II. DISCUSSION Meaningful statistics on the relative numbers of A question of importance is whether the absolute M dwarfs has A long-standing frustration regarding 1952, 1963), 1863), Wolf (1914-1929), Yale (Jenkins (Dyson and [GLS] (1969), Groombridge [Grmb], are dMe’s, and that all of the stars of types dM5.5 or show no strong dependence on type. magnitudes of the dMe stars are different from those observational limit of the program was by apparent shows that there are very few field emission stars later are dMe’s. The frequency of subdwarfs seems to (Weisse 1846, Ross (1925-1939), Weisse-Bessel [WB] magnitude. Column (4) of table 2, which does not include the Taurus cloud and Orion Nebula stars, through M2, that roughly half of the M2.5-M5 stars names. The Lalande, variable star, and constellation magnitude from Gliese or other sources, the trigonom- spectral type. emission- and absorption-type stars can be compiled from these data but not results concerning the luminosity function among M dwarfs because the Observa- Cincinnati (Publications of the Cincinnati Henry Draper, and the standard Aitken [ADS], last three columns of table 1 give the apparent visual wide variety of been the usage of names from a numbers from et al (1970). The designations include Mateer 1952), Vyssotsky et al. 1946; Vyssotsky and etric absolute magnitude as given by Gliese, and the with emission stars with hydrogen emission lines ; stars “dM.” lines due to calcium only are called most of the catalogs. In table 1 we have compiled given by Woolley designations used; further ones are (1917), Gliese tory, No. 18 and 20), Furuhjelm [Frjm] (1955) and other Thackeray 1905), Luyten [LFT] 1943, 1956; catalogs, McCormick [McC] (Vyssotsky 1 AND ABSTRACT Alfred H. Joy Helmut A. Abt 10 Received 1973 December Tucson, Arizona Kitt Peak National Observatory,* OF M DWARF STARS SPECTRAL TYPES I. SPECTRAL CLASSIFICATION Institute of Technology, Pasadena Carnegie Institution of Washington, California Hale Observatories, stars. strengths are given for 426 M dwarf system based on primarily TiO band Spectral types on a uniform parallaxes, is given. The measured width of the main-sequence of absolute magnitudes, based on trigonometric M’s steadily from ~ 5 percent among the early frequency of emission-line stars increases It is found that the the same within 0.07 mag at a given spectral type. A new calibration (dMe) and normal (dM) dwarfs average of the errors in classification, parallaxes, and photometry and to band can be accounted for mostly in terms — spectral classification Subject headings: late-type stars — luminosities than 0.3 mag. The R — / colors of dMe stars are larger by 0.08 ± some duplicity; the cosmic dispersion is less the B — V colors do not show this effect. 0.02(p.e.) mag than for dM stars, although for M5.5 and later. The absolute magnitudes of emission-line through ~50 percent at M4.5 to 100 percent Astrophysics Data System © American Astronomical Society • Provided by the NASA * Operated by the Association of Universities for Research been obtained Spectrograms of M dwarfs have 1947) of spectral Since the previous publication (Joy The spectral types given in table 1 for 426 M dwarfs -1 1 Foundation. Printed in U.S.A. Society. All rights reserved. American Astronomical © 1974. The of emission lines. The designation “dMe” refers to in Astronomy, Inc., under contract with the National Science determined were dependent on the presence or absence blue. All the stars, including the ones reported on stars observed McCormick (Vyssotsky) stars. The previously (Joy 1947), have been reclassified on a uniform system. Thus it is possible to consider the relative properties of dMe and dM stars because neither the selection of stars observed nor the spectral types are based mostly on the strengths of TiO bands in the mm and their resulting types of lower quality are with the Mount ones. The observations were made Wilson 60-inch (1.5-m) and 100-inch (2.5-m) telescopes mm ~ or higher ; a few stars were observed at 220 Â the northern M spectroscopically included most of and many fainter dwarfs brighter than F = 11 mag of absorption somewhat different view of the relation 252, 28:1-18 No. Series, Supplement Journal The Astrophysical Jr., M. L. Humason, and A. H. Joy. enclosed in brackets in table 1. Most of the spectrog- rams were obtained by Drs. W. S. Adams, E. R. Dyer, and Cassegrain spectrographs at dispersions of 100 Â except for the covered by their large proper motions (dM) and emission-line (dMe) dwarfs. during an systematically at the Hale Observatories recent additional spectral types, combined with the The resulting additional stars have been observed. dwarfs were dis- interval of 50 years. Most of those number of types of late-type dwarfs, a considerable present a parallaxes and photoelectric photometry,
PI''''8Z''•Srdv^^GI Type dMO dMO. 5 dMO dMO dMl dMO M. Spectral 7.78 B dMO.5 7.7 E dMO 9.5 PF dMO 8.29 C dMl 9.72 C dM2 9.4 E dMl.5 8.66 B dMO 8.0 F dMO.5 8.7 E dMle dM0.5 8.84 B 9.8 E dMl 15.8 C dM6e 15.27 B dM5.5e 12.4 F dM5.5e 13.81 C dM5e 10.34 A dM3.5 10.2 D dM2.5 10.0 E dMl 10.32 A dM2.5 10.42 B dM2.5 10.54 C dM3.5 13.29 A dM4.5e 2 1 Table Identifications Types and Spectral Magnitudes, Identifications, LFT 155, McC 381 , Yale 354 Yale 231 Ross 318, Yale 202 McC 365, Yale 217 LFT 75, Yale 155B Wolf 46, Yale 204 Wolf 44, Yale 201 Ross 5, Yale 45 LFT 47, Yale 86 Yale 107 Wolf 33, Yale 169 Yale 4 LFT 9, McC 217B, HD 38B, McC 85, Yale 49A Grmb 34A, LFT 31, Yale 49B Wolf 4, Yale 92.1 Astrophysics Data System © American Astronomical Society • Provided by the NASA (1900) 1 R.A. Dec!. 0 0 1 8.40 1:36.8 +63° 20 BD + 63°229 , 1 8C 238, 20C 121, GLS 69, HD 1 0436 , 12.95 1:34.0 -18 28 GLS 65B, LFT 145, L726-8B, UV Cet, Yale 343.IB 12.45 1:34.0 -18 28 GLS 65A, LFT 144, L726-8A, Yale 343.1A 9.66 1:12.1 +79 38 BD+79°38, GLS 56.4, McC 91, Yale 263 10.6 1:25.5 +77 34 AC+77°742, McC 92, Yale 312.1 11.6 1:07.5 -17 32 GLS 54.1, LFT 118, LPM 63, L725-32 11.2 1:03.4 +16 44 BD+16°120, 20C 82, GLS 53.2, LFT 114, Wolf 1515, 9.00 1:00.4 +63 24 BD+63°137, 18C 142, 20C 74, GLS 52, LFT 104, 95, Wolf 47, Yale 205 13.66 0:57.0 +61 50 20C 70, GLS 51, LFT GLS 49, LFT 94, McC 2, 9.57 0:56.3 +61 48 BD+61°195, 20C 68, 9.7 0:57.4 -10 57 BD-11°192, McC 3, Yale 208 10.9 0:57.2 +46 31 McC 90A, Yale 205.2 GLS 48, LFT 93, McC 364, 10.06 0:55.3 +71 09 AC+71°532, 20C 66, 20C 65, GLS 47, LFT 90A, 10.7 0:55.1 +60 50 AC+61°3275, AC+60°3496, McC 88, Yale 140 10.6 0:39.5 -1 9 29 BD-19°m, GLS 31.2, 20C 56B, n Cas B, GLS 34B, 7.51 0:43.0 +57 17 ADS 671B, BD+57°150B, 20C 60, GLS 38, LFT 80, 11.0 0:45.3 +57 45 AC+58°5535, AC+57°5559, Yale 120.1 10.7 0:36.4 -13 44 BD-13°116, McC 86, GLS 29.1, McC 87, Yale 125 10.38 0:37.3 +35 00 FF And, BD+34°106, GLS 26, LFT 57, Wolf 1056, 11.02 0:33.5 +30 04 AC+31°719, 20C 40, B, Yale 119B 10.02 0:35.7 - 7 47 ADS 566B, BD-8117 34, GLS 22A, 10.51 433A, ADS 440A, BD+66°34, 20C 0:26.3 +66 42 ADS McC 84 9.00 20C 16, GLS 14, LFT 28, 0:11.8 +40 23 BD+40°45, McC 218, 11.0 , AC+4119-173 , GLS 22.1, 0:27.7 +41 28 AC+42°23-87 34B, LFT 32, 11.04 246B, 18C 25B, GLS 15B, Grmb 0:12.7 +43 27 ADS 10.1 McC 83, Yale 32.1 0:08.0 +19 49 BD+19°20, 4B, 8.97 2, 20C 6s, GIS BD+45°4408B, 18C ADS 48B, 0:00.4 +45°16 19A, GLS 15A, 8.07 246A, BD+43°44, 18C 25A, 20C 0:12.7 +43 27 ADS
