6 17 08.8 - 4 13 45.5 - 4 13 50.6 +34 34 03.7 +45 29 29.4 +13 29 55.5 +25°0656!8 +29 35 11.9 +25 30 53.0 +25 07 32.8 +27 15 36.7 +27 16 02.4 +29 35 13.9 +28 39 37.4 +28 39 20.1 +25 30 06.4 +22 45 53.7 +34 34 01.7 +22 46 58.6 1404 Ajax 1950.0 Ô 1221 Amor 1362 Griqua 1437 Diomedes 15.09 14.12 10.13 00.68 00.22 12.38 59.28 59.02 31.50 09.70 32.38 40.77 38.88 08.51 hm 1 49 26.15 1 49 26.53 2 00 41.35 2 19 56.16 2 00 41.05 9 53 46.64 9 53 45.02 2 19 56.49 9 32 38.61 9 32 37.98 2 12 55.08 2 12 55.53 4 44 04.72 3 51 40.98 2 13 43.16 2 13 42.50 4 16 33.53 4 16 31.68 3 51 39.73 4 44 05.86 12 35 28.20 12 35 02.12 12 35 01.70 15 13 15 13 15 07 41.38 15 07 40.41 15 03 04.54 15 03 03.70 18 19 18 19 18 10 18 09 17 55 17 54 17 53 17 55 17 53 170409?71 17 04 14.64 18 00 12.71 17 18 43.97 17 14 53.17 17 14 52.88 17 53 17 24 47.74 17 24 51.65 17 58 52.54 17 58 52.96 18 00 13.42 17 54 26.66 17 54 24.66 17 49 17 49 17 18 44.65 1.34773 1.19825 1.23506 1.37163 9.39650 9.22186 1.28419 1.23974 3.18501 3.20862 4.18984 4.21276 9.30888 8.34219 9.27971 8.31858 9.28290 9.33082 15.30272 14.24039 14.26817 29.20265 29.25126 17.28228 17.28990 17.41285 23.30456 23.32887 10.42847 16.40051 16.42482 11.28644 25.38787 28.17850 30.34878 30.37205 18.36271 18.39604 30.13859 30.39271 30.43396 30.40410 UT 1963 1962 1961 1964 1964 1959 1961 1963 1965 1958 May 15.27980 Mar. 9.20570 May 26.28228 Dec. 30.13167 Sept. 25.36155 Nov. 28.12449 Feb. 9.36465 June 1.32551 Dec. 17.36840 July Oct. May Aug. 30.38094 Apr. 10.40626 Oct. 1.34872 Nov. July 11.27120 June Table I {continued) R, L R, L R, L R, L R, L R, L R. L R, L R, L R, L R L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, R R, L R, L R, L R, R R, R R, L R. L R, L R. L R. R R, L R, L R, R R, L R, L R, L R, R R, L R, L R, L R, L R, L R, Lr R, L R, L R, L t m 5 5 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 11 10 10 20 10 32i 33 15 10 10 30* 30 30 30 30 30 30 30 30 30 31 60 60 30 32 30 45 64 60 30 30 Exp. Obs/Meas E. LLOYD AND R. E. ROEMER +20 25 19.7 +20 21 19.9 -32 53 03.1 -32 53 22.2 -33 31 56.8 -33 31 56.7 +20 21 19.4 +18 02 46.4 +18 00 34.2 +17 01 13.9 +17 01 08.6 +20 25 20.0 +13 00 41.6 +13 30 13.2 +18 00 39.7 +13 00 38.8 +13 30 16.9 -17 15 06.1 -17 15 14.1 -17 29 39.1 -17 29 46.4 -17 08 36.2 - 6 13 23.4 - 6 12 46.8 +14 25 21.6 +21°36'26!2 +21 13 01.2 +20 21 36.2 -17 08 23.5 +14 25 22.1 +13 57 10.5 +13 57 07.5 +21 12 53.5 +18 32 06.0 + 7 12 28.7 + 1 22 44.6 + 7 1037.2 +46 04 31.5 +46 01 26.7 +46 01 24.3 + 1 21 52.5 + 1 22 45.4 + 7 45 36.9 + 7 48 38.1 + 7 42 25.9 +46 04 33.9 + 7 48 37.8 + 7 42 24.0 1950.0 1221 Amor 1172 Aneas 944 Hidalgo 898 Hildegarde 12.46 16.53 26.91 22.55 54.87 59.98 33.88 51.88 55.02 31.07 hm 3 24 26.04 6 07 50.76 6 07 52.10 5 55 21.48 3 23 57.67 3 11 05.05 5 55 22.96 3 23 58.85 3 11 03.83 8 59 41.63 8 59 40.83 8 51 49.20 8 51 48.18 0 54 37.98 0 39 10.16 0 54 41.59 0 39 11.56 5 01 20.75 7 05 20.19 50643?21 5 01 22.71 4 48 41.56 7 05 18.40 6 49 13.13 2 23 36.52 2 22 21.14 2 22 20.19 4 21 40.99 6 49 14.49 14 53 11 31 13 24 13 24 14 53 13 07 22.61 12 48 08.01 10 57 10 57 11 31 13 07 23.89 12 48 06.74 10 49 10 49 13 12 43.04 22 49 47.98 22 49 47.46 22 38 56.48 22 38 55.84 6.40961 7.28416 7.31124 6.40624 9.35178 8.50536 9.36150 4.36552 4.38774 5.37405 16.25456 28.27748 18.32473 12.37109 21.22505 10.36807 28.23859 12.32395 18.30112 20.33404 20.35696 19.37111 12.28471 29.36122 20.38196 20.40626 29.39246 27.38860 27.41881 26.20958 29.17369 29.15216 25.29037 25.31259 UT 1964 1963 1962 1965 1964 1964 1964 1964 1964 1964 1963 Astrophysics Data System © American Astronomical Society • Provided by the NASA 1965

Oct. 27.31431 Dec. 16.21776 Nov. 21.18824 Mar. Sept. 6.30815 Apr. 10.34446 Mar. 14.33564 Feb. Jan. 6.36725 Dec. 19.33396 Nov. 5.32037 Dec. 26.26270 Aug. 5.35148 Jan. 12.34400 Jan. 8.47758 450 Oct. 23.41978

PC

CO TY996I 451 R, L R, L R, L R, L L, L R, L R, L L, L R,L R, R R, L R, L R, L R, L R, L R, L R, R R, R R, T R, T R, L R, R R, L R, L R, R R, L R, T R, T R, L R, T R, R R, L R, T R, T R, T R, R R, R R, L R, L R, T R, T R, T R, T R, L R, L R, T R, T R. L L, L L, L R, R R, L m 31 30 30 30 31 30 30 15 63 30 18 15 60 30 60 90 30 30 60 30 90 90 65 60 60 30 32 30* 30 30 60 60 55 60 90 30 30 30 30 60 90 30 30 30 30 30* 33 30 30 60 60 60 Exp. Obs/Meas / -14 20 22.0 -14 20 23.4 - 0 06 57.9 - 4 35 14.4 - 4 35 34.2 - 0 06 49.6 -11 52 26.0 -11 51 56.7 + 1 06 02.1 -12 48 16.0 -14 36 42.7 -14 36 35.8 + 1 06 01.1 -14 54 25.9 -13 14 19.2 - 9 06 56.6 -12 47 54.6 - 9 21 29.3 - 7 43 44.8 -14 54 33.2 -20 33 34.1 -20 33 40.4 -24 04 10.6 -24 55 55.7 -26 45 02.2 -32 51 23.8 -32 51 56.5 -37 36 26.9 -37 36 24.6 - 9 06 39.4 -30 46 29.2 -30 46 33.9 -31 29 59.4 -31 30 01.3 -30 28 09.4 -30 28 01.4 - 9 21 10.9 +34 27 38.8 +34 27 46.2 -24 03 56.7 -24 55 57.5 +38 12 30.9 +38 1216.9 +31 01 24.2 +19 28 08.1 +31 00 50.2 +28 52 30.2 +28 5136.6 +19 29 10.4 +15°2348?0 +19 02 02.2 +19 02 22.4 1627 Ivar 1950.0 1658 1953 NA 1653 1937 RA 1640 1951 QA 1657 Roemera 1655 1929 WG 26.11 54.08 54.60 24.41 32.56 35.51 51.41 55.66 hm 2 54 58.75 2 55 00.84 3 55 28.11 3 13 38.19 3 13 36.52 3 55 18.97 3 55 29.42 4 30 52.79 3 55 17.99 4 30 54.07 8 38 55.10 91323®79 8 38 58.53 17 10 48.77 17 10 48.43 16 55 15.83 16 55 17.48 17 28 25.07 17 28 23.60 17 47 06.53 17 47 07.17 12 14 11 53 11 53 12 21 13 23 49.79 13 10 11.46 19 59 44.83 19 59 43.75 19 18 16.51 19 18 13.75 19 12 37.21 19 12 37.50 12 14 12 21 12 56 13 23 50.87 12 56 12 46 51.34 12 46 47.26 16 11 40.95 15 57 03.68 15 15 38.05 15 15 36.28 12 26 55.55 21 58 28.58 16 11 40.11 15 57 05.30 21 38 31.44 21 38 28.59 20 55 06.44 20 55 05.17 1.42407 1.33394 4.19418 6.19808 6.24669 4.21987 8.35114 30.44368 11.45242 21.28301 14.17008 11.41887 15.31952 23.36725 19.22956 16.16189 10.18863 10.22978 24.43276 25.31040 11.37636 22.21824 10.29072 28.32724 23.25856 18.19973 31.34851 21.35652 1965 UT 1965 1961 1963 1962 1965 1965 1965 1964 1964 1961 Apr. 30.42042 May 23.34433 Dec. 15.27196 Nov. 25.28749 June 21.25697 May 14.15758 Sept. 11.40867 Oct. 11.37027 Apr. 24.37860 Sept. 22.14949 Aug. 19.14831 Sept. 16.12508 June July Aug. 1.37650 May 1.30963 July 2.42530 May 3.30207 June 28.30363 May 8.32614 Oct. 31.32559 Apr, 11.30623 June 10.26485 Feb. 18.15182 Apr. 21.33292 Jan. 21.34727 Table I {continued) R, L R, L R, L R, R R, L R. L R, L R, L R, R R, R R, R R, R R, R R, T R, T R, T R, L R, L R, L R, L R, T R, L R, L R, M R, M R, T R, L L, L R, L R, L R, L R, L R, R R, L R, L R, L R, L R, L R, L R, L R, L R, L R, T R, R R; R, L R, T R, T R T R, L R, L R, T f 1 1 1 3 3 3 3 m 10 10 10 10 10 10 10 10 10 10 10 30 30 31 12 60 61£ 10 30 10 30 30 20 30 20 10 10 11 14 20 10 20 20 20 15 30 60 30 60 61 60 60 32 60 Exp. Obs/Meas -21 05 50.2 + 5 47 04.6 -21 05 37.7 + 5 47 27.6 - 3 45 44.3 -24 07 02.3 -24 07 16.9 -19 31 38.0 - 0 55 55.7 +14 20 35.3 -12 38 38.8 + 5 26 12.8 +14 20 26.6 -12 38 41.6 -12 27 54.5 -12 27 56.0 - 3 01 37.5 - 8 05 03.3 + 0 36 12.1 + 5 26 04.1 - 3 45 44.8 - 8 04 55.8 + 6 09 02.8 + 6 09 34.7 + 0 36 27.6 -23 32 39.7 +22 00 05.9 - 3 01 46.2 -23 32 45.4 +23 39 11.8 +21 59 58.9 +23 39 11.5 +11 14 06.0 +11 14 11.1 + 8 08 23.0 + 8 08 20.3 +16 18 53.2 +22 13 23.0 +22 13 31.3 +22 44 33.6 +22 44 39.3 -30 39 59.6 -28 17 23.0 -33 54 56.4 -33 54 43.4 -30 39 28.4 - 0 07 45.1 - 0 39 16.2 -28 17 12.2 —28°40'20T4 1627 Ivar 1950.0 1601 1942 KA 1579 1948 SB 1565 1948 WA 1625 The NORC SATELLITES AND MINOR PLANETS, COMETS, 43.46 16.87 17.23 40.24 41.97 45.49 45.18 41.61 30.49 0 30 23.40 0 30 23.50 0 30 05.05 0 30 03.76 0 23 40.23 2 25 11.87 2 25 16.03 5 42 57.06 1 09 43.53 0 58 26.62 0 58 26.06 0 57 27.81 0 57 26.80 0 28 05.56 1 11 45.05 1 11 45.94 1 09 44.35 5 59 39.34 5 42 57.98 0 28 06.65 0 45 39.61 5 59 40.85 hm 3 40 01.94 3 40 01.45 3 20 05.31 3 20 04.94 7 34 33.18 7 12 31.06 13 47 13 44 13 47 13 44 14 21 14 21 14 18 14 23 14 23 15 08 05.04 14 42 58.10 14 42 56.65 15 08 02.88 16 24 06.41 16 24 08.46 17 45 50.60 -12 13 34.4 16 18 25.55 15 48 45.32 11 12 57.98 15 48 49.08 11 13 00.60 16 18 28.29 ll3445?17 7.24912 7.23176 1.34071 9.25863 3.40817 3.41720 9.24127 7.17631 4.36540 4.24087 3.40815 9.29943 13.43147 16.34887 13.40682 10.16592 11.18574 16.39320 17.23963 19.13918 11.31001 11.23960 10.44417 17.35174 24.12514 30.21096 30.24150 22.36824 15.24400 1962 30.27345 30.32692 UT 1958 1957 1965 1965 1962 1963 1964 1965 1962 1964 1962 1961 Astrophysics Data System © American Astronomical Society • Provided by the NASA

July May Mar. 3.39606 Dec. 11.17743 Apr. Oct. 28.13895 Feb. 10.12176 Sept. 1.32963 Sept. 17.21671 Dec. 11.19515 May 4.33207 Oct. 24.09944 Sept. 19.12251 Dec. 17.33576 Nov. 7.15895 Nov. 19.18206 May 31.33713 Jan. 11.27807 Sept. 22.33630 July 10.40701 Feb. May 3.35850 Jan. Mar. 9.25579 Feb. 13.36714

a;

00 TY996I R, L R, R R, L R, R R, R R. R R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R. L R, L R. L R, L R, L R, L R, L R, L R, L R, R R, R R, T R, L R, T R, L R, L R, R R, L R, L R, L R, R R, L R, L R, R R, L R. R R, L R, R m 60 60 60 60 90 15 15 15 15 15 15 15 12 10 10 90 17 30 15 36 30 30 30 53* 60 60 60 60 60 61 60 60 60 90 90 94 60 60 60 91 60 60 60 Exp. Obs/Meas 90 - 3 34 38.1 - 3°35'18?3 + 0 06 03.2 + 0 06 44.8 + 3 33 01.7 + 3 33 55.1 +29 26 36.3 +29 22 09.4 +29 2159.9 +29 26 41.0 +28 54 08.3 +28 54 01.2 +28 16 24.4 +28 1619.7 +26 41 25.7 +26 41 14.7 +24 27 19.5 +25 26 45.2 +24 27 16.1 +24 17 50.1 +24 17 51.8 +54 08 44.6 +54 08 38.5 +27 55 49.7 - 8 59 14.4 +25 26 01.1 - 8 59 03.4 -23 12 36.8 -23 12 36.1 + 2 23 16.6 + 2 23 07.8 + 1 29 06.9 + 1 29 10.5 - 7 40 53.6 - 7 41 04.4 - 8 21 57.4 - 8 21 45.3 +16 17 55.7 +16 34 02.0 - 7 47 31.5 - 7 47 25.4 +16 17 50.7 +16 34 11.2 -20 49 22.5 1963 UA 1964 UA 1964 XA 1965 BA 1950.0 Jupiter X Jupiter IX Jupiter XI Jupiter XII hm 1 10 47.24 3 51 48.87 1 10 48.00 1 10 04.62 1 10 03.02 1 06 05.06 1 01 47.07 1 01 46.57 35144?49 4 16 50.16 4 16 54.93 4 42 52.85 1 06 04.09 4 43 00.11 1 00 00.49 1 00 01.20 1 24 47.64 1 24 49.08 0 55 08.62 0 55 08.14 0 54 22.47 4 36 05.20 4 36 07.28 9 19 47.01 0 41 36.50 0 41 35.24 0 33 33.93 0 33 34.34 3 03 08.46 3 13 03.57 3 03 10.47 3 13 05.21 10 07 39.95 13 37 00.19 13 36 58.59 17 42 44.74 17 42 43.28 13 34 26.09 13 34 27.90 13 37 32.28 13 37 30.06 13 36 46.37 13 36 47.84 20 04 45.06 6.18531 6.23184 5.24465 5.17660 4.11312 4.09299 9.15426 4.19471 3.17863 21.18755 21.23824 10.21361 10.22646 UT 29.33137 29.34595 30.17648 30.20704 25.28878 25.31934 26.18006 26.20298 26.25253 24.22367 11.40478 24.21048 1964 19.26694 1964 21.29318 25.38089 14.42939 1965 25.36887 14.29608 1965 1965 1958 1960 1963 1958 1958 1964 1965 1958 1961 Feb. Jan. Oct. Nov. Dec. Jan. 26.22962 Feb. May 30.20020 June 20.19138 Apr. 11.35146 Oct. 25.33471 June 21.24816 Dec. 19.22181 Apr. 25.30100 Mar. 3.12517 Apr. 14.35840 Nov. 4.14888 Apr. 14.24968 Oct. 12.17058 Table I {continued) R, L R, L R, L R. L L, L R, L R. L L, L D, D D; D, L LL R, L L, L L, L R, L R, L R, L R, L L, L L, L L, L R, L R, L L, L R, L L, L W, L R, R W, L W, L R, R R, R t W, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, L R, S R, L R, S R, L m 5 2 2 2 2 10 10 10 10 5 5 30 30 30 30 18* 30 30 30 30 30 30 30 30 30 30 30 30 34 30 34 15 30 30 15 30 30 30 30 10 20 22 10 11 10 30 30 30 30 30 30 Exp. Obs/Meas E. LLOYD AND R. E. ROEMER 7 52 45.2 7 52 50.7 7 11 56.3 5 42 37.6 5 42 48.3 7 17 22.1 7 1140.3 4 53 51.5 4 53 39.2 —14°57'16!2 -14 57 19.7 -16 46 13.1 -16 46 17.0 - 2 23 26.6 - 2 23 24.0 - 2 22 31.7 - 2 22 34.1 - 3 46 49.1 - 4 09 57.5 - 4 09 55.1 +42 33 27.2 +42 33 33.8 +26 14 03.3 - 5 18 09.2 +26 14 07.1 +24 11 00.8 +24 10 52.2 - 5 17 14.6 - 4 36 27.6 - 4 34 57.2 +32 54 10.7 - 9 12 48.4 - 9 13 10.0 +51 35 12.4 +51 36 11.3 +58 23 17.8 +50 11 13.5 +50 10 21.1 +22 53 15.9 +22 52 19.6 +58 24 36.5 -23 45 01.1 -23 45 15.9 -26 1716.4 -26 1716.0 -19 59 00.4 -19 58 50.9 - 9 36 58.6 - 9 37 00.1 - 7 58 19.3 - 7 58 04.8 1932 RL 1935 KC 1948 OA 1950.0 1963 UA 1660 1953 GA 1658 1953 NA 1677 1916 AQ 11.05 10.06 28.88 28.45 18.93 06.41 21.08 06.55 06.01 04.40 05.12 39.91 40.99 36.63 25.63 25.24 25.78 26.09 50.78 53.25 57.85 57.15 35.54 33.91 hm 6 01 09.79 6 01 09.84 0 08 46.90 0 08 47.00 0 04 10.02 0 04 09.08 3 03 31.45 3 03 30.99 2 47 56.69 2 47 55.63 9 34 9 34 165857?46 16 58 56.20 16 32 01.05 16 32 00.36 2 40 38.56 2 40 39.17 19 52 19 52 19 14 3 19 04.57 20 03 19 13 3 19 02.49 19 13 19 02 20 03 19 02 23 36 40.62 23 17 50.72 23 17 50.24 10 10 10 10 12 17 12 17 21 15 21 15 21 15 21 15 21 21 13 01 31.33 13 01 30.92 12 37 10.06 12 37 09.25 21 19 21 19 11 28 41.60 21 17 21 17 11 28 40.70 5.36878 5.32087 4.31118 6.36460 7.31323 1.30059 7.30698 5.32579 6.49183 8.47132 8.49493 3.24334 5.33065 6.47933 3.26626 4.25928 4.29539 22.33534 20.32471 30.35036 21.33301 26.14737 26.17515 UT 26.23071 26.25779 23.49548 1965 23.27031 11.52639 26.28375 1965 24.25429 30.21103 1965 25.41355 1965 31.54331 17.25035 25.26839 1965 1964 1965 1963 Astrophysics Data System © American Astronomical Society • Provided by the NASA