PI''''8Z''•Srdv^^GI Type dM 1 dMO dMO dMO. 5 dMO dMO. 5 M. Spectral dM1.5 8.4 D 9.3 C dM1.5 8.41 B dMl . 5 8.5 C 8.3 D dMl 7.6 C dMO.5 9.36 C dM2.5 8.2 F dMl 8.10 C dMl 7.8 D dMl.5 9.4 E dMl.5 9.5 E dM2 8.44 C dMO.5 9.5 C dMl 9.3 D dMO.5 dM 2 11.2 D 11.7 D dM4e 10.03 B dM2.5 10.1 E dMO 1 1 . 12 B dM3.5 12.37 A dM4.5 10.9 F dM3.5 13.0 E sdMO 3 (cont.) Table! Identifications Ross 791 , Yale 613 Yale 408 LFT 181 , Yale 433 9.10 LFT 255, McC 98, Yale 642 ^^O HD 1 5285 , McC 224, Yale 500 555 LFT 224, McC 400, Ross 556, Yale McC 4, Yale 392 Yale 603B Yale 363.1 McC 93, Wolf 124, Yale 450 Ross 584, Yale 865 LFT 259, McC 99, Yale 652 McC 396, Yale 520B McC 100, Wolf 1325, Yale 681 Lai 6429, LFT 284, McC 101, Yale 724 LFT 322, McC 226, Ross 23, Yale 861 Wolf 1248, Yale 808 Astrophysics Data System © American Astronomical Society • Provided by the NASA (1900) R.A. Dec!. 1 0 0 0 168, 8.8 HD 11507, LFT 20C 132, GLS 79, 56 CD-23°693, 1:48.0 -22 Ross 15, 12.1 AC+58°13565, GLS 82, 1:52.5 +58 14 AC+59°13164, 1851, 10.95 , GLS 70, LFT , AC + 3° 2259-31 3°48 AC + 4° 2595-239 1:38.2 + McC 95, 10.03 20C 153, GLS 87, LFT 187, 2:07.4 + 3 10 BD+2°348, GLS 84.2, 11.1 AC+45°91-61, 20C 146, 2:00.6 +44 43 AC+45°84-347, 20C 180, GLS 109, 10.58 2:38.4 +25 06 AC+26°6508, AC+25°7918, 9.41 GLS 96, McC 96, Yale 481 2:15.7 +47 24 BD+47°612, 11.2 McC 5, Yale 489.1 2:18.5 +49 21 AC+49°2493-285, 10.7 McC 94, Yale 398 1:51.0 +29 20 AC+29°4398, Yale 549B 9.87 2:37.4 +48 48 ADS 2081B, GLS 107B, GLS 105B, HD 16160B, LFT 218, 11.65 2:30.6 + 6 25 BD + 6°398B, 20C 175, 18C 319, GLS 98AB, r9.38 2:22.5 + 3 59 ADS 1865AB, BD+3°339, + 45 1 33-65 , 20C 210, GLS 125, 10.1 3:02.8 +45 22 AC+46°130 - 216 , AC McC 97, Yale 631 9.76 2:57.5 +75 40 AC+751146, GLS 122, 20C 207, GLS 123, HD 19305, 3:01.2 + 1 36 BD+1°543, 18C 404, 18C 377B, GLS 118.2B, 9.80 2:49.7 +26 28 ADS 2218B, BD+26°484B, 196, GLS 120, LFT 242 , 1 2.2 2:52.0 +1 0 24 AC+10°22-1 81 , 20C 9.04 3:49.7 - 7° 08' BD-7°699 , 20C 270 , GLS 156, LFT 321, McC 434 , 10.2 3:48.8 +43 03 ADS 2861AB, BD+42°849, McC 227, Yale 859.1 10.86 3:49.1 +53 1 7 AC + 54°2553-90, AC + 53°2250-45A, 20C 271, GLS 156.1A, 8.37 3:23.3 -20 10 BD-20°643, 18C 456, 20C 237, GLS 142, HD 21531, 11.1 3:28.6 +34 17 AC+34344-129, McC 102, Yale 744.1 10.28 3:11.6 +37 54 BD+37°748, 20C 221, GLS 134, HD 275122, LFT 271, Ross 345, Yale 660 10.1 3:07.4 +51 59 BD+51°697, 20C 213, LFT 262, Wolf 134, Yale 662 14.30 3:07.6 +18 29 20C 212, GLS 129, 10.7 3:38.0 +34 39 BD+34°724, McC 103, Yale 775 HD 20280, McC 225, Yale 676.1 9.13 3:10.4 -26 49 CD-26°1207, GLS 131, 9.57 3:40.3 +25 54 BD+25°613, 20C 259, GLS 154, HD 23453, McC 104,
PI''''8Z''•Srdv^^GI Type dMO dMl .5 dMO dMO. 5 (dMOe) (dMl.5e ) (dM3e) (dMOe) (dMOe) (dMle) (dM2.5e) (dMle) ( d M 2 . 5 e ) (dM2e) (dMle) (dM2e) (dMle) (dM2e) (dMle) M Spectral t 9.0 C dMO.5 9.04 B dMl 8.1 E dMO.5 8.8 E dMO.Se 9.87 B dM2.5e 9.3 D dMO.5 7.7 D dMO 8.45 B dMl 8.1 E dMO 11.5 C dM3.5e 10.3 D dM2 dM3e 11.5 D 11.2 F dM4 12.73 A dM4e 3 3 16.1 15.0 14.7 27 15.0 7 0 6 9.29 11.0 11.48 11.17 12.6 14.5-15.4 13.4-15.2 14.3-15.5 15.0-15.6 15.8-17.4 1 (cont.) Table Identifications 0 0 0 0 0 BD-211051A , GLS 185A, HD 32450 , McC 112, 8.45 Yale 1117.1 Ross 33, Yale 1046 McC 232, Yale 1110.1 10.6 BD+52°911 , GLS 184, LFT 383 , McC 110, Yale 1 1 23 9.93 Yale 1135 BD+18° 683, 20C 303 , GLS 176, LFT 372 , McC 107, 9.94 AC+2° 2283-259 , AC+1 1 951 - 1 03 , GLS 182, McC 111, 9.6 13, UZ Tau A 13, UZ Tau B LFT 362, McC 449, Yale 1010 MHa 257-7, DQ Tau 14.0-15.0 13. UX Tau B GLS 179, Ross 401, Wolf 1539, Yale 1088.1 12.0 BD+49°1 280 , GLS 181, McC 109, Yale 1 1 03 9.79 1 026 1 0.4 B D-11° 916 , GLS 173, McC 106, Yale MHa 259-19, DP Tau 13.7-15.4 , LFT 325 , Ross 873 , Wolf 1 322 20C 275 , GLS 157.1, 13.1- MHa 259-17, AA Tau 172, HD 232979 , 8.61 BD+52°857 , 1 8C 594 , 20C 298, GLS 13.8- MHa 259-8, DE Tau 873B HD 24916B, Yale Yale 879.1 10. AC+3°2328-36, McC 231 954.1 9. BD+47°977, GLS 168, McC 229, Yale 10. AC+2610592, McC 230 8, Yale 990 8. BD+21 652 , GLS 169, HD 28343 , McC 13.4- MHa 259-9n , DH Tau 13.4-15.9 MHa 259-9S, DI Tau 40 Eri C, GLS 166C, LFT 340, ADS 3093C, BD-7°781C, Yale 9450 MHa 259-5, CY Tau 11.7- AC+ 251 21 59 , MHa 259-1 1 , DF Tau 870 , McC 105, Yale AC+82°779 MHa 259-22, CX Tau MHa 259-23, FP Tau MHa 259- 6ft, CZ Tau 534B, GLS 157B, BD-1°565B, 18C ADS 2894B, Tau MHa 259-6br , DD + 24 16 + 25 40 + 52 42 +26 20s + 18 00 + 25 40 + 3 56 +26 20n + 27 41 + 25 29 + 26 01 + 21 41 + 48 06 + 28 06 + 28 02 + 28 02 Astrophysics Data System © American Astronomical Society • Provided by the NASA (1900) . R.A. Decl 0 4:58.2 -21 24 4:59.0 -Z3Z3' CD-23°2363, GLS 186, McC 113, Yale 1138.1 4:54.4 + 1 36 4:55.0 +53 03 4:50.8 +49 42 4:52.0 +48 37 4:41.1 +16 49 4:46.7 + 6 19 4:26.6 4:23.6 4:10.7 - 7 49 1 26 3:52.5 - 3:53.8 +25 49 38' 3:52.0 +82° 4:37.0 +18 47 4:29.8 4:33.0 -11 14, 4:27.3 4:28.9 4:24.2 4:26.6 4:22.4 4:23.1 4:11.4 4:08.7 +26 33 4:08.7 +26 31 4:36.5 +25 04 4:21.0 4:14.2 4:12.4 4:12.4 4:23.6 4:15.7