Aug. May 22.31242 May 30.32605 452 Oct. 23.47655 June 20.31152 Sept. 26.16431 Oct. 23.24462 Aug. 6.33612 June 21.31079 Oct. 24.23070 Sept. 26.25875 Aug. Sept. Feb. 25.40522 Oct. Dec. 11.50972 July Apr. 1.29191 Nov. 25.26284 Dec. 17.22812 Jan. 31.52109

PC

CO TY996I 453 R, L R, L R, L R. L R, L R, L 5* 5 5 10 10 10“ Exp. Obs/Meas / +20 14 41.0 +19 20 01.0 +19 20 41.9 +19 41 29.8 +19 46 39.3 +20°1424?9 Pluto 1950.0 hm 11 28 40.24 11 25 18.90 11 23 50.93 11 15 43.68 11 28 45.33 ll1548?72 19.23293 12.33119 25.37721 UT 1965 1964 N of W. E of N to 0Í8. 20.1 still evident in a very faint trace of coma. to about 0Í5 nearly N. coma to 0Í8 E of N. shaped coma to 0Í5 NE. of a fan-shaped coma extending 0Í8 NE. 17.0; coma fan-shaped, W from nucleus to about l'. in rather poor seeing at low altitude. extends to 0Í5 entirely on the north side of the nucleus. centered on plate. mag about 14.4 in a very small coma. not fainter than 16.8 in a faint trace of coma. very faint trace of coma. 0Í6 from the nucleus. exposure ; faint, narrow tail to 10' in 65 °. tail to 20' in 65 ° on 30-min exposure. small coma. faint, narrow tail to 0Í4 E. of mag about 19.8. essentially stellar condensation shaped coma W to 1 '. 30-min exposure, fan-shaped coma, axis nearly due W to about l'. On 7' in 70°. fan-shaped coma to about 3' W; faint, narrow tail to nucleus ; faint, narrow tail to 20' in 55 °. faint, narrow coma to 0Í8 W from nucleus (3' on 30-min exposure); star trail on second plate. to at least faint coma entirely in the western quadrants, extending Sept. 26: Nearly stellar nucleus of mag about 18.5; faint tail to 0Í3 Sept. 8: Nearly stellar image of mag 18.5. Oct. 2 : Sharp, apparently stellar condensation of mag 18.2 with no coma. Nov. 3 : Sharp stellar condensation of mag 17.8 with no coma. Dec. 20: Rather weak images, but a sharp central condensation of mag July 5 : Weak, condensed image of mag 19.7. July 18: Small condensed image of mag about 19.4. Nov. 21 : Essentially stellar nucleus of mag about 18.8; fan-shaped coma Oct. 21 : Stellar nuclear condensation of mag 18.6; extremely faint coma Sept. 25: Stellar nuclear condensation of mag 18.6; faint, fan-shaped May 9: Strong, essentially stellar nucleus of mag about 17.5; coma Aug. 4: Nearly stellar nuclear condensation of mag 17.7 at the apex May 15 : Very sharp, stellar images of mag 20.6. Mar. 13: Apparently stellar nucleus of mag 17.9, practically no coma; Mar. 19 : Weak, stellar image of mag about 20.4. Mar. 22 : Stellar images of mag 19.8-20.0. Apr. 3 : Strongly condensed image of mag about 18.0. poorly July 1: Strongly condensed but not stellar nucleus of mag 16.8; fan- nucleus of mag about Dec. 20: Fairly sharply condensed, but not stellar, Mar. 22 : Condensed image of mag 18.3. May 8: Condensed image of mag about 16.7. Dec. 5 : Weak, nonstellar condensation of mag about 19.8. Apr. 7 : Stellar image of mag about 20.6. Apr. 15 : Stellar images of mag about 20.4. image of mag 20.2. May 14: Fair plate; condensed 18.8. Mar. 19 : Stopped by clouds. Condensed image of mag condensation of mag Sept. 11: Through clouds. Nearly stellar nuclear nucleus of mag 18.9; Oct. 12: Sharply condensed but not quite stellar of mag 17.7; Nov. 11: Very sharp, essentially stellar condensation image rather diffuse and elongated in a. May 9 : Poor plate ; comet Nov. 8: Stellar; mag 15.8 to 16.0. nuclear condensation, Nov. 10: 60-min exposure for appearance: Stellar sharp nucleus, fan- Dec. 19: 15-min exposure for appearance: Fairly Sept. 26: Stellar; mag 18.0. Oct. 22: Stellar; mag 17.6. of mag about 15.0; Jan. 6: Strongly condensed but not stellar nucleus Apr. 9: Sharply condensed image of mag 17.8. Apr. 16: Condensed image of mag 17.5. Aug. 17 : Faint, apparently stellar spot of mag 19.5. Aug. 19: Stellar images of mag about 19.5. nucleus on 30-min Jan. 7 : Poor seeing. Fan-shaped coma to 3' W from coma to 3' W from Jan. 11: On 60-min exposure, strong, fan-shaped 19.6. Comet on a Feb. 13 : Weak, somewhat diffuse spot of mag about condensation of July 5 : Very strong, sharp, but not quite stellar nuclear the barest trace of coma around a weak, June 7: Good plates; only 14.3; fan-shaped Jan. 17: Fairly well condensed nucleus of mag about weak to measure. Jan. 16 : Moderately condensed image of mag 20.2 ; very of mag 14.9 in a June 4: Sharp but not stellar nuclear condensation 1961 c =1962 VII P/Faye 1961 5 = 1962 VI P/Tempel 2 1960 ¿ = 1961 I P/Encke 1961 a =1961 VI P/Forbes Feb. 24.46741 Apr. 1.26344 Apr. 11.24998 NOTES Table I (continued) R, L R, L R, M R, M 15 15 33 30™ Exp. Obs/Meas -22°03'5976 -22 04 00.4 +21 50 22.2 +21 49 47.0 Pluto 1950.0 E S D S A T E L L I T L A N E T S , A N MINOR P COMETS, Saturn IX = Phoebe hm 10 42 58.86 10 42 49.01 19 10 58.53 191059®13 19.43061 UT Astrophysics Data System © American Astronomical Society • Provided by the NASA 1960 I960 19.8 in a trace of coma. coma 0Í3 in diameter. 17.5 ; trace of narrow tail E. V NW. diameter. no coma; trace of tail about 6" W. no coma. about 19.3. about 20. The second plate is the better. short, faint tail E. 60-min exposure on June 27, faint, broad tail S' SE from nucleus. fainter than 17.7. Practically no coma or tail. of coma. of faint tail to 0Í5 nearly directly W. tail to about 1Í0 in 300°. tail to about 0Í5 in 290°. narrow tail to about 1' in 295°. weak and diffuse on first plate. measurement uncertain. to 0Í2 in 60°. diameter. Trace of tail in 300°. faint trace of coma, mainly on W side of nucleus. hard to measure. 19.5. diameter around the nuclear condensation of mag may be involved faint disk of nebulosity 0Í5 in diameter. Comet image with a defect on the second plate. in 200°. of the nucleus. nearly entirely S of an incomplete round coma 0Í7 in diameter and diameter and mainly S of nucleus.

Dec. 26: Moderately condensed image of mag about 18.9. Mar. 23: Excellent plates. Strongly condensed nucleus of mag about Apr. 9: Condensed image of mag 19.8. Sept. 25 : Nearly stellar nucleus of mag 18.6 in a faint coma. Oct. 22 : Weak, but well-condensed image of mag 19.3. Mar. 19: Very sharp stellar nucleus of mag about 17.5 with practically Jan. 17: Sharply condensed nucleus of mag 19.0 in a faint symmetrical May 17: Strong, essentially stellar central condensation of mag about Aug. 2 : Faint, practically stellar spot of mag about 18.3. Aug. 17: Essentially stellar nucleus of mag 18.2 in a fainYcoma 0Í2 in Nov. 25 : Nearly stellar, mag slightly fainter than 19.0. Mar. 16 : Guiding irregularities from wind shaking the telescope. June 23, 27 : Sharply condensed spot of mag 18.2 with little coma. On Dec. 4: Nearly stellar image of mag about 19.0:. Comet image rather Dec. 30: Very sharp stellar condensation of mag about 18.3, practically cirrus clouds. Mar. 2 : Nearly stellar nucleus of mag 19.0. Possible Dec. 12 : Mag about 19.3, nearly stellar. Apr. 16: Practically stellar nucleus of mag about 18.0. June 30: Sharp, essentially stellar condensation of mag about 18.0. July 13 : Sharply condensed image of mag 18.0. Feb. 17 : Practically stellar nucleus of mag about 16.0 with only a trace on 30-min exposures, Nov. 9: Fairly well condensed nucleus of mag 18.0; about 18.0; trace Dec. 10: Poor seeing. Central condensation of mag condensation of mag Apr. 1: Poor seeing, streaks of cirrus. Nuclear out in poor seeing, Nov. 18: Mag about 20.5; images rather washed of mag about 16.5; Sept. 14: Rather poor seeing. Nearly stellar nucleus surrounded by a very May 15 : Weak, nearly stellar nucleus of mag 20.9 June 18: Sharp, stellar central condensation of mag about 17.5; coma; of faint tail to about Feb. 6: Well-condensed nucleus of mag 18.5; trace of faint tail Nov. 21 : Nearly stellar nucleus of mag 20.5 with possibility little coma; narrow Sept. 21 : Nearly stellar nucleus of mag about 16.2, a weak coma Oil in Oct. 13: Well-condensed nucleus of mag 17.5 in Jan. 24: Through clouds. Very sharp stellar condensation of fnag not 18.6; faint narrow Jan. 12: Sharp central condensation of mag about Apr. 10: Well-condensed nucleus of mag about 19.3. nebulosity 0Í5 in Sept. 20: Small, somewhat asymmetrical disk of mag 20. Both plates Feb. 16: Weak, diffuse object 0Í4 in diameter, hard to measure. Sept. 1: Through clouds; images weak; second plate condensation, mag. Apr. 13: Weak, diffuse object with little central diffuse at low altitude. Mag 19 +. Nov. 26: Images weak and diffuse spot of mag 19.5. Sept. 20: Small, somewhat round coma 015 in June 27: Mag 19.2 stellar nucleus in incomplete fan-shaped tail 0Í4 July 21: Nearly stellar nucleus of mag 19.3 ±; center of symmetry June 5: Nearly stellar nucleus of mag 18.5 near the

1960 e =1959 X Humason 1957 g =1958 V P/Wolf-Harrington 1959 i —1960 IV P/Väisälä 1954 & =1955 VI Baade 1954 k = 1956 I Haro-Chavira Mar. 30.34193 Apr. 1.37381 June 19.40049

pc

CO TY996I E. LLOYD 7 7 7 7 7 7 7 7 7 7 7 7 18.5 in a small, symmetrical coma 0Í4 in diameter. tail to 0Í3 W. NE-SW to about 0Í7. 14.2 in a small coma elongated tail to 0Í6 nearly due W. trace of coma, especially E. 17.1. densed nucleus of mag 18.0; very weak trace of tail west. of mag 19.5 ; without coma. fan-shaped tail W to 0Í8. edge of plate in 305°. coma 0Í2 in diameter. diffuse image not fainter than mag 19.5. of focus during exposure. symmetrical coma 0Í5 in diameter. slightest trace of coma. structure. Remarkable detailed coma near 20.0. fan-shaped tail to 0Í8 W. narrow tail 45 to On 25-min exposure, globular head >4 diameter, filter, small, fairly exposure on Kodak 103a-E through Schott GG 11 weak, rayed tail exposure, moderately condensed head >4 diameter; 22 to edge of plate. diameter >1Í5, very narrow tail to 15 N of E. coma at least 1 in diameter. coma 1Í5 in diameter. appearance; mag 19.4. to 2. the nucleus, diameter up 0Í2 diameter; faint, ill-defined tail (?) E to around the nucleus about structured coma. weak, practically featureless coma 0Í4 in of mag about 17.8 in a diameter. SE quadrant to > 1. traces of structured tail in trace of tail W to 0Í4. symmetrical coma 0Í7 in diameter on 60-min exposure. coma mostly on SE side of nucleus to 0Í4. 30 NW. narrow rayed tail bifurcated 2 back of the head, to tail 5 NW. well condensed head of diameter >1; weak, narrow star trail. vicinity of the nucleus. or tail rays in the immediate traces of coma about 1Í0. coma. about 0Í4 in diameter; probably a faint On a 60-min exposure, coma symmetrical coma with trace of tail SE to at least 0Í8. from the nucleus to 0Í2. 2Í5 WNW. tail to slightly contorted On 60-min exposure, narrow, without coma. May 24: Star trails curved and dimmed at low altitude. Sharply con- May 29: Very sharp nuclear condensation of mag 16.9; faint, fan-shaped Aug. 13 : Practically stellar nucleus of mag 15.0 with a broad, fan-shaped Dec. 2 : Weak, not quite stellar image of mag 19.6. guiding. Somewhat Dec. 31 : Through some clouds last 20 min, imperfect Mar. 3 : Small, practically stellar image of mag about 18.1 with only the May 10 : Serious interference from clouds. Comet image stellar, mag 20.0. May 24: At low altitude in indifferent seeing. Comet stellar, of mag a moderately bright Dec. 5: Fair nuclear condensation of mag 17.1 in of mag 19.0 in a Dec. 29: Strong, almost stellar central condensation in a faint trace of Dec. 26: Stellar nuclear condensation of mag 18.8 nucleus of mag about Feb. 3 : Strong, sharply condensed, but not stellar Mar. 4 : Strong, sharply condensed, nearly stellar nucleus of mag 17.5 in a Apr. 5 : Comet image rather weak and poorly condensed, mag about 17.9. May 9 : Essentially stellar image of mag 19.4, partially superposed on a of mag 17.5. Mar. 9: Condensed image of mag 16.9 in a faint trace of coma. Dec. 11 : Nearly stellar condensation July 15: Sharply condensed nucleus of mag 16.1; rather faint, broad, On 5-min exposure, Oct. 15: Fairly well condensed image of mag 13.0 ±. of mag about 12.1. Oct. 18: Strong, moderately well condensed image 13.2. On 16-min Oct. 25 : Moderately well condensed image of mag about close to the moon. Nov. 3 : Weak, poorly condensed images; position very 15.5. On 10-min Nov. 11: Weakly condensed images of mag about condensed head of Nov. 29: Total magnitude perhaps 15.5. Fairly well off center of plate. Nov. 29: Well-condensed image of mag 19.8, badly Feb. 3 : Nearly stellar nuclear condensation of mag about 17.8 in a slight May 26 : Very small but rather weak image of mag 20.2 -f. of mag about 17.7; very faint traces of May 3: Well-condensed image practically stellar nuclear condensation May 12: On 120-min exposure, condensation of mag 16.3 in a faint trace of Nov. 5: Not quite stellar June 17 : Very sharp, essentially stellar condensation of mag 16.3; faint, a faint coma. Change Jan. 28: Strongly condensed image of mag 18.2 in Jan. 30 : Strongly condensed image of mag 17.8 in rather poor seeing. Apr. 3: Stellar nucleus of mag about 19.0; trace of coma or tail S of E Apr. 24: Comet image very small, without coma, almost stellar in 17.5 embedded in a Feb. 24: Nearly stellar central condensation of mag and hard to measure. Oct. 31, Nov 1 : Comet images very weak, diffuse, July 1 : Some clouds in midexposure. Rather weak but condensed image nucleus of mag 16.8, practically but not stellar Dec. 16: Well-condensed of mag about 17.0. poor seeing. Condensed image Feb. 7 : Very structured coma completely surrounding Feb. 12: On 90-min exposure, stellar condensation of mag near 14.1; June 14: Strong, sharp, almost mag 17.7 in a nearly Apr. 30: Strong, essentially stellar condensation of image of mag about 17.2; structured coma Apr. 10: Sharply condensed Exposures too long for magnitude estimate. June 2, 9, 10: Outburst. stellar nuclear condensation of mag about June 11 : Strong, sharp, almost image of mag Jan. 12: Rather well condensed but distinctly nonstellar ±; weak, nearly Jan. 31: Fairly well condensed image of mag 17.4 June 1 : Both exposures stopped by clouds. a few 17.3. On 50-min exposure, stellar nucleus of mag Jan. 9: Nearly 1962 a =1962 II P/Harrington-Abell 1961/ = 1961 VIII Seki 1961 A =1962 I P/Perrine 1962 €=1963 VI P/Ashbrook-Jackson AND R ROEMER E. 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 Astrophysics Data System © American Astronomical Society • Provided by the NASA >30 from the nucleus. on Kodak 14.0 in a faint coma 0Í5 in diameter. On 20-min exposure in tail to at 103a-O, complex envelopes in head, turbulent streamers structured tail on longer exposure. only a few traces Kodak 103a-E exposed through Schott GG 11 filter, mag 16. to at least 15 E 30° S. tail seems to have turned by 90°, and tail structure is very disorganized exposure on on Kodak 103a-O, complex tail structure; on 45-min of structured coma close to the nucleus. edge of the plate, cluding corkscrew tail feature. Tail strong to the tail extending to about 7 NE with structure. to 15' mainly S-SE. min exposure, fairly bright, relatively narrow structured tail SE to trace of coma. signs of short tail spines or structure in coma, especially one W to 0Í5 and even blurred. Envelopes in the head very prominent. filter, only an hourglass-shaped coma to about l from the nucleus. plate 45 from the very complex wavy tail features to the edge of the from the nucleus. trace of coma mainly N of E-S of W. in diameter. On 30-min exposure, envelope in head ; tail with structure about 10. Turbulent streamers present weakly in the tail to at least structure. fine tail streamers extending to at least 30 from the nucleus; several envelopes in the head, up to 1Í8 from the nucleus. sector of about 90° tail: “shock front” features NE of nucleus; tail fills to at least 40 from the nucleus. least 30. On 50-min exposure on Kodak 103a-E through Schott GG 11 nucleus. 60° SW, to edge of the head; very complex structure in a sector about quite prominent trifurcated tail to 5' almost due E. 6 NE. filamentary structure in tail, 45 ° fan, extending at least at least 30. 25 from the nucleus; several narrow envelopes in the head, one, sharply defined, 0Í6 from the nucleus; others, much fainter, to at narrow rays in the tail, some to at least 30 from the nucleus; an envelope bounds the head at about 0Í5 on the sunward side of the with broad envelopes in the head up to 1Í5 ahead of the nucleus, width 25 from the nucleus. the plate at least 45 from the nucleus. in head and diameter. On 23-min exposure, very intricate structure streamers in tail. N of E. 60-min, considerable structure in tail extending to 10' in NE quadrant. prominent contorted tail, with rays, extending to 15' complexly webbed broad, rounded envelopes NE of nucleus, many coma. mag 15.8 in a trace of faint to 5', hardly more than 1' in other sectors. extensions in S-SE sector extensive than on Oct. 4. least 2. nucleus. and somewhat less 60-min exposure, highly contorted features fainter extensive than on 60-min, some structure, but much fainter and less Oct. 12. almost due N. possible faint trace of tail on first plate. 0Í7 W. Offsetting irregularities tail to about