PI''''8Z''•Srdv^^GI Type dMO . 5 dMO dMl dMl dMl . 5 dMO. 5 Spectral M. 9.33 B dM2.5 9.6 D dMl.5 8.6 E dMO 9.12 A dM3 9.62 C dMl dM2 . 5 9.55 B 9.0 D dMO.5 9.1 8.6 D dMl.5 9.4 10.8 E dM2.5e 10.73 C dM4e 10.65 B dM2.5 12.73 A sdM4.5 12.62 B dM5e 11 .98 A dM4 11.48 B dM4.5e 10.32 B dM3.5e 7.97 9.4 8.1 3 9.63 9.71 B dMl 9.90 11.03 A dM3.5 9.78 9.70 9.74 9.07 8.26 B dMle 9.82 10.20 10.57 11.07 13.08 A dM4.5e 11.5 (dMOe) 16.1-16.8 11.0 dM3.5 10.4 10.9 10.8 11.50 11.68 11.60 10.0 11.20 12.29 B dM4.5e 10.60 11.76 11.48 10.03 10.79 5 ) 1 (cont. Table Identifications 0 0 0 0 0 C 477, Wolf 287, BD+17°1320, 20C 393, GLS 239, LFT 611, Yale 1614 BD+12 °1 343 , GLS 251.1, McC 12, Ross Ross 47, Yale 1305 Ross 7 9A , Yale 1426 LFT 459, McC 471, Yale 1430 RW Aur B Yale 1538 1609 LFT 497, McC 482, Wolf 294, Yale 229 , HD 42581, BD- 21 1 377 , 1 8C 771 , 20C 377 , GLS 614A, Yale 1509 20C 390, GLS 234A, LFT 473, Ross , 20C 334 , GLS 205 , HD 36395 , BD-3°1123, 18C 705 Ross 989, Yale 1774B LFT 547, Ross 882, Yale 1827 Yale 1616 BD + 40° 1 758B, 18C 837B, 20C 402B , 1624 BD + 30° 1 367A, GLS 254 , McC 13, Yale Ross 986, Yale 1668 Yale 1291 Yale 1213.1 Yale 1255 LFT 416, McC 9, Yale 1259 GLS 206, Ross 42, GLS 212, LFT 424 , McC 465 , BD+ 53°935 , 20C 342B, BD+36°1638A, 20C 426A, GLS 277A, McC 246A, 400, GLS 251, AC+34°366-B93, AC+33°25644, 20C BD+33°1 505, 20C 418, GLS 270 , LFT 522 , McC 16, Yale 1715 1353 BD-6°1 339 , GLS 221, McC 10, Yale AC+ 72 31 30 , McC 233 LFT 458, McC 236 , BD+1 0 1 032A, 20C 375A, GLS 228A, Yale 1193 a Aur H, GLS 195A, Ori MHa 265-5, V442 Ori , Yale 1 266.1 GLS 207.1 , V371 AC+ 6 8° 312 4, GLS 275.1 , McC 245, Yale 1 753.1 BD+5° 1 668 , GLS 273 , LFT 527 , McC 17, Yale 1755 1546 AC+72 3338 , LFT 480, McC 238, Yale LFT 425 , AC+1 2 1 800-21 3 , 20C 344 , GLS 213, Yale 1397 AC+23°406-689, McC 115, Ross 61, H, 7-363AB , ADS 3841 - 161 AB , AC + 45°21 AC + 46° 221 199A, HD 34751 , McC 114, BD-21°1131 A, GLS Yale 1 7 74A B D+36° 1 638B, 20C 426B, GLS 277B, McC 246B , ADS 6175C, B D+ 32° 1 582, YY Gem, GLS 278C, Yale 1 785C AC+4°2371-641, AC+3°2375-222, YZ CMi, GLS 285, AC+39 26259 , AC+38°2361 6, GLS 268 , LFT 512, Astrophysics Data System © American Astronomical Society • Provided by the NASA (1900) R.A. Dec!. 5:54.6 +72 10 5:48.1 - 6 00 5:36.4 +12 29 6:48.4 +33 24 5:57.9 +23 01 5:33.4 +53 27 5:26.7 + 9 45 5:28.6 + 1 53 5:23.9 +12 52 5:26.4 - 3 42 44 5:10.0 +45 5:14.6 -21 30 7:39.4 + 7:28.2 +32 06 7:22.0 + 5 31 7:25.4 +36 26 7:13.0 +33 02 6:30.6 +30 54 7:03.3 +38 43 6:49.3 +12 18 6:24.3 - 2 44 6:31.5 +17 38 6:06.4 -21 49 6:05.4 +10 22 5:01.4 +30°16' 7:25.4 +36 26 7:21.8 +68 50 6:49.5 +40 13 6:32.9 +72 00
PI''''8Z''•Srdv^^GI Type M, Spectral 9.2 dMO 7.62 8.72 A dMO.5 7.72 8.82 A dMO.5 9.9 8.9 D dMl 9.7 dMO 1 8.90 8.70 B dMl 9.6 dMO 8.68 8.48 B dMl dMl 9.30 8.8 C dMO 9.54 8.1 E dMl 9.70 8.7 C 10.00 9.54 C dM2 10.7 9.6 D dMl.5 1 0.40 9.8 C d M 2.5 10.23 9.3 C dM2 10.2 dMO 12.70 11.4 F dM4.5 10.8 , 9.9 L dMl 12.38 11.1 F dM4. 5 11.1 10.2 E 11 11.0 dMO.5 dMO.Se 10.3 dM5 12.77 13.66 B dMO 10.7 9.5 F dMO 10.2 10.5 dMl 10.3 dMO dMO 10.2 dM3e 11.4 .12.4 12.0 D dM 3.5 1 2.7 1 2.3 D r 6 ) 1 (cent. Table Identifications h 0 0 0 0 0 0 0 Ross 434, Yale 2302 BD-11° 2741 , 1 8C 1 1 67 , 20C 550 , GLS 369 , LFT 685 , LFT 670, McC 551, Ross 85, Yale 2298 AC+76°3952, 20C 545, GLS 366, LFT 679, McC 120, McC 27, WB 9954, Yale 2334 B D+ 2 3° 2121 , McC 270 , Ross 89 AC + 14° 226- 1 33 , AC+13° 1 301 - 1 1 9 , 20C 540 , GLS 361, BD+36°1 970 , 20C 532 , GLS 353 , LFT 655 , McC 548, Yale 2262 LFT 634, McC 541, Yale 2198A LFT 635, McC 541 , Yale 2198B Yale 2154.IB ADS 7 2 51 B , BD+53 1 321 , GLS 338B, HD 7921 1 , Ross 2404BC, Yale 2143BC Ross 623, Yale 2132 Ross 686, ADS 7138A, 20C 504, GLS 333.2A, Yale 2154.1A ADS 72 51 A , B D+53° 1 320 , GLS 338A, HD 7921 0 , LFT 620, ADS 7114BC, BD+481707B, GLS 331BC, B D + 2 ° 2 1 16, McC 262 , Yale 2149.1 Ross 687, ADS 7138B, 20C 505, GLS 333.2B, BD+35°1890, McC 258, Yale 2118.1 616, McC 537 , B D+ 2° 209 8 , 20C 498, GLS 328 , LFT 2113B GLS 325B, LFT 613, McC 532, Yale BD+1 1 1 940 , McC 2 59 , Yale 2129.2 532, Yale 2113A GLS 325A, HD 75632, LFT 612, McC 2128 GLS 326AB, LFT 614, L PM 299A, Yale Yale 2104 20C 495B, ADS 7067B, BD+71°482B, 18C 1040B, 24, Ross 682 , BD + 7° 2031 , 20 C 489, LFT 604, McC 20C 495A, ADS 7067A, BD + 71°482A, 18C 1040A, 986, GLS 305.1, McC 22, Yale 1991 BD+22°1921, 18C Yale 2078 2103 B D+ 37 1 91 2, 20 C 490, L FT 605 , Yale AC + 29 26222 , McC 117 , L FT 569 , Ross 619, Yale 1942 20 C 462 , GLS 299 Yale 2037 , 484, GLS 319A, L FT 601, McC 257 BD+1 0 1 857A, 20 C 1925 6A, McC 250, Yale BD+33164 BD+33°1646B 21, Yale 1982 B0+14° 1 876, McC , GLS 310, L FT 593 , McC 254 , BD + 67° 552 , 20C 475 20 GLS 301B, LFT 572B, McC ADS 6664B, BD-13°2439B, Yale 1 906.1 3-242 , McC 249 , AC+ 33° 21 Astrophysics Data System © American Astronomical Society • Provided by the NASA (1900) 0 R.A. Dec!. 9:46.2 - 1 1 49 ' 9:36.4 +76 31 9:35.8 +13 40 9:31.5 +23 09 9:25.8 +36 46 9:07.6 +53 07 8:55.5 + 5 38 9:07.6 +53 07 8:55.5 + 5 39 8:52.4 +48 26 8:53.8 + 2 14 8:49.9 + 1 57 8:49.4 +11 32 8:49.2 -12 45 8:46.0 +71 11 8:46.0 +71 11 8:47.6 +35 37 8:43.2 +29 24 8:43.1 + 6 51 8:37.3 + 9 56 8:43.0 +36 53 8:27.4 +67 38 8:17.6 +22 11 8:08.4 -13 36 33° 53' 7:56.8 + 8:15.3 +14 24 8:02.6 +33 06 8:06.5 + 9 11 06 8:02.6 +33
PI''''8Z''•Srdv^^GI Type dMO . 5 dMO dMOe dMO . 5 dMO dMO dMO. 5 dMOe 7.7 C dMO.5 7.9 C dMl d M1 .5 8.6 C 9.2 C dMl 9.5 C dM2.5 8.32 A dMO 8.0 F dMO 8.3 E dMO 8.9 D dM2 8.4 E dMO.5 8.0 D dMO.5 10.49 A dM2 10. 12 B dM2 10.5 F dM2 12.42 B dM5 16.68 A dM6.5e 10.4 F dM2 11.9 D dM4e 15.88 B dM5.5e 10.98 A dM3.5e 10.20 C dM2.5 10.5 7 ) 1 (cont. Table Identifications 0 0 0 0 0 h 0 0 0 h Ross 446, Yale 2456 95735, Lai 21185, 7.50 BD+36°2147, 20C 604, GLS 411, HD 2460.1 9.9 BD+571274, GLS 397.1, McC 31, Yale Yale 2462 358 , Yale 2524 1 1.66 20C 591, GLS 402 , LFT 742, Wolf 10.8 , McC 122 BD+ 33 1 931 6.59 1218, 20C 564, GLS 380, Grmb 1618, BD+50°1725, 18C Yale 2390 HD 88230, L FT 696, , Yale 2397 LFT 702 , McC 567 FT 752 , McC 34, 10.30 BD+70°639, 20C 598, GLS 406.1 , L Ross 447, Yale 2549 359 , Yale 2553 1 3.53 20 C 600, GLS 4 06 , L FT 750 , Wolf LFT 756, Yale 2576 Lai 21 258 , LFT 7 57 , McC 35, Yale 2582 1 0.5 BD+12° 2201 , McC 274 721, McC 32, 8.85 BD+46° 1 635 , 20C 582 , GLS 397 , L FT 121, 8.99 373, L FT 688, McC , 20C 553 , GLS BD+63 869 Yale 2345 9.52 1225, 20C 566, GLS 383.1, HD 233719, BD+531395, 18C 9.4 28, Yale 2403.1 A BD+40 2309 , McC BD-14° 32 77 , 1 8C 1 364 , 20C 616, GLS 416, HD 97233 , 9.03 L FT 774, McC 602, WB ll49, Yale 2604 129, Yale 2574 9.52 BD + 22°2302, GLS 410, HD 95650, McC 412A, 8.77 BD+44°2051, 18C 1349, 20C 606, GLS 719, McC 127, 9.63 B D+1 244 7 , 20C 580, GLS 393, L FT 2480 1 2.61 GLS 398, L1113-55 , LFT 72 5 , Tale 2531.1 1 0.0 BD-1° 245 7 , L FT 745 , McC 276 , Yale 9.43 1244, 