tail N of W to 0Í5. tail N of W. than 19.0; trace of faint tail N of W. nucleus of mag not fainter condensation in a coma 0Í 7 in diameter ; 30-min exposure, strong central 0Í3 W. faint tail to about not fainter than May 10: Through clouds. Comet image well condensed, 14.6. Complexly May 29: Essentially stellar nucleus of mag about Nov. 15 : Well-condensed but not stellar nucleus of mag 16.6; some faint Aug. 5 : Two 20-min exposures show a very sharp nuclear condensation of mag 15.8. On Dec. 2: Strongly condensed but not stellar nucleus On 60-min exposure, Dec. 26: Essentially stellar nucleus of mag 15.6. May 29: Sharp, stellar condensation of mag 15.0; faint coma about 0Í6 Sept. 19: Sharp nucleus of mag 14.8. On 30-min exposure, very many On a 20-min exposure June 30 : Not quite stellar condensation of mag 14.7. 42-min exposure, Feb. 4: Condensed nucleus of mag near 15.7. On Sept. 26: 27-min exposure through clouds: Some streamers in tail to Oct. 21: Condensed nucleus of mag 14.8. On 10-min exposure, many May 24: Very sharp, practically stellar condensation of mag 15.3; faint Aug. 8: 20-min exposure shows remarkable changes from Aug. 6 : Axis of tail structure; several Aug. 1: 23-min exposure: very complex head and of mag about Aug. 4: Sharply condensed but not quite stellar nucleus in head and tail, in- July 7: On 60-min exposure, complex structure mag 15.0. On 60-min, Nov. 12 : Sharp, practically stellar condensation of “crabbed” appearance with structure and Oct. 2: On 60-min exposure, June 22 : Sharp, essentially stellar condensation of mag 16.0 in a faint Aug. 6 : Four 20-min exposures show conspicuous changes in complex tail On 60-min exposure, July 9 : Practically stellar nucleus of mag about 13.8. On 50-min exposure, Jan. 27 : Strong central condensation of mag 15.8. prominent, highly contorted tail structure Oct. 4 : On 60-min exposure, but not stellar image of mag 15.5. On Oct. 12: Strongly condensed of mag 19.5. Mar. 19 : Condensed nucleus June 17: Sharp, essentially stellar condensation of mag 16.1. On 30- images of mag 15.2. Sept. 29: Strongly condensed of mag 15.1. On Oct. 15: Very sharp, practically stellar condensation 15.8. Nov. 3: Sharp, practically stellar condensation of mag but not stellar image of mag about 16.0. Sept. 11 : Strongly condensed coma about 0'.2 in July 31 : Stellar nucleus of mag about 13.8, very weak detached from July 10: On 60-min exposure, large mass of tail material but not stellar images of mag 16.2. On Sept. 6: Strongly condensed but not stellar central condensation of Sept. 15: Quite small, sharp, nucleus of mag 18.9 with a faint trace of Feb. 24: Sharply condensed condensed images of mag 20.9. Apr. 16 : Very weak, moderately

short of mag 18.6; hint of very quite stellar condensation Nov. 5: Not of faint of mag about 18.8; trace nuclear condensation Nov. 26: Sharp rather thick cirrus. Sharply condensed Feb. 20: Last 20 min through 19.1; of mag about essentially stellar condensation Jan. 27: Sharp, 1961 «=1962 VIII Humason 454