20C 574, GLS 388, AD Leo, BD+20°2465, 18C AC + 44472-1 5A , 20C 615A, Frjm 31, GLS 414.1A, 11.4 1 0.5 AC+1°201 3-63, L FT 746 , McC 275 GLS 414A, HD 97101, L FT 767 , McC 600, Yale 2600A McC 33, Yale 2509.1 9.30 ADS 7 915A, BD+39°2376 , GLS 400A, 9.9 124, Yale 2399.1 AC + 22 21 4- 1 29, McC 9.9 29, Yale 2403.IB AC + 40 °428-42, McC 4, Yale 2420 McC 574, WB 1023 ADS 8083B, BD+31°2240B, 18C 13618, 20C 613B, 10.00 GLS 414B, L FT 768 , Yale 2600B McC 36, Yale 2600.1 A AC + 44°472- 1 5B , 20C 615B, GLS 414.IB, Yale 2600.IB 11.5 GLS 412B , LFT 758 , WX UMa 14.53 ADS 8083A, BD+31°2240A, 18C 1361A, 20C 613A, 8.38 (1900) Astrophysics Data System © American Astronomical Society • Provided by the NASA 1, R.A. Dec 1 3°16 9:48.8 +6 01 34 9:53.9 +33 II : 05.6 +31 00 11:00.5 +44 02 10:57.9 +36 38 10:51.6 +07 37 10:47.5 -01 34 10:47.6 +00 59 10:39.6 +39 02 10:23.9 +01 22 I 0:1 4.2 +20 2 10:17.0 +12 40 10:09.1 +40 00 10:07.5 +53 01 10:08.8 +21 37 1 1:06.9 +1 9 34 BD+19° 2427, McC 281 11:05.8 +43 58 1 1 : 06.4 - 1 4 26 11:05.8 +43 58 11:05.6 +31 00 11:00.5 +44 02 10:57.3 +22 30 10:51.0 +70 08 10:45.8 +07 22 10:25.5 +46 03 10:25.2 +57 38 10:09.2 +40 01 10:05.3 +49 58 10:30.9 +05 38
PI''''8Z''•Srdv^^GI Type dMO.5 dMO dMO dMl . 5 dMO dMO dMO dMl dMO s dMO.5 Mt Spectral 9.0 C dMl 8.9 E dM2 dM0.5 8.9 C 9.70 B dMl.5 9.1 E dM2 8.7 E dMO.5 9.0 C dM0.5 9.2 E dM2 6.7 F dMO 9.3 E dMl 9.7 E dMl 9.3 D dMl.5 10.4 E dM4 15.2 B 14.98 A dM5.5e 11.9 C dM4.5 11.5 D dM4 10.9 C dM3.5 12.38 B dM4 13.50 A dM4.5 10.3 D dM2 { 9.78 9.48 9.96 9.8 9.86 9.32 9.9 9.0 9.6 10.3 11.3 10.6 11.7 10.05 10.62 10.6 10.4 12.00 10. 10.92 11.10 11.30 11.5 10.2 10.0 10.5 12.3 10.0 10.68 M 3.4 ,13.16 8 ) 1 (cont. Table Identifications 0 0 0 0 0 0 0 0 0 20C 711, GLS 469, LFT 914, Wolf 414, Yale 2877 20C 726, GLS 480, LFT 933, Wolf 433, Yale 2915 621A, GLS 421B, LFT 780, McC 37B, BD-17° 3337 , 20C BD+4° 2612, McC 41 McC 296 Ross 903, Yale 2664 McC 37A, 421A, LFT 779, 20C 621B, GLS BD-17°3336, Yale 2618A 383, 20C 629 , GLS 424 , LFT 795 , BD+66 71 7 , 1 8C 1 2OC 703 , GLS 465 , LFT 904 , Ross 695 , Yale 2857 BD+92636 , 20C 713, GLS 471, LFT 919, McC 662 , LFT 894, McC 138, Ross 917 BD+1 2684 , GLS 461 , McC 293 462 , HD 1 07596, BD+42° 2296 , 1 8C 1 551 , 20C 697 , GLS , McC 132, Yale 2662 BD+63 965 , GLS 430 McC 133, BD+23 2359 , GLS 430.1, LFT 820, Yale 2618B 2795 LFT 881, McC 290, Wolf 406, Yale 2811 BD+551519, GLS 458A, McC 137, Yale McC 294, Yale 2853.1 2697 2OC 655 , LFT 834 , Ross 451, Yale Ross 128, 20C 662, GLS 447, LFT 852, McC 286, Yale 2730 Yale 2631 McC 38, SZ UMa, Wolf 386, Yale 2641 20C 632 , LFT 798, Wolf 417, Yale 2885 LFT 896 , McC 644 , BD+29° 2279 , 20C 695 , GLS 459.3, LFT 898, McC 649, WB 12h309, Yale 2846 B D+28° 2110 , McC 139, Yale 2850.1 AC+13°1308-25, BD+13°2529a, GLS 464, HD 107888, ADS 8242B, BD+48°1958B, McC 283 McC 616, Ross 905, Yale 2704.1 2722 AC+ 79 3888 , GLS 445, LFT 849, Yale BD+36 221 9 , GLS 450 , McC 135 130 AC + 8° 86-89, McC 39, Yale 2643.1 AC + 40 477-39 , McC 1412, 20C 641sf, LFT 813, McC 131, AC+8° 86-62 , 1 8C Wolf 397, Yale 2654 684, GLS 456 , AC + 1°2051 -85, AC + 0°1 51 4-64, 20C LFT 838, AC+28°33032, AC+27°28217, GLS 436, Wolf 408, Yale 2838 (1900) Astrophysics Data System © American Astronomical Society • Provided by the NASA R.A. Decl. 1 12:30.8 +34 35 12:34.0 +12 °15 12:26.2 +09 22 12:23.9 +08 59 12:19.1 +04 29 12:17.6 +28 10 12:15.3 +01 08 12:28.4 +09 34 20C 716, GLS 473AB, LFT 923, Wolf 424AB, Yale 2890 12:19.5 -17 38 12:18.8 +13 08 12:16.9 +42 42 12:14.5 +28 56 12:03.3 +00 03 11:19.5 +40 31 11:14.8 +66 23 -17° 35' 11:10.4 12:12.9 +47 10 11:42.6 +01 23 11:31.9 +48 01 1 1 : 26.6 +23 1 3 1 1 :1 8.7 +09 06 1 1 : 23.3 +08 06 11:18.3 +07 37 11:10.4 -17 35 12:07.4 +55 09 1 1 : 46.0 +35 48 11:41.3 +79 14 11:34.7 +67 53 1 1 : 36.9 +27 1 7 1 1 : 25 . 5 +63 42
PI''''8Z''•Srdv^^GI Type dMl . 5 dM5e dMO. 5 dM2 Spectral M, 9.2 D dMl 9.1 D dMl 8.8 D dMO.5 9.0 D dMl 9.1 E dM2 9.3 E dMl 8.9 E dMO.5 9.7 F dMl.5 dM0.5 8.31 B 9.4 D dM1.5e 9.65 B dMO.5 8.5 D dM0.5 9.1 E dMl.5e 8.3 E dMO 8.7 E dMO 9.3 D dMl.5 9.5 E dMl.5 . 10.0 D dM2 dM4.5 11.6 C 10.9 C dM4 11.1 E dM3.5e 11.4 E dM4e 11.9 D dM3.5e 12.1 E dM3.5 9.30 B dMl . 5 MO.l C r 9 ) 1 (cont. Table Identifications { 0 0 0 1 0 0 0 301, Yale 3061A 509A, HD 1 1 6495, LFT 1001A, McC Ross 1008, Yale 3053.1 486A, Yale 3974A 11.24 20C 780, GLS 512A, LFT 1007, Ross Ross 490, Yale 3079 Yale 3047A 5 07A, LFT 992 , McC 46A, WB 13h241A, Yale 3047.1 2943 1 1.40 , Wolf 437, Yale GLS 486, LFT 947 20C 737 , 9.8 McC 142, Yale 3048.1 McC 47, 10.71 BD+35 2439 , GLS 508.2 , LFT 996 , McC 675 , 8.51 488, HD 111631, , 1 80 1 633 , GLS BU + 0 2989 10.60 490A, McC 298 BD+36°2322A, GLS 13.16 490B BD+36°2322B, GLS 9.81 661, 20C 753 , GLS 493, HD 1 1 2943, BD-1° 27 54 , 1 8C 1 13.34 , L FT 962 , Wolf 461 20C 754 , GLS 493.1 9.79 755 , GLS 494 , LFT 964, McC 140, BD+13° 2618, 2 OC Ross 458 BD+0°3077, McC 42 9.7 BD + 36 2393 , GLS 519, McC 49, Yale 3116.1 9.07 BD + 0° 3090 , 20C 795 , GLS 522 , HD 119217, McC 50, 9.7 20C 777, GLS 9.56 ADS 8887A, BD+29°2405A, 18C 1730, Yale 3061B Yale 2951 Yale 2978 LFT 961 , McC 43, 9.44 499A, McC 141, Yale 2993.1 BD+21° 2486 , GLS LFT 1026, McC 146, Yale 3121 BD + 46° 1 889 , GLS 521, McC 305, Yale 3122.1 10.0 Yale 3126.1 , LFT 1001B, 9.8 ADS 8887B, BD+29°2405B, GLS 509B Yale 3094A BD+5°2767, McC 48, Wolf 1487, Yale 3099.1 9.7 20C 767B, 9.6 ADS 8841 B, BD+17° 2611 B , 18C 1712B, GLS 505B, LFT 989 , Yale 3035B LFT 993 , 1 2.09 ADS 8861 B, BD+35°2436B, GLS 507B, McC 46B , WB 1 3*241 B , Yale 3047B BD-3° 3508 , 20C 794 , GLS 521.1, HD 1 1 8926, 9.60 1012, McC 143, 9.06 B D+ 1 1 2 5 7 6 , 20C 782 , GLS 514, LFT AC+18°1204-96A, VW Com, GLS 516A, McC 144A, 12.00 AC+18°1204-96B, GLS 516B, McC 144B, Yale 3094.IB 12.3 20C 771, GLS 9.52 ADS 8861A, BD+35 2436A , 18C 1719, Ross 1 007 , 1 0.6 AC + 33 38922 , GLS 507.1 , McC 45, HD 115953, 8.96 ADS 8862AB, BD+48°2108, GLS 508AB, ADS 8980A, BD+48°2138A, GLS 520A, McC 303A 10.1 ADS 8980B, BD+48°2138B, GLS 520B, McC 303B 11.0 1 0.5 AC+37° 30242 , McC 44, Yale 3040 (1900) Astrophysics Data System © American Astronomical Society • Provided by the NASA R.A. Decl 1 0 13:15.0 +33 53 13:14.9 +35 40 13:13.5 +36 52 12:53.0 +35 46 13:30.3 +00 05 13:16.3 +34 49 13:18.9 +29 45 13:15.5 +48 19 13:14.9 +35 40 13:01.4+21 16 13:11.9 +17 33 12:55.8 +12 53 12:53.0 +35 46 12:55.2 -02 10 13 12:45.6 -00 12:43.0 +10°19 13:35.3 +46 42 1 3:36.8 +00 23' 13:33.8 +48 39 13:33.0 +36 14 13:29.4 +05 11 13:28.0 +1717 13:28.0 +1717 13:23.2 -01 50 13:24.9 +10 55 13:18.9 +29 45 12:55.6 +06 13 13:35.0 -03 42 13:33.8 +48 39
PI''''8Z''•Srdv^^GI Type dMO dMO. 5 dMO. 5 dM5e dMO dMO dMO M Spectral t 7.9 D dMO.5 8.1 E dMO.5 9.0 C dMl.5 8.0 D dMl.5 9.6 C dM2.5 8.8 C dMl 9.5 E dM3 7.67 C dMO 9.5 C dM2 9.5 D dMO.5 9.4 E dMO dMl 9.76 C { dMl 8.7 E 9.0 D dMO 9.2 E dMl r 8.3 F dMO.5 12.8 D dM4 10.0 C dM2.5 S.b F 10.02 A dM3 9.4 10 ) 1 (cont. Table Identifications 0 h 0 l D dMO BD+17° 2785 , 1 8C 1 948, 20C 884, GLS 562 , LFT 1 1 38 , 9.27 8.56 Ross 130, Yale 3283 BD+34 2541 , 1 8C 1 920 , 20C 872 , GLS 558, LFT 1123, 9.56 dMO BD+22° 2742 , McC 156, Yale 3332.1 9.9 McC 722, WB 14847, Yale 3343 BD+24°2735, 20C 860, GLS 550.1, LFT 1108, 10.91 BD+16°2658, 20C 863, GLS 552, LFT 1111, McC 718, 10.68 BD-7° 3856 , 1 8C 1 905, 20C 864 , GLS 553 , HD 1 27339 , 9.40 McC 313, Yale 3302 848, Yale 3256.1 13.02 20C 851, GLS 545, LFT 1094, Ross 546 , Lai 26294 , 8.54 BD+30°2512, 18C 1 885 , 20C 854 , GLS 20C 856 , 9.71 BD+24° 2733 , $GC 6869A, 18C 1 894 , McC 154, Yale 3280 LFT 1112, McC 719, Yale 3285 845 1 3.5 20C 837 , GLS 540.2 , LFT 1 079 , Ross LFT 1098, McC 312, Yale 3262 3273A GLS 548A, LFT 1105, McC 153A, Yale ßGC 6869B, 18C 1895, 20C 857, GLS 548B, LFT 1106, 9.97 Ross 835, Yale 3174 10.4 BD+4521 47 , McC 54, Yale 3195.1 8.15 813, GLS 529 , HD 1 20467, L FT 1041, BD-21°3781 , 20C Yale 3237 McC 153B, Yale 3273B 9.81 821, GLS 533 , LFT 1 048, McC 53, BD+13°2721 , 20C ll.0 McC 149, Yale 3198.1 LFT 1065 , McC 706A, Yale 3200A 1 0.4 BD+26°2536 , McC 151, Yale 3224.1 9.9 L FT 1 038, McC 698 , Wolf 504, BD+7° 2692 , 20C 808, 1 073 , McC 152, 10.3 BD+81°465 , 20C 838, GLS 540, L FT GLS 537B, 9.95 ADS 9090B , BD+47° 2112B , 20C 829B, LFT 1 066 , McC 706B, Yale 3200B 10.2 51, Yale 3131.2 , GLS 524.1 , McC BD-3°3527 L FT 1031, 9.83 801, GLS 525 , , 1 8C 1 784 , 20C BD+18° 2776 , 8.50 1 786 , 20C 803 , GLS 526 , HD 1 1 9850 BD+15° 2620 , 1 8C 034 , McC 308 , Wolf 498, Yale 3135 Lai 25372 , LFT 1 Yale 3140B Yale 3187.1 10.6 AC+79°4347 , GLS 534.2 , McC 148, 536.1AB, rl0.-8 AC+1 7° 421 - 1 08 , AC+ 16°799-62A, GLS 10.0 AC+14°1105-9 , McC 150 GLS 537A, 9.85 ADS 9090A, BD+47° 2112A , 20C 829A, Yale 3133 McC 307, Wolf 497, 10.5 52 AC+3° 2448-85 , McC 10.7 GLS 527B, Yale 3144B ADS 9025B, 20C 807B, Yale 3154 (1900) Astrophysics Data System © American Astronomical Society • Provided by the NASA R.A. Dec!. 1 1 14:41.7 +16° 57 14:23.3 +24 18 14:39.6 +22 36 14:30.9 +34 11 14:38.0 +19 55 ADS 9352AB, BD+20°3010, McC 155AB, Yale 3326AB 14:25.7 -08 12 14:24.8 +15 58 14:21.1 +24 06 14:21.1 +24 06 14:17.6 +30 06 14:10.3 +81 05 14:14.8 -09 09 14:07.8 -11 33 13:58.5 +46 49 14:07.0 +26 40 13:58.5 +46 49 13:57.2 +16 00 13:57.5 +14 12 13:54.2 +79 24 13:56.2 +45 19 13:40.7 +15 26 20 13:40.2 +18 -04°07 1 3:39.9 13:42.5 +17 57 13:44.5 -21 36 13:42.0 +06 51 13:40.2 +02 37 13:49.8 +13 20
PI''''8Z''•Srdv^^GI Type dM4 dMO dM3e dMO dMO. 5 dMO dMO M-(- Spectral 9.87 B dM3 9.4 E dM2 7.2 F dMO 9.9 E dMl.5 8.3 E dMl 8.8 E dMO 8.4 E dM1.5e 8.37 B dMO 8.19 C dMO.5 8.3 D dMO 8.65 E dMO 9.32 C dMO.5 dM2 9.21 B 8.0 D dM0.5 10.8 B 10.97 B dM3 12.10 A dM4.5 10.2 E dM2 11.50 A dM4 dM2e 10.1 C 10.79 A dM3.5e f 9.8 9.76 11 ) 1 (cont. Table Identifications 0 0 h 0 0 152751, LFT 1310, McC 782, WB 16^906, Wolf 630, Ross 644, Yale 3841 BD+25°31 73 , 20C 1014, GLS 649 , LFT 1313, McC 785 , 9.72 Ross 860, Yale 3857 3705 Yale 3845AB BD-8°4352C, GLS 643, LFT 1311, Wolf 629, Yale 3844 11.70 9.94 201 2 , 20C 909 , GLS 579 , LFT 1171, BD+25 2874 , 1 8C Yale 3457B 9.7 BD+2°2944B, 20C 922B, HD 1 36202B, 1195, McC 159, 10.58 BD-7°4003, 20C 923, GLS 581, LFT 3471 9.47 BD-4° 387 3 , GLS 583 , McC 58, Yale 3591.1 9.38 BD+11° 2874, GLS 600 , McC 318, Yale LFT 1249, McC 59, 10.45 BD+35°2774, 20C 968, GLS 612.1, Yale 3655 McC 161, Yale 9.96 BD+55°1823, GLS 616.2, LFT 1261, 617A, HD 1 47379 , 8.62 BD+67 935A, 18C 21 84 , 20C 981, GLS 3712A Lai 29917, LFT 1263, McC 162, Yale 3733 L1707-1, LFT 1273, McC 163, Yale BD-12°4523, 20C 995 , GLS 628 , LFT 1 283 , McC 164, 10.12 BD+33°2777, 18C 2238, GLS 638, HD 151288, 8.11 736 , Wolf 561, 10.0 BD-3° 3746, 20C 920 , LFT 1186, McC 9.13 1996, 20C 904, GLS 572, McC 314, BD+45°2247, 18C AC + 13°804-1 61 , AC+12°1155-87, GLS 642 , LFT 1 309 , 1 1.1 BD-8°4352AB, 18C 2251 , 20C 1013, GLS 644AB, HD BD-4°4226 , 20C 1018, GLS 654 , LFT 1317, McC 787B, 10.07 11.6 GLS 611.3, L1130-30A Wolf 1061 , Yale 3746 WB 161259, Yale 3815 McC 57, Yale 3419 Yale 3439 10.0 AC+15°647-70, McC 160, Yale 3518 10.9 AC+32°105-80, McC 316, Yale 3554.1 10.20 157, Yale 3372 GLS 569, McC BD+16°2708, 9.49 1 989, 20C 903 , GLS 571.1, BD-10° 4011 , 18C WB 14h989, Yale 3386 HD 132683, McC 55, Yale 3394 9.87 , LFT 1168, McC 158, Yale 3403 BD+62986 , GLS 576 Wolf 636B, Yale 3880 Wolf 562, Yale 3458 Ross 53, Yale 3383 LFT 1162, McC 731, 986 , GLS 623 , 1 0.27 AC + 49°1612-125, AC+48°1 595-89 , 20C McC 726B, Yale 3375B HR 5568B, LFT 1160, 1 0.6 56, Yale 3387.1 AC + 45 630-70 , McC HD 131976, 7.93 899, GLS 570B, BD-20°4123, 20C ADS 9446B, 11.08 20C 901, GLS 570.2, AC+32°41602, AC+31°32985, (1900) Astrophysics Data System © American Astronomical Society • Provided by the NASA R.A. Decl. 1 01 1 7:00.0 - 04° 55 16:50.1 -08 09 16:41.4 +33 41 16:14.8 +55 33 15:30.2 +14 14 16:54.1 +25 55 16:50.1 -08 09 16:49.6 +12 04 16:16.5 +67 29 16:21.1 +48 36 15:47.4 +11 12 16:01.6 +08 38 16:02.9 +34 55 15:38.7 +32 16 15:14.2 -07 21 15:16.9 -04 25 15:14.2 +02 09 14:55.7 +45 52 16:24.7 -12 25 15:08.8 -03 26 15:03.1 +25 18 15:00.0 +06 00 14:57.4 +45 49 14:55.3 -10 43 -20 58 14:51.6 14:53.5 +31 46 6 30 1 4:49.8 +1