pc

CO TY996I 455 center. mag about 18.5 :. seems confirmed by measurement. 18.0; weak, broad-fan coma to 0Í8 mostly in western quadrants. coma about 0Í8 in diameter. image of mag about 18.0:. slightly asymmetrical coma about 1' in diameter, mostly W of the nucleus. plate center. measure. trace of coma and tail. coma. mum coma and trace of tail W. W to 4'. apex of a fan-shaped coma to 0Í5 E. or tail E to about 0Í2. of coma E. tail W to coma. On a 61-min exposure, featureless, brush-shaped about 3Í5. at the On 60-min exposure, very strong, sharp central condensation of coma or tail E to about 0Í3. tail N of E to 0Í5. Some cirrus. very faint suggestion of tail NE. brush-shaped tail without coma. On a 60-min exposure, featureless, to0i5in75°. tail in 75°. Probably cirrus. tail to Oil NE. curved tail to 0Í4 ENE. narrow tail to 0Í3 in 60°. nearly symmetrically surrounded by a densed nucleus of mag 18.4, small, very faint coma. coma to Oil NE. of mag 19.0±. faint trace of coma to Oil NE. 1Í7 slightly S of E. of tail 25' to edge exposure, weak, many-rayed 110°. On a 30-min altitude. E to 113. about 315 with halo of diffuse material. gently curved spine E to At low altitude. plate in 110°. curved spine E to 315. of plate SE. tail 25' to edge much weaker bifurcated On a 40-min exposure, coma 013 in diameter. Sept. 23 : As on Sept. 21. Sept. 25 : Fair stellar image of mag 19.4 in mediocre seeing. Oct. 18: Sharply condensed images of mag 19.6 in fairly good seeing. Sept. 21 : Excellent stellar image of mag 19.4. Sept. 12: Good, stellar images of mag 19.4 about 20' from the plate Feb. 4: Poor seeing at low altitude. Rather diffuse-appearing image of Aug. 24: Image of mag 19.8, 4' from the edge of the plate. Identification Dec. 14: Strong, moderately condensed nucleus of mag near 17.0 in a Jan. 16: Poor seeing at low altitude, some clouds at beginning. Condensed Nov. 9: Poor seeing. Quite strong, fairly well condensed image of mag Jan. 6: Very poor seeing. Condensed image of mag 17.0; in a symmetrical Oct. 12 : Moderately condensed image of mag about 18.3. Oct. 9: Moderately condensed image of mag 18.5; about 15' from the Mar. 4: Weak images of mag near 19.8. Apr. 24: Weak, rather diffuse image of mag 19.3 to 19.8. Difficult to of mag 15.3 without Dec. 15: Sharply condensed but not stellar nucleus image of mag 16.5. Mar. 9: Sharply condensed but not quite stellar faint traces of coma May 3 : Stellar condensation of mag near 17.9 ; very Apr. 1 : Rather weak, slightly diffuse image of mag near 20.1. of mag 16.2 with a Nov. 9: Sharp, but not quite stellar condensation of tail W. Sept. 24: Condensed nucleus of mag 16.5; faint trace tail W to 1'. Oct. 11 : Nearly stellar nucleus of mag 16.4; narrow image of mag 16.8. Feb. 4 : Poorish seeing. Moderately well condensed about 17.0; trace Apr. 10: Sharp, stellar central condensation of mag June 4: Practically stellar image of mag about 19.2. imperfect guiding. Dec. 14: Fairly sharply condensed image of mag 18.8; of mag 19.2; Dec. 18: Sharply condensed, essentially stellar nucleus of mag 17.0. Aug. 27 : Sharply condensed, essentially stellar nucleus mag 16.9 with mini- Sept. 12 : Sharp, essentially stellar condensation of June 1: Sharply condensed image of mag about 18.6; very weak trace Jan. 12: Well-condensed but weak image of mag 19.6; no discernible tail to 0Í5 W. Aug. 24: Sharply condensed nucleus of mag 17.1 ; narrow mag 16.0, practically Jan. 6: Sharply condensed, nearly stellar image of a small coma; faint Nov. 9: Sharp stellar condensation of mag 18.8 in Jan. 9 : Rather weak image of mag 19.3 in poor seeing. mag 18.2; faint tail Oct. 25: Very sharp, essentially stellar nucleus of 18.3; suggestion of a Oct. 9: Sharply condensed nucleus of mag near seeing at such low altitude. Sharply con- May 31: Exceptionally good of mag 17.7, with a Sept. 11: Sharp, essentially stellar condensation image of mag 18.4. May 4 : Fairly weak condensed first 6 min. Sharp, nearly stellar condensation May 23 : Through clouds a narrow, moderately Aug. 25: Nearly stellar nucleus of mag 17.6 with stellar condensation of mag 18.5 with a very June 21 : Sharp, essentially 18.2; faint trace of June 27 : Sharp, stellar nuclear condensation of mag trace of very short July 15: Nearly stellar condensation of mag 18.0; of mag 17.8 in poor seeing at low altitude. Apr. 29 : Condensed image image of mag 17.5 in fair seeing at low Apr. 24: Apparently stellar of mag 13.5 in a symmetrical quite stellar condensation May 23: Not condensed nucleus of mag 14.6; narrow, July 13: Moderately sharply condensed nucleus of mag 15.4; narrow, July 16: Moderately sharply condensation of mag 14.1; curved spine June 21: Sharp, nearly stellar stellar nucleus of mag 14.4; curved spine to June 23: Sharp, essentially to 112 in mag 14.2; curved spine nuclear condensation of June 16: Sharp 1963 g P/Arend-Rigaux 1963 /=1963 VII P/d’Arrest 1963 ¿=1963 VIII P/Kearns-Kwee 1963 c = 1963 IV P/Johnson SATELLITES AND MINOR PLANETS, COMETS, Astrophysics Data System © American Astronomical Society • Provided by the NASA trace of coma. On a 60-min exposure, weak tail to 28' in 170° with very to at least 25' SW. coma. metrical coma 013 in diameter. On a 60-min exposure, a narrow tail faint ray structure. coma 0Í7 in diameter. symmetrical coma 013 in diameter. On a 50-min exposure, faint tail faint, almost featureless tail to about 315 in 280°. 16.5. On a 60-min exposure, suggestion of weak spines slightly S of W with some ray structure to 15' in 295°. 10', E 6° N to 6' from nucleus. metrical coma about 0Í8 in diameter. of coma, possibly 0Í5 in diameter. exposure, a narrow tail to at least 35' in 245°. and nearly E. symmetrical coma about V in diameter. narrow tail to about 4' in 250°. £35^0 edge of plate. densation of mag 15.8. On a 30-min exposure, narrow spines W 6° S to exposures in diameter. Rayed tail of similar appearance on longer blue and in yellow light. a 10-min exposure. diameter. Rayed tail £30^0 edge of the plate on tail. longer exposures, intricate changing features in rayed rays in tail least 2' in diameter. On a 10-min exposure, numerous comparable density. images of mag about 17.9, little trace of coma. by clouds. plate. very faint short tail W. Guiding irregularities on second posed on the end of a faint star trail. W to 0Í3. plate stopped by clouds, affected by guiding irregularities.

of mag near 19. exposure. Rather faint but apparently stellar image by imperfect guiding. coma. 19.8 without coma. stellar image of mag near weak because of low altitude. coma ; first exposure rather near 20.0. trace of coma, mostly NE. in mediocre seeing. to 3Í5. the nucleus. on N side of coma NNE. W 30-min exposure, tail curves tail NW to 0Í8. On a of a fan-shaped May 4: Very sharp nuclear condensation of mag 14.2 in a faint trace of May 15: Essentially stellar condensation of mag 14.5 in the faintest Apr. 16: Nearly stellar condensation of mag 14.3 in a trace of coma. Mar. 20: Sharply condensed nucleus of mag about 14 in a symmetrical Apr. 24: Essentially stellar condensation of mag 14.2 in a faint, sym- Mar. 21: Sharply condensed but not stellar nucleus of mag 14.0 in a Apr. 1 : Appearance as before; nucleus of mag 15.0. On 60-min exposure, Sept. 9 : Very sharply condensed nucleus of mag 18.1 in a very faint trace Oct. 12 : Weak but apparently nearly stellar image of mag 19.2. Aug. 12: Very sharply condensed nucleus of mag 17.2 in a very faint, May 16: Narrow spine SW to about 12' from the nucleus. May 30: Fairly strong coma about 0Í6 in diameter with distinct con- coma at least 1Í5 in Mar. 1: Nearly stellar nucleus of mag 12.1 in a reference stars. On Mar. 20, 21: Comet much overexposed in recording June 26: Moderately condensed weak coma about Oil in diameter, of mag July 14: Very sharply condensed nucleus of mag 15.8 in a weak, sym- bright coma >2Í0 in Feb. 24: Stellar nucleus of mag 13.2 in a large, large, bright coma at Feb. 25: Nearly stellar nucleus of mag 12.2 in a June 16: Strong, fairly well condensed image of mag about 16.4; faint, June 21 : Very weak but condensed image of mag near 15.8. On a 30-min image of mag 17.8:. Dec. 14: Imperfect guiding. Fairly well condensed Jan. 20: Diffuse images of mag near 15. exposure stopped Feb. 6: Essentially stellar image of mag 18.7. Second edge of a star trail of Apr. 12: Comet image, of mag about 19.1, on the 0Í5 in diameter. Jan. 7: Very poor seeing; almost uncondensed images Jan. 9 : Diffuse images of mag near 15. to 14.5. Jan. 15: Moderately condensed images of mag 14.0 of mag 18.0. Second Nov. 15: Sharply condensed but not stellar image badly during the Dec. 21: Extraordinarily poor seeing, deteriorating

of mag 18.0. Jan. 7 : Stopped by clouds. Fairly well condensed image condensed Jan. 9 : Inferior seeing and guiding on both plates. Moderately mag 18.5. Nov. 21: Essentially stellar condensation without coma, trace of tail S of W. Aug. 27 : Fairly weak, condensed image of mag 18.3, of mag 18.3, super- Sept. 23: Exceptionally good plate. Stellar nucleus faint trace of tail Oct. 12: Well-condensed image of mag 18.4 with very 17.7; possibility of Oct. 26: Very sharp nuclear condensation of mag of mag 20.5. May 4: Very weak image sensibly stronger image of mag about 20.1. May 11 : Well-condensed, Sept 28. : Murky; clouds in midexposure. Oct. 21 : Condensed image without coma, mag 18.7. mag 18.2. Oct. 28: Essentially stellar condensation without coma, coma. July 8: Essentially stellar image of mag 18.8 without coma. July 31 : Essentially stellar nucleus of mag 18.3 without image of mag near 18.8, slightly elongated July 1: Sharply condensed image of mag near 20.0, without coma. Dec. 10: Weak, nearly stellar but weak image of mag near 20.1, without Feb. 25: Well-condensed at low altitude. Sharply condensed, essentially Nov. 4: Very poor seeing image of mag about 17.3. Feb. 5 : Poor seeing. Condensed condensed image of mag about 19.7, without Sept. 11 : Moderately well of mag 19.4, almost without coma. Jan. 31 : Well-condensed image stellar condensation of mag 17.5; faint Dec. 17: Very sharp, practically moderately well condensed images of mag Oct. 11: Quite weak but faint 16.9 at the apex of a very sharp condensation of mag Nov. 7 : Very but not stellar, images of mag 17.1 Jan. 16: Fairly well condensed, the apex of mag 15.2 at sharp nuclear condensation Sept. 11: Strong, 15.6; trace of coma, especially sharp, stellar nucleus of mag Oct. 9 : Very 1963 b =1963 III Alcock 1963 a =1963 I Ikeya 1962/= 1963 II P/Whipple