PI''''8Z''•Srdv^^GI Type Spectral 7.6 D dMOe 8.6 9.4 8.6 D dMl 9.7 8.7 E dMl 9.54 13.25 A sdM4.5 9.38 10.08 B dM2 9.7 dMO A dM4 9.96 ,10.91 9.15 10.79 A dM4 dMl.5 9.32 9.4 C 9.95 9.08 B dMl.5 {{ dMO 9.63 ,8.3 D dMl 9.62 10.14 B 10.02 8.7 C dMO 12.51 11.3 D dM3.5 10.1 9.1 E dMO 12.5 dMle 10.4 8.5 F dMl.5 10.0 dMl 10.1 9.5 E dMl.5 10.03 8.6 E dMO IQ.23 9.0 E dMl.5 10.50 10.55 C dM3.5 Ml .28 B 10.33 9.91 8.68 D dMl 10.2 dM4.5e 12.92 12.81 C dM0.5 10.4 10.04 8.8 E dMO.5 dM4e 11.36 11.25 C ,1 0.33 ,1 0.80 B dM3. 5 MO.79 Ml .26 C { 12 1 (cont.) Table Identifications 0 0 0 0 0 BD-1° 3474 , GLS 710, HD 1 68442 , McC 63, Yale 4204 BD- 1 1 467 2 , 20C 1091, GLS 717, McC 181, Wolf 1 462 , Yale 4266 Yale 4098 1069, GLS 699, LFT 1385, McC 799, Frjm 41 BD+18°3606, GLS 708, McC 178, Yale 4192 Yale 4193.2 GLS 708.3, L1064-75, LFT 1404, Yale 4193.1 BD+13° 3578, GLS 708.2 , LFT 1 403, McC 179, BD-12°4935, McC 177, Yale 4156 Yale 4062 BD+46°2361, GLS 694.2, McC 173, 174, Yale 4074 BD-6°4663 , GLS 696, HD 1 62283, McC Yale 4088.1 BD-3°4233 , GLS 701, HD 1 65222 , LFT 1 389 , McC 176, Yale 4133 687, LFT 1 364 , BD + 68°946, 1 8C 2354 , 20C 1 053 , GLS 1371, McC 171, BD+43° 2796 , 20C 1 062 , GLS 694, LFT 169, Yale 4009 GLS 686 , L1 2 78- 24, L FT 1 363 , McC Yale 4011.1A L FT 1361 , McC 62, Yale 4017 Yale 4053 Ross 868, Yale 3941A McC 321, Wolf 751, BD+5° 3409 , GLS 678.1A, 697.1 , McC 324 , AC + 4° 251 0-357, AC + 3°251 8-200, GLS a, 20C AC + 4°251 0- 1 48, Barnard's star, BD+4°3561 Yale 4011.IB McC 322, Yale 4029 Yale 4060BC ADS 10786BC, GLS 695BC, LFT 1375, LFT 1 329 , 1 025, Frjm 47, 0, 1 80 2297 , 20C BD + 42281 168 BD-14°4622, McC McC 61 , Yale 3975 Yale 3975.1 Yale 4071 AC+501784-39, McC 175, Wolf 1386, 18C 2347, 20C 1050, AC+19°997-273, AC+18°1453-48, McC 170A, ADS 10675A, BD+23°3151A, GLS 686.IA, McC 170B, ADS 10675B, BD+23°3151B, GLS 686.IB, 661AB, HD 1 55876, , 20C 1 023, GLS BD + 45 2505 3907AB , McC 165, Yale LFT 1 326 Yale 3941B GLS 669B, Ross 867, 18C 2334, GLS 677AB, ADS 10585AB, BD+29°3029, GLS 685, AC+62 26749 , AC + 61°26806, 20C 1051, McC 167, Yale 3911 AC+26°42823, GLS 669A, AC+27°36984, AC+26°41991, (1900) Astrophysics Data System © American Astronomical Society • Provided by the NASA 1 . R.A. Dec 18:31.6 +51° 34' BD+51° 2402 , 1 8C 2443 , GLS 719, HD 234677 18:14.6 -01 58 18:27.9 -11 42 18:11.3+01 29 18:11.4 +13 54 18:11.0 +18 28 17:59.8 -03 02 17:50.6 +03 48 18:07.4 -16 12 18:04.0 -12 03 17:52.9 +04 25 17:44.2 +50 06 17:42.5 +27 47 17:45.0 -06 01 17:42.8 +46 53 17:37.0 +68 26 17:40.9 +43 26 17:34.5 +61 45 17:33.6 +23 01 17:33.1 +23 01 17:17.0 -14 51 17:33.4 +18 37 17:25.5 +29 29 17:16.0 +26 36 17:16.0 +26 36 17:25.5 +05 38 28 17:09.9 +42 50' 1 7:09.2 +45°
PI''''8Z''•Srdv^^GI Type dMO dMO dMO dMO.5 dMO dMle dMO Spectral dM2 9.4 C 8.13 C dMl.5 9.83 C dMl.5 8.2 E dMO 9.59 C dMl.5 9.9 C dM3e 8.87 C dMl 8.8 E dMO.5 9.72 B dMl.5 8.82 C dMO.5 8.2 D dMl.5 1 1 . 15 A dM4 13.3 C dM4.5e 11.94 B dM4.5 11.15 B dM2 11.14 B dM2 i 10.31 A dM3 ,12.20 B dM4 12.50 B 12.6 B dM4.5 hs.e C ; 9.30 11.17 11.13 B dM4 12.6 13.6 10.28 Ross 165, ^ 13 1 (cont.) Table Identifications h 0 0 { 0 nh 0 o 64, Ross 142, Yale 4348 1111, GLS 730, McC LFT 1431, McC 184A, Yale 4330A 7 25A, HD 1 73739 , 9.5 Yale 4291 BD+79°590, McC 183, Sgr, Yale 4338 Ross 154, V1216 1509, Yale 4377.1 745A, LFT 1 449, Ross 730 , Yale 4451A LFT 1421, 9.82 50, GIS 720A, , 20C 1 095 , Frjm BD + 45° 2 743 Yale 4285 McC 182, LFT 1432, McC 184B, Yale 4330B 725B, HD 173740, WB 181295-6, Yale 4345 LFT 1436, McC 185, B 745B, LFT 1 450, Ross 731, Yale 4451 4356 LFT 1440, McC 186, Ross 160, Yale McC 187, Wolf 9.52 BD+10° 3724 , GLS 734A, HD 23001 7, 740, 9.23 BD+5° 3993, 1 8C 2475 , 20C 1120, GLS , 9.20 2463 , 20C 1109, GLS 728, HD 229590 BD+17° 37 29 , 1 8C 731, HD 229793 , 1 0.1 0 AC+17°435-695 , AC+16°247-80, GLS Yale 4380 4398 HD 176029, LFT 1443, McC 190, Yale 8.90 18C 2456A, 20C 1105, GLS ADS 11632A, BD+59°1915A, 9.69 1915B, 18C 2456B, 20C 1106, GLS ADS 11632B, BD+59 1 0.6 20C 1108, GLS 729 , LFT 1 437 , AC-24°2833-1 83 , LFT 1455, Wolf 1062, Yale 4472 HD 1 8061 7, LFT 9.12 BD+4° 4048A, 20C 1143, GLS 752A, Yale 4494A 1466, McC 65, Ross 652, Wolf 1055, 735, McC 188, 10.07 AC+9°142-269, AC+8°142-393, GLS 10.72 AC+2°2153-15, 20C AC+4°2541-118, AC+3°2528-l76, 20C 1129f, GLS 10.76 AC + 21 1 345-292, AC + 20°1 463-1 54 , 4459 12.07 GLS 747AB , LFT 1451, 17 Lyr C, Yale 735 , Yale 4487 9.9 BD+24 3692 , GLS 751, McC 193, Ross 20C 1129p, GLS 10.77 AC+21° 1 345- 285 , AC +20° 1 463-1 48 , LFT 1485, McC 196, Yale 4583 20C 1163, GLS 766AB, LFT 1491 LFT 1504, McC 327, WB 191235, Yale 4713 LFT 1504, McC 327, WB 191235, Yale 4713 BD+0°4240, GLS 761.2, McC 195, Yale 4573 10.40 BD+4°4157, 18C 2556 , 20C 1159, GLS 763 , HD 1 84489 , 9.36 10.0 AC+75°7157, McC 191, Yale 4434 BD+31 3767A, 20C 1165, GLS 767A, LFT 1 492 , BD-12° 5594 , 1 8C 2599 , 20C 1174, GLS 773 , HD 1 88807, 1136, GLS 748, AC+32540-311, AC+2°2155-242, 20C ADS 1 2882B , BD + 3°4138B 11.4 Yale 4646 , 20C 1130C, ,11.77 ADS 1 2061 C, AC + 33° 5 7637 , AC + 32° 54804 AC-2°326-200, McC 194, Yale 4512 10.3 AC+9°148-85, McC 326 10.0 McC 19 7 A , Yale 4652A (1900) Astrophysics Data System © American Astronomical Society • Provided by the NASA 1. R.A. Dec 00 18:41.7 +59 29 39' 1 8:32.4 +45° 19:00.7 +75 12 18:50.3 +10 51 18:47.4 +16 28 18:43.6 -23 57 18:41.7 +59 29 18:33.1 +79 20 18:50.6 +08 18 18:53.1 +05 48 18:45.0 +02 59 18:44.5 +17 20 19:11.2 +24 42 19:02.8 +20 44 19:02.8 +20 44 19:29.6 +04 21 19:27.5 +00 22 19:12.1 +05 03 19:03.6 +32 21 19:07.0 +02 44 19:42.5 +31 47 19:41.0 +04 00 19:41.7 +26 55 19:51.8 -12 49 19:39.4 +09 52 19:14.2 -01 47 1 0.2 1 9:58.2 +1 950' AC + 20 1 080-2078 , AC+19° 1 909-242 , McC 198, Yale 4751
PI''''8Z''•Srdv^^GI Type M. Spectral 9.08 8.0 D dMO 9.17 7.6 D dMO 9.4 dM2e 6.67 8.75 A dMl 6.03 8.39 A dMO 8.50 9.18 A dM2 8.61 8.87 B dM2.5e dMO.5 8.89 8.2 D dMO 8.94 7.9 C 1 0.35 1 1 .27 B dM3.5 11.95 12.59 B dM5e 11.1 dMO 10.57 9.2 E dMl 10.3 dMO 12.3 Ml .7 D 13.0 s dMl.5 11.5 dM3 10.8 10.5 C dM3 11.4 9.6 E dM3 10.26 r 9.6 C dM3e 15.1 14.4 E dM5e 10.20 9.1 C dMl.5 10.4 9.5 C dM2 10.8 dMO dM3 10.43 10.96 B dM4.5e 1 0.83 1 1 .09 B dM4.5e 10.9 11.2 B dMO 10.7 dMl 10.2 10.8 C dM3e 11.9 14 ) 1 (cont. Table I den tifications h 0 LFT 1634, Ross 775, Yale 5177 BD-13°5945, 18C 2790, 20C 1284, GLS 830, HD 204587 LFT 1635, McC 202, WB 21502, Yale 5174 BD+11°4571 , Yale 5173 BD-11°5581, McC 334 Yale 5164 AC+18° 1 072- 183 , AC+17°534-1 05 , 20C 1 285 , GLS 829 , McC 200, 1250, Frjm 54, GLS 815AB, LFT 1591, BD-21°6185, 18C 2770, 20C 1278, GLS 826.1, BD-5°5480B, 3GC 10765B, McC 332 20C 1263, LFT 1608, Wolf 1106, Yale 5092 HD 203040 , McC 201 , Yale 5133 CD-39°14192, 18C 2757, 20C 1273, GLS 825, HD 202560, LFT 1617, LPM 772, Yale 5117 AC + 4° 2581 -239 , AC + 3°2561 - 36 , GLS 828.1, McC 70, Yale 5043 GLS 809 , BD+61° 2068, 1 8C 2707 , 20C 1 238, 5077B GLS 820B, HD 201 092 , LFT 1 605 , Yale 4942 20C 1224, LFT 1563, Ross 766, Yale 1565, Ross 257, BD+19°4499, 20C 1226, GLS 804, LFT 1084, Yale 4949 20C 1227, GLS 802, LFT 1564, Wolf 5012 HD 199305, LFT 1580, McC 199, Yale 61 Cyg B, ADS 14636B, BD+38°4344, 20C 1260, Yale 