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CO TY996I mag near 20.0. somewhat fainter than 20.0. 19.0 in good seeing. tail E to 0(4. S of E to 0(3. faint fan-shaped tail S of E to 0(2. fan-shaped tail slightly S of E to 0(3. condensation of mag not fainter than 16.4 at the apex of a fan-shaped in a nearly symmetrical coma 0(3 in diameter. 18.7 with only a trace of coma. image of mag near 17.4 embedded in a faint coma. Strong, essentially stellar condensation of mag near 17.0, embedded faint coma 0(3 in diameter. 15.2. coma. without coma. 12' slightly N of E. sation of mag about 18.9, almost without coma. coma. mag not fainter than 17.3. coma Oil in diameter; trace of tail to 17.2 in a small, symmetrical bright coma 0(4 in diameter. rays, to about bright coma 3' in diameter; weak tail, possibly with symmetrical coma. embedded in a faint, symmetrical coma 0(3 in diameter. coma. about 14th mag. tail SW to 0Í5. trace of tail N of E to 0Í4. probable trace of faint tail E to 0(3. WSW to about 0Í4. mentary tail N of E to 0Í4. trace of narrow tail to 0Í2 NE. mag not fainter than 17.0 ; apex of a tail slightly N of E to 0Î5. plate in 110°. the edge of the plate. 0Í4 in 200°. a trace of faint tail SE to 0Í3. about Oil in diameter; possibly to about 1'. exposure, sharp nuclear in diameter. On a 27-min in a coma 0Í8 a coma about 3' in diameter asymmetrically located in condensation wisp of coma SW. trace of tail NE images; mag probably about 16 to 17 ; possible weak 35' to fairly narrow tail of nearly circular envelopes; with a couple LLOYD R. E. May 2 : Weak but sharp and definite stellar images of mag 20.4 db. May 22, 23: Weak but very sharp and definite stellar images of mag May 31 : Very sharp condensation of mag near 19.1 : at apex of a weak, May 1 : Rather weak but quite sharp and definite stellar images of Apr. 19: Nearly stellar condensation of mag near 17.4 at the apex of a Apr. 1 : Sharp, stellar condensation of mag 16.3 with a trace of faint tail Mar. 2 : Poor seeing, wind blowing the telescope. Fairly well condensed Mar. 10: Considerable high cloudiness. Strong, practically stellar Mar. 4: Well-condensed but weak image of mag near 19.3, practically Apr. 1 : Practically stellar central condensation of mag 18.0 in a small, Feb. 24: Extremely bad seeing. Mag 19. Feb. 23 : Second exposure through considerable cloudiness, thick at end. Apr. 24: Fairly well condensed but distinctly nonstellar image of mag practically without Nov. 28: Very sharp nucleus of mag about 18.9, trace of coma. Sept. 29 : Almost stellar image of mag about 18.8 ; barest near 18.8. Jan. 2 : Poorish seeing. Nearly stellar image of mag Jan. 26: Strong, nearly stellar image of mag near 18.3, almost without condensation in a Sept. 1: 50-min exposure for appearance. Sharp not fainter than 18.0. Dec. 26 : Cirrus. Sharply condensed image of mag coma. Feb. 25 : Small stellar image of mag near 19.5 without images of mag about Sept. 11 : Very well condensed but not quite stellar quite stellar conden- Oct. 28: Second exposure stopped by clouds. Not Jan. 24: Stopped by fog. Excellent stellar image of mag 18.2. in a small, faint, Sept. 29: Sharply condensed nucleus of mag 14.9 images of mag 15.8 Oct. 27: Strong, well-condensed, but not stellar not stellar image of Nov. 26: Through clouds. Sharply condensed but July 17: Mag 19.5. of mag about Aug. 16: Sharply defined, almost stellar condensation of mag 15.4. Aug. 20: Sharply condensed, practically stellar nucleus 14.7 in a moderately Aug. 29 : Practically stellar nucleus of mag about practically without Jan. 24: Sharply condensed images of mag near 18.1, July 16: Well-condensed object of mag about 19.2. Condensation at apex of a fan extending E; Dec. 26: Cirrus clouds. nuclear condensation Aug. 8: Well-condensed images with little coma; of mag about 17.2; Apr. 23: Sharply condensed, nearly stellar image nucleus of mag about 17.6; faint trace of Aug. 30: Sharply condensed quite stellar condensation of mag about Sept. 30: Strongly exposed, condensation of mag near 16.5 in a coma Oct. 27 : Strong, very sharp condensation of mag 16.2; coma and rudi- Nov. 25: Very strong, sharp of mag 15.6 with a Feb. 25: Strong, practically stellar condensation mag near 16.8 at the Apr. 1 : Strong, practically stellar condensation of image of mag near 18.0; faint narrow ray Aug. 6: Essentially stellar located on the basis of July 10 recovery. June 14, 15 : Weak images images of mag about 19.4. July 10: Practically stellar condensation of mag 18.9 with a very faint July 14: Essentially stellar of mag about 14.0 embedded well condensed nucleus Aug. 31 : Moderately of mag about 20.7 nearly 15' from center of June 11 : Very weak image Image about as well condensed as are star Jan. 27 : Dreadful seeing. 1965 d P/Van Biesbroeck 1965 c P/Tsuchinshan 2 1965 b P/Tsuchinshan 1 1965 a P/Reinmuth 1 1964 i P/Holmes 1964 h Everhart 1964 g P/Wolf-Harrington R AND E. ROEME Astrophysics Data System © American Astronomical Society • Provided by the NASA small bright coma 0Í4 in diameter. coma at least 3' in diameter, nucleus about mag 12. ray structure, 25' to edge of plate in 255°. in a strong coma about 1Í0 in diameter. nucleus. On a 20-min exposure, faint trace of tail with suggestion of asymmetrical coma—a semicircle of radius 0'.7 centered NE of the a trace of coma. 17.4:. densed as are star images; mag probably 15-16. in diameter; very faint trace of tail slightly S of E. practically stellar condensation of mag not fainter than 18.3. Only the without coma. coma 0Í8 in diameter. Very faint, featureless tail E to at least 5'. slightest trace of coma. the plate in 245 °. trace of coma, mostly NW. mostly N. trace of coma or tail to 0Í3 NW. coma. trace of coma. previously; symmetrical coma about 1Î5 in diameter. coma. mag not fainter than 19.0. mag 19.4. near 12th. On an 11-min exposure, rayed tail about 30' to the edge of of mag near 18.5 :. NW. Second exposure stopped by clouds. trace of coma. the SW edge of a coma extending NE to 0Í6. narrow tail to 5' trace of coma, especially NE. On a 30-min exposure, SW. weak and diffuse; difficult to measure. faintest trace of coma. symmetrical coma 1Í5 in diameter. 0Í5 W. 19.0; weak trace of tail to symmetrical coma 0Í5 in diameter. nucleus. fairly bright coma, mostly NE, to about 0Í8 from the confirm the recovery. measurement, but it does image of mag about 17.7. faint trace of coma.

threshold. not much above the plate second plate. 18.6:. Hard and uncertain to measure. condensed image of mag about Aug. 5 : Strong central condensation in considerably overexposed image ; July 17: Moderately sharply condensed image of mag near 13.2 in a July 14: Rather sharply condensed image of mag about 13.7 in an June 15: Better seeing; some guiding irregularities. Mag 16.0db, with July 10: Nearly stellar condensation of mag near 14.0 nearly central Dec. 4: Interference from, finally stopped by clouds. Sharply condensed, Dec. 11 : Sharply condensed and reasonably strong image of mag near June 14: Poor seeing at low altitude. Comet image about as well con- Oct. 11, 12: Rather sharp condensation of mag near 18.0 in a faint Jan. 26: Well-condensed but rather weak image of mag 19.2, practically Jan. 11 : Comet image trailed slightly. Estimated mag 17.9. Mar. 14: Condensed image of mag about 18.1. 18.1 with a trace of Mar. 15: Sharply condensed image of mag about 16.2 with a trace of Mar. 21: Strong, sharply condensed image of mag July 16: Strong condensation of mag near 12.7. Symmetrical coma 0Í6 trace of coma mostly Sept. 4: Well-condensed image of mag 18.2 with a with a very faint Oct. 8: Nearly stellar condensation of mag near 18.8 17.8 in a very faint Oct. 27: Nearly stellar condensation of mag near June 15: Comet appears brighter and more sharply condensed than of mag near 17.7; July 16: Sharply condensed, essentially stellar image 18.5; trace of coma Aug. 6: Practically stellar image of mag near Rather diffuse image Aug. 15: Very high humidity, imperfect guiding. Feb. 19: Well-condensed image of mag about 17.7. 17.9-; possibly a Apr. 11: Quite well condensed image of mag about 15.8. Aug. 30 : Very sharply condensed image of mag near condensation of Nov. 26: Thick clouds. Very sharp, essentially stellar not fainter than Jan. 3 : Cirrus very thick last 20 min. Very weak image, condensation of mag about 16.8 in a Mar. 15: Strong, sharp nuclear 19.0:. Jan. 31 : Very weak, rather diffuse image of mag near Comet image June 9: Effects of differential refraction at low altitude. 15.4 with a faint Aug. 5: Very sharply condensed nucleus of mag about 16.3; only the Sept. 29: Nearly stellar condensation of mag about near 15.9. May 8: Practically stellar nuclear condensation of mag June 11: Rather poorly condensed image about 0Í5 in diameter, mag image of mag about 16.8. Mar. 14 : Poor seeing. Condensed condensation of mag about 16.7 in a nearly Apr. 10: Not quite stellar of mag about 15.4; June 9: Strong, practically stellar condensation mag about 14.8 near July 3 : Strong, practically stellar condensation of mag about 20.3. Dec. 16: Very weak images; appearance, mag 18.6. Dec. 18: Not quite stellar Image too weak and diffuse for accurate Dec. 23: Very bad seeing. stellar image of mag about 16.0 with a Feb. 13: Strong, practically from clouds. Rather weak, poorly Sept. 7 : Poor seeing, interference 19.7. stellar image of mag Dec. 18: Apparently apparently stellar images of mag about 20.2, Sept. 25 : Very weak but Comet superposed on a faint star trail on the Oct. 12 : As on Sept. 25. but quite weak image of mag about Aug. 30: Fairly well condensed 19.9. stellar image of mag Dec. 17: Apparently mag about 20.2. stellar images of Sept. 24: Apparently