4951 LFT 1 586 , AC-11 ° 2439-1 79 , 20C 1 242 , GLS 811.1, Wolf 896, Yale 5015 20C AC+40°883-87, AC+39°1214-608, AC+39°57322, Ross 751, Yale 4934A McC 824, Yale 4939 4940 BD+56°2471, McC 68, Wolf 1080, Yale Yale 4945 LFT 1 562 , BD-19° 5899 , 20C 1 223, GLS 800A, HD 197481, CD-3117815, 20C 1225, GLS 803, 799B, Yale 4929B CD-32°16135B, GLS LFT 1568, AC+44°871-589, 20C 1228, GLS 806, 67, Yale 4871 BD+26°3915AB, McC 799A, HD 196982, Yale 4929A, CD-32°16135A, GLS Yale 4838 BD+77°767, McC 66, Yale 4889 ; 1130, Yale 4775 1069b, Wolf 20C 1200, GLS 786, HD 193202 BD+76°785, 18C 2648, LFT 1536, Yale 4834 , 782 , HD 191391, L FT 1 528 , McC 330 BD-20° 5833 , GLS 1213, GLS 793, LFT 1552, McC 820, AC+65°6955, 20C Yale 4781.3 Ross 781, LFT 1521, 03 , 20C 1191, GLS AC + 55°501 Astrophysics Data System © American Astronomical Society • Provided by the NASA (1900) . R. A. Dec! 1 21:25.8 -10°14' 20C 1288, GLS 831, LFT 1639, Eolf 922, Yale 5184 21 : 24.5 -1 2 56 21 : 2 4.8 +17 12 21 : 24.3 +11 43 21 :14.6 -20 15 21:21.7 +03 18 21 :16.8 -10 57 21:11.4 -39 15 21 : 03.5 -04 50 21 : 02.4 +38 1 5 21 : 05.6 +59 22 20:56.2 +39 41 20:51.4 -10 48 20:51.3 +61 48 20:41.5 +44 08 20:39.8 +19 24 20:40.5 +54 57 20:39.1 +35 G9 20:38.9 -31 42 20:39.0 +57 04 20:37.2 -19 16 20:29.0 +65 06 20:35.6 -32 47 20:35.6 -32 47 20:26.0 +26 31 20:13.9 +76 55 20:14.1 +77 24 20:04.5 -20 46 +54°10 20:02.8
PI''''8Z''•Srdv^^GI Type dMO dMl dMO dMO. 5 S pectra1 M + 8.46 B dMO.5 9.50 A dM2.5 9.1 C dMl.5 9.3 C dM2e 9.1 E dMO.5 9.1 D dMl dMl 8.3 F 9.3 C dMO 8.7 F dMl 8.3 F dMO 8.15 F dMO.5 9.1 E dMl 9.11 C 9.0 E dM2.5 9.0 E dM2 11.6 C dM3e 14.60 A dMb.5e 11.77 A dM4.5 11.65 A dM4.5e 10.0 F dM3.5e 14.6 D dM5e 11.87 A dM3.5 13.3 B dM4.5e 13.6 D dM4.5e 10.67 B dM3.5 7.89 8.68 10.17 10.8 11.45 10.2 10.9 10.1 11.8 r 1 0.3 MO.5 15 (cont.) Tablel Identifications 0 0 Ross 780, Yale 5546 BD+15°4733, 20C 1392, GLS 880, HD 216899, LFT 1751, McC 854, Ross 671, Yale 5563 CD-23°17699, 18C 3001, 20C 1396, GLS 884, BGC 11854B, GLS 867B, L 717-22 873, EV Lac, BD+43°4305, 20C 1382, Frjm 58, GLS BD-7°5871, GLS 875, HD 216133, McC 210, Yale 5527 BD-15°6290 , 20C 1 387 , GLS 876 , LFT 1 745 , McC 337 , BD-12° 6393 , GLS 883, McC 338 HD 217357, LFT 1754, McC 339, Yale 5572 214100, 10.02 BD-1°4323, 20C 1373, GLS 864, HD 5465 LFT 1726, McC 843, Ross 279, Yale HD 214479, McC 336 9.10 BD-21°6267, ßGC 11854A, GLS 867A, LFT 1737, McC 852, Yale 5520 Yale 5537 837, Yale 5475 12.18 GLS 866, L 789-6, LFT 1729, LPM LFT 1698, McC 206, Yale 5387.1 1714, McC 207A, 860A, HD 239960 , Krüger 60A, LFT LFT 1 724 , ,10.82 BD+53° 291 1, 20C 1 370, GLS 863.TAB, AC + 32°82462, AC + 31°70565 , GLS 875.1 , LFT 1741, Yale 5397A 14.5 GLS 852B, LFT 1700, Wolf 1561B, Yale 5292 LFT 1 667 , McC 72, GLS 839 , 10.0 1 344 , GLS 851.1, Wolf 1184, BD+ 30 46 33 , 20C Yale 5372.1 Yale 5397A 13.5 GLS 852A, LFT 1 699 , Wolf 1561A, LFT 1720, McC 207B, Yale 5438B 208, Yale 5454 1 0.37 BD+8°4887 , GLS 863 , LFT 1 723 , McC Yale 5215 9.85 835, McC 203, 20C 1299, GLS BD+27°4120, , 9.1 7 GLS 846 , HD 209290 , L FT 1 678 B 0+0° 4810 , 20C 1331, Yale 5318 McC 335, Wolf 1340, 10.42 340 , GLS 849 , LFT 1 689 , McC 73, BD-5° 571 5 , 20C 1 Yale 5367 McC 74, Ross 271, AC+24°44-ll, McC 209, Yale 5524 20C 1366, GLS 9.85 ADS 15972A, BD+56°2783, 18C 2922, Yale 5438 Frjm 57, 10.25 , 20C 1 320 , AC+41°91 5-440 AC+42°919-225, 5358 Wolf 1329, Yale MO.8 McC 842AB , Ross 668 , Yale 5455AB L 1436-1 1, 1 0.31 AC+28 68420 , AC+27°66379 , GLS 851.5, 60B, 11.3 ADS 15972B, DO Cep, GLS 860B, Krüger 1 0.0 842.2 , McC 204 , Yale 5320 AC+ 75°8347 , GLS 10.7 205, Wolf 1003, Yale 5364.1 AC+7°166-62, McC 10.1 AC+17°536- 1 25 , GLS 851, LFT 1691, AC+ ;8° ;937-307 , Astrophysics Data System © American Astronomical Society • Provided by the NASA (1900) R.A. Dec!. 1 1 22 : 55.1 - 26 ° 51 CD-26°1 6420 , GLS 885AB, HD 21 7379 , McC 340 22:54.6 -11 55 22:42.5 +43 49 22:31.0 -01 21 22:55.0 -23 04 22:47.9 -14 47 22:51.8 +16 02 22:45.1 -07 38 22:47.2 +31 13 22:33.3 -21 08 22:33.3 -21 08 22:33.0 -15 52 22:43.8 +24 11 22:28.7 +53 16 22:28.0 +08 51 22:24.4 +57 12 22:24.4 +57 12 22:12.1 -09 18 22:12.1 -09 18 22:07.6 +31 05 22:09.9 +27 22 22:04.4 -05 08 21 : 57.1 +00 56 21 : 33.5 +27°16 19 21 :49.8 +41 22:06.7 +17 55 21:57.6 +75 08 22:05.8 +07 25
PI''''8Z''•Srdv^^GI Type dMl .5 dMO. 5 dMO.5 dMl dMO. 5 dMO dMO dMO dM2.5e dMO. 5 dMO. 5 dMl M Spectral t 9.76 B dM2 8.5 D dMO.5 8.6 E dMO 8.5 E dMO.5 dM2.5 9.59 B 9.7 D dM2 10.39 A dM3.5e 10.19 B dM2.5e 15.1 F dM4.5 14.80 A dM5.5e 11.33 B dM4e 13.4 C dM5e 1 Gliese numbers 29.1, 278,719, and 867A. The three known The weighted mean difference in absolute magnitude 1 sources (see below). scatter in the absolute magnitudes is not due primarily much brighter. This result of no significant difference study (Joy 1947)—makes it less likely that dMe’s are between dMe’s and dM’s is an insignificant 0.02 ± 0.07(p.e.) mag in the sense of the dMe’s being that in absolute magnitudes—a departure from the previous all spectroscopic binaries, even though the four known double-lined binaries are all dMe’s and their absolute periods are less than 6 days. to errors in the parallaxes and photometry but to other (concluded) Table 1 Identifications A. ABT H. JOY AND HELMUT ALFRED 0 LFT 5, Yale 5817 10.2 B D+13° 519 5, McC 215A, Yale 5801.1A 1 0.7 BD-1 7 6862 , McC 350 CD-37°15492, 18C 3161, 20C 3, GLS 1, HD 225213, 8.63 10.6 BD-22°6219, GLS 911, McC 348 10.7 L 793-14, McC 349A GLS 913, LFT 1840, 9.62 BD+45°4378, 18C 3143, 20C 1466, McC 216, Yale 4C 248, Yale 5736 1 2.29 20C 1 445, GLS 905 , LFT 1816, Ross 908, Lai 46650, 8.98 BD+1°4774, 18C 3124, 20C 1454, GLS LFT 1828, McC 82, Yale 5763 10.9 McC 215B, Yale 5801.IB ADS 48F, BD+44 4548, 20C 4, Frjm 63, GLS 2, LFT 6, 9.89 10.5 BD-3°5691, McC 345 9.66 BD-13° 6464 , GLS 907.1 , McC 212 McC 214, Yale 5792 5703.1 9.59 BD+0° 5017 , GLS 900 , McC 81, Yale 16.50 G 29-61, GLS 905.1, Yale 5741 5751.1 9.9 AC+36 °64438, GLS 906 , McC 347 , Yale 1 1.1 Yale 5678.1 BD-2° 5958 , McC 78, Yale 5694A McC 80B, EQ Peg, 12.4 BD + 19° 5116B , GLS 896B, LFT 1 800 , Yale 5694B 10.05 895, McC 211, Ross 302, Yale 5665 BD+57°2735, GLS 10.38 896A, LFT 1 799 , McC 80A, BD+19° 5116A, GLS 9.68 889, HD 218294, McC 341 CD-23°17748, GLS 1 0.6 890 , McC 342 BD-16°6218 , GLS 10.2 Yale 5629.1 BD+4°4988, McC 344, 8.5 77, Yale 5591 BD+65°1846, McC 7.36 1400, GLS 887, 18C 3014, 20C CD-36°15693, Yale 5584 HD 