poorish seeing. Rather well condensed Jan. 15: Guiding irregularities, 1964 / Ikeya 1964 d P/Honda-Mrkos-Pajdusáková 1964 b P/Pons-Winnecke 1964 c Tomita-Gerber-Honda 1963 i P/Kopff 1963 h P/Encke 456

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CO TY996I 457 fainter than 16.4. elongated; mag about 16.6:. is satisfactory. reference star configuration Sept. 6 : Mag about 16.6. Dec. 11 : Mag 17.5. Dec. 26: Mag about 17.1. Aug. 5 : Mag about 12.5. Oct. 29: MP image near edge of plate. Mag about 15.5. Nov. 4: MP image in corner of plate. Through some clouds. Mag not May 30: Mag 18.0—. Sept. 26: Mag 16.4. Oct. 24: Mag 16.6. 1961 May 14: Mag about 17.1. 1963 Dec. 15 : Second plate affected by inferior guiding. 1965 May 23 : Mag 16.7. May 30: Excellent stellar images of mag 18.0. Aug. 26: Mag 16.9. Oct. 23 : Mag 16.4. July 4: Mag about 14.9. Jan. 6: Images fuzzy from very poor seeing. May 22 : Mag about 15.3. Aug. 4: Mag 17.1. Aug. 26: Mag 17.5. Aug. 6: Mag 16.3. Aug. 5: Star trails rather ragged; MP mag 17.0. Apr. 11 : Offsetting imperfect, satellite image weak on second plate. Apr. 14: Last 2" not properly set off on first plate. Apr. 14 : Last 2 " not properly set off on first plate. 1965 Oct. 30: Mag 15.4. 1964 Apr. 11, May 3: Mag about 18.1. 1965 Oct. 31 : MP image elongated; mag 15.8 to 16.0. 16.2. 1964 Dec. 11 : Mag about 10' from edge of plate because of large O—C; 1964 Jan. 21 : MP'about Sept. 16: Mag 17.6; mediocre seeing. 16.1. Mar. 9 : Mag trails lumpy. Mar. 20 : Star mag about 17.6. May 18: MP images elongated; May 23: Poor seeing; mag 18.0:. Aug. 19 : Mag 16.9. First exposure stopped by clouds. about 17.7. May 8: Sharp images; mag Sept. 17 : Mag 16.5. June 28: MP image badly trailed on first plate. better. The second plate is the dark plates, MP image weak. Feb. 4 : Very slightly lumps. MP image trails consist of many regular Apr. 10: Star elongated; mag about 16.4, Apr. 16: MP images slightly June 9: Mag about 18.5. Oct. 24: Mag 16.5. mag about 18.1 :. June 1 : MP images elongated; 1948 OA 1963 UA 1964 UA 1935 KC 1932 RL 1965 BA 1660 1953 GA 1658 1953 NA 1657 Roemera Jupiter IX 1655 1929 WG Jupiter XI Jupiter XII 1362 Griqua 1653 1937 RA 1221 Amor 1583 Antilochus 1625 The NORC 1627 Ivar 1640 1951 QA Provided by the NASA Astrophysics Data System SATELLITES AND MINOR PLANETS, COMETS, © American Astronomical Society • 16.5 in an extremely faint coma. in a trace of coma. small, weak image of mag somewhat fainter than 19.7. bright, symmetrical coma 0Í6 in diameter. Very small faint diffuse patch of mag near 20.5. coma 0Í6 in diameter. to the N side of the tail but no fine ray structure. evidence of fine condensation ^0Í2 W. Narrow tail spine W without fairly bright, symmetrical coma 0Í6 in diameter. to 21.0 and from Oct. 21.6 to 21.8 UT. tail spine nearer coma 0Í8 in diameter. Longer exposures show strong ray structure. weak and poorly defined.

in 255°. On a diameter, larger asymmetrical coma and weak tail tail axis. several weaker rays near 10' long at larger angle to long, strong rays; 20-min exposure, tail 45' to edge of plate: two in 255°. coma about 3' in diameter; narrow, rayed eter. On a 15-min exposure, tail to at least 25' in 255°. a 20-min exposure, strong condensation in coma 0Í7 in diameter. On weak tail to about 30' in 260°. a coma 3' in diameter; narrow, to 35' slightly S of W. 20-min exposure, rayed tail shaped tail to 1Í2 SW. On a 20-min exposure, narrow tail to 25' coma near V in diameter. diameter with fainter envelope 1Í3 in diam- symmetrical coma 0Í6 in of fan-shaped tail in 240°. apex of a very faint trace tail WSW to 0Í4. but trace of to 1Í7 WSW shows considerable curvature. On a 90-min exposure, tail 0Î3 WSW. of tail to about , Sept. 6: Mag 16.7 ; a little interference from clouds. Oct. 25 : Mag 16.5. Mar. 20: Poor seeing; mag 17.7. Mar. 14: Mag about 17.1. Aug. 29: Mag 16.1. Aug. 5 : Mag about 16.2. Sept. 2 : Mag 17.0. at one end. Very Sept. 24: Low altitude: star trails curved and weaker Apr. 10: Mag about 16.8. 16.6 embedded in a Oct. 23: Nearly stellar condensation of mag near Nov. 5 : Mag about 18.6. Sept. 22: Weak, stellar-appearing image of mag 19.7. at low altitude. Sept. 25: Excellent plate in surprisingly good seeing Jan. 12 : MP near E edge of plate. nucleus of mag near Sept. 30: Sharply condensed but not quite stellar in a faint symmetrical Oct. 3 : Sharp, stellar condensation of mag near 17.2 fainter secondary Nov. 1 : Small, sharp nucleus, suspicion of much comet image very Sept. 21: Deterioration of seeing from midexposure; embedded in a fairly Oct. 15 : Nearly stellar condensation of mag 16.7 Aug. 6: Mag about 16.0. Aug. 29 : Mag about 16.3—passing clouds. of mag near 16.7 : Oct. 1 : Very poor seeing. Nearly stellar condensation 19.8. Sept. 17 : Faint, stellar-appearing image of mag near object from Oct. 20.6 Oct. 20-21 : The comet was a naked-eye daylight of a nearly round Oct. 31 : Strong, sharp nucleus nearer the east edge narrow, rayed tail to 40' in 250°. Oct. 2 : On a 20-min exposure,

symmetrical images. Poor seeing. On a Oct. 1 : Sharply condensed of coma near 1. Oct. 3 : Sharply condensed symmetrical images, diameter envelope 0Í7 in Oct. 7: Sharp nucleus in definitely bounded round nucleus of mag near 13.0 in a symmetrical Sept. 26: Sharp, well-defined of mag near 17.8 at the apex of a fan- Sept. 25: Stellar condensation nuclear condensation of mag near 18.0 at the Oct. 15: Not quite stellar nucleus of mag near 14.0: in symmetrical Sept. 22: Sharply condensed condensation of mag near 13.7 in a strong, Sept. 24: Practically stellar of mag near 18.6; trace of tail WSW to 0Í3. Sept. 2: Stellar nucleus as on Aug. 4. Aug. 6 : Appearance coma, 18.0 in excellent seeing. No nucleus of mag near Aug. 25 : Stellar trace of mag near 18.7 with faint stellar condensation Aug. 4: Practically 1965 h Alcock 1965 g P/Giacobini-Zinner 1208 Troilus 1172 Aneas 1143 Odysseus 884 Priamus 944 Hidalgo 898 Hildegarde 1965 / Ikeya-Seki 1965 e P/de Vico-Swift

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CO TY996I