217987, LFT 1758, (1900) R.A. Decl. 0 23:59.5 -37 51 23:59.9 +4514' 23:56.3 -17 31 23:53.5 +46 10 23:56.1 +13 24 23:56.1 +13 24 23:43.3 -13 31 23:44.0 +01 52 23:49.6 -22 21 23:52.1 -17 04 23:37.8 +00 22 23:40.4 +35 43 23:29.1 +01 03 23:37.0 +43 39 23:37.1 -03 07 23:19.9 +57 20 23:21.9 -01 50 23:26.8 +19 21 23:26.8 +19 21 23:03.1 -15 57 23:11.7 +05 08 23:00.5 +66 14 23:01.7 -23 42 -36°Z6' 22:59.4 Astrophysics Data System © American Astronomical Society • Provided by the NASA 16 of dM stars. A difference might have bearing on some but more (1.1 mag) for quality F. This means that the nations A, B, C,..., F, respectively; however, in table spaced binaries or chromospheric effects in young stars. In table 2 we summarize the absolute magnitude data from Gliese (1969) for 302 M dwarfs. We used stars, such as exchanged gaseous material in closely of the trigonometric-parallax quality for qualities A-E numerical weights 6, 5,4,..., 1 for Gliese weight desig- 2 we list only the total numbers of stars used. The mean possible explanations for the nature of emission-line dispersion per spectral type is 0.57 mag, independent trigonometric parallaxes only and weighted them with
PI''''8Z''•Srdv^^GI 17 (12) dMe (mag) 1.94(2) 2.01(1) 1.52(4) 1.69 (4) 1.44 (2) 1.44 (2) 1.48 (2) 1.49 (3) 1.57(4) 1.66 (7) 1.63 (3) (11) dM
PI''''8Z''•Srdv^^GI 163 (Nos. 1002-1069). (Nos. 398-540); 87-252); 36, 172 (Nos. 253-397); 37, 53 986-1001); 48, 869); 46, 157 (Nos. 870-985); 48, 10 (Nos. 41, 88 (Nos. 860- (Nos. 788-828); 40, 38 (Nos. 829-859); 681-787); 39, 140 37, 193 (Nos. 541-680); 38, 117 (Nos. Walther, M. E. 1946, Ap. J., 104, 234. are appropriate regarding sub- A few comments and R. F. Wing We are indebted to Drs. W. Gliese 18 after having The senior author died on 1973 April +15°, observed (Königsberg), Vol. 1 (1260 stars, —15° to by Bessel). (numerous papers listing 1563 stars). S. B. 1970, Roy. Obs. Annals, No. 5. 1-86); 36,124 (Nos. Ross, F. E. 1925-1939, A.J., 36, 96 (Nos. R — I than M4.5) than (at least earlier sensitivity to the dispersion amounts while for 5 — / subclass, that although 5 — /colors have subclass. We conclude spectral types we would have ex- dwarfs of the same Smith, J. L. 1951, Pub. A.S.P., 63, 89. type : the dispersion stars of different spectral colors to spectral to one difference corresponding B — V color difference of one-half of a spectral the R — I color spectral type, they are also subject more sensitivity to stars. recognizable spectroscopically by dwarfs, which are of astronomical bution terminates 58 productive years Vyssotsky, A. N. 1943, Ap. J., 97, 381. W. J., S.J., and Vyssotsky, A. N., Janssen, E. M., Miller, to the given type amounts of 0.06 mag at a in B — V differences between dMe and dM to small systematic five such stars occurred in this their weak lines. Only to be a dMe. The trigonometric pected one star fainter than normal dwarfs. of errors for very helpful comments and the correction This final contri- revised the first draft of this paper. have emission lines: for normal program and none for three of these subdwarfs parallaxes available of 1.2 mag indicate that subdwarfs are an average in an early draft of this paper. . 1956, A.J., 61, 201. Ap. J., 116, 117. Vyssotsky, A. N., and Mateer, B. A. 1952, research. Stellar um Fixarum Weisse, M. 1846, Positiones Mediae Wilson, O. C. 1967, A.J., 72, 905. Wing, R. F. 1973, private communication. Wolf, M. 1914-1929, Astr. Nach., 199, 253 to 236, 293 to +45°). . 1863, ibid., Vol. 2 (1391 stars, +15° Woolley, R. v. d. R., Epps, E. A., Penston, M. J., and Pocock, REFERENCES A. ABT H. JOY AND HELMUT ALFRED Astrophysics Data System © American Astronomical Society • Provided by the NASA the Epoch 1810.0 Groombridge’s Circumpolar Catalogue for ling er, 59A, No. 22. Observatory). Strand (Chicago: University of Chicago Press), p. 78. University of Chicago Press), p. 273. p. 383. (Chicago: University of Chicago Press), 22. ometric Stellar Parallaxes (New Haven: Yale University (Edinburgh: Neill & Co, Ltd., Bellevue). Motions Exceeding 0".5 Annually (Minneapolis: Lund Press). Strand (Chicago: in Basic Astronomical Data, ed. K. Aa. B — V colors In contrast to the R — I data, the show less As is well known, the B — V colors Observatory). Parallaxes (New Haven: Yale University 18 (1973) found no trace of Paschen 1951) but Wing Keenan, P. C. 1963, in Basic Astronomical Data, ed. K. Aa. Paschen lines (P8 and above) fall Similarly, the higher 0.02 mag. of 0.08 ± types by an average same spectral Luyten, W. J. 1955, A Catalogue of 1849 Stars with Proper but since the dispersion a spectral subclass, one-half of measured the difference in type is 0.09 mag, at a given of the than the dM stars larger colors systematically Kron, G. E., and Smith, J. L. 1951, Ap. J., 113, 324. Heidelberg, No. Gliese, W. 1969, Veröjf. Astr. Rechen-Institut Worley, C. E. 1963, Harris, D. L., Ill, Strand, K. Aa., and 0.03(p.e.) mag for show a mean difference of 0.03 ± — /colors in dMe stars. However, contribute to the R used to distinguish photometrically R — I cannot be dM star. Since the Ha line lies well a dMe star from a of to the color difference corresponds The difference Catalogue of Trigon- . 1963, Supplement to the General Soc. Fordhand- Furuhjelm, E. R. 1917, Finska Vettenskaps New Reduction of Dyson, F. W., and Thackeray, W. G. 1905, I color difference not the cause of the systematic R — between dMe and dM stars. the dMe’s having dMe and dM stars of the same types, Evidentally another source for the shows Ha emission. (Smith 1951), the Ha emission may within the i?-filter /colors smaller for the dMe stars. by making the R — Joy, A. H. 1947, Ap. J., 105, 96. Trigonometric Stellar Jenkins, L. F. 1952, General Catalogue of has none, this several hydrogen lines and the F-filter 5-filter includes an insignificantly larger color. Since the have to be hypothesized. of the /-filter (Kron and Smith within the response 359 (dM6.5e), which consistently emission in Wolf be in the wrong sense, namely the contribution would 571. Iben, I. 1967, Ann. Rev. Astr. and Ap., 5, ed. K. Aa. Strand Blaauw, A. 1963, in Basic Astronomical Data, emission lines are result again suggests that hydrogen Helmut A. Abt Box 26732, Kitt Peak National Observatory, Tucson, Arizona 85726 Alfred Joy (Deceased) such as in circumstellar shells, will infrared excesses,
PI''''8Z''•Srdv^^GI