CIRCULAR No. 158 (FEBRUARY 2006)

CIRCULAR No. 158 (FEBRUARY 2006)

INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26 (DOUBLE STARS) INFORMATION CIRCULAR No. 158 (FEBRUARY 2006) NEW ORBITS ADS Name P T e Ω(2000) 2006 Author(s) α2000δ n a i ω Last ob. 2007 463 HO 3 64y53 1984.84 0.290 116◦5 169◦5 0′′205 CVETKOVIC 00335+4006 5.5784 0′′388 111◦6 143◦1 1996.691 163.1 0.225 684 BU 232 AB 200.96 1914.52 0.621 64.9 250.5 0.85 SCARDIA 00504+5038 1.7914 0.531 31.9 11.4 2006.025 250.9 0.86 et al. (*) 836 A 2901 1517.34 1950.56 0.621 48.4 60.6 0.409 NOVAKOVIC 01015+6922 0.2373 0.990 69.3 330.2 2001.8352 61.0 0.408 1345 A 1 357.02 2205.28 0.299 76.1 249.7 0.818 NOVAKOVIC 01424-0645 1.0083 0.641 50.8 1.9 2003.9600 250.1 0.819 1380 STF 148 625.27 2013.18 0.689 147.9 242.3 0.136 NOVAKOVIC 01461+6349 0.5757 1.081 67.6 121.6 1997.03 252.3 0.137 1729 A 2013 34.66 2005.69 0.593 91.8 282.7 0.130 DOCOBO & 02159+0638 10.3866 0.346 112.3 137.6 2004.9904 265.8 0.165 TAMAZIAN 2799 STT 65 61.00 1998.39 0.635 27.3 183.1 0.087 DOCOBO 03503+2535 5.9016 0.411 84.3 340.5 2004.9906 190.0 0.127 & LING GLE 1 480. 1990.90 0.630 92.3 184.4 0.329 DOCOBO 04163-6057 0.7500 0.890 34.1 35.4 2001.8923 187.8 0.336 & LING 3326 A 1840 AB 128.58 2003.60 0.551 62.4 332.5 0.071 CVETKOVIC 04362+0814 2.7998 0.222 133.0 62.8 1996.869 317.5 0.075 RST 3401 159.41 1966.85 0.473 96.2 273.6 0.420 NOVAKOVIC 04374-0951 2.2583 0.354 143.3 46.2 1991.25 272.5 0.424 3434 HU 612 309.87 1903.76 0.424 3.8 357.6 0.652 NOVAKOVIC 04478+5318 1.1618 0.502 40.3 200.9 2004.924 358.1 0.655 1 NEW ORBITS (continuation) ADS Name P T e Ω(2000) 2006 Author(s) α2000δ n a i ω Last ob. 2007 4020 A 848 534.41 2425.78 0.315 19.8 174.5 0.295 NOVAKOVIC 05255-0033 0.6736 0.400 66.3 17.2 2002.136 175.0 0.298 4229 BU 1240 AB 52.74 1974.93 0.653 127.1 333.9 0.207 RICA 05386+3030 6.8266 0.154 124.2 309.1 2004.095 332.3 0.209 4376 STF 3115 976.83 2131.60 0.338 48.8 338.6 0.790 NOVAKOVIC 05491+6248 0.3685 1.350 131.8 159.4 2003.12 337.9 0.787 5296 STF 945 2679.33 4486.86 0.534 67.4 328.9 0.471 NOVAKOVIC 06404+4058 0.1344 2.307 72.1 186.7 2002.19 329.7 0.471 5726 A 1959 31.85 1988.36 0.008 172.3 166.3 0.255 DOCOBO & 07036+3941 11.3030 0.259 63.3 147.7 2004.9911 171.4 0.261 TAMAZIAN 6381 STF 1146 570.44 2054.74 0.610 12.5 347.4 1.231 NOVAKOVIC 07479-1212 0.6311 2.409 113.9 149.9 2003.253 346.6 1.200 6825 A 550 21.23 1981.30 0.866 71.6 195.9 0.111 CVETKOVIC 08277-0425 16.9589 0.099 149.6 82.1 1996.867 190.8 0.125 COU 1897 165.00 1985.80 0.334 168.1 241.3 0.107 DOCOBO & 08585+3548 2.1818 0.255 61.1 2.3 2004.9911 247.0 0.106 TAMAZIAN COU 1569 117.00 1997.78 0.494 60.7 253.0 0.135 DOCOBO & 10059+3412 3.0769 0.237 69.3 140.1 2004.9913 255.9 0.133 TAMAZIAN 7730 STF 1426 AB 2208.98 2011.15 0.484 127.0 310.3 0.921 NOVAKOVIC 10205+0626 0.1630 1.794 61.1 189.4 2004.304 310.5 0.920 FIN 367 Aa 116.27 2052.18 0.470 155.0 6.1 0.197 MANTE 12064-6543 3.0963 0.222 112.4 286.8 1993.0930 4.8 0.201 9744 HU 580 AB 21.97 2006.98 0.084 70.3 260.7 0.106 DOCOBO 15416+1940 16.3860 0.210 83.2 256.3 2001.5591 276.9 0.050 & LING 11524 HU 198 877.14 2020.98 0.446 130.1 131.0 0.462 NOVAKOVIC 18384+0850 0.4104 0.822 103.7 14.1 2004.2073 130.7 0.461 11956 STF 2437 804.60 2132.95 0.478 114.9 11.4 0.58 SCARDIA 19019+1910 0.4474 0.910 131.0 212.1 2005.662 10.8 0.58 et al. (*) 2 NEW ORBITS (continuation) ADS Name P T e Ω(2000) 2006 Author(s) α2000δ n a i ω Last ob. 2007 LAB 6 Aa 83. 1997.99 0.732 46.4 44.2 0.123 ANDRADE 21287+7034 4.3374 0.195 87.3 194.6 1998.777 44.5 0.140 16731 STT 495 300. 1935.2 0.980 138.6 121.6 0.364 ALZNER 23241+5732 1.2000 0.296 71.0 142.4 2005.80 121.7 0.367 (*) SCARDIA, PRIEUR, PANSECCHI, ARGYLE & BASSO 3 PAPERS PUBLISHED IN 2005 1. ABT, H. A.: Observed Orbital Eccentricities. Astrophys. J. 629 (1), 507 (2005). 2. ALZNER, A.: Micrometer Measurements from 2002.97 to 2004.94. The Webb Soc. Double Star Section Cir. 13, 6 (2005). 3. ANCONELLI, B. et al.: Restoration of interferometric images - IV. An algorithm for super-resolution of stellar systems. Astron. Astrophys. 431 (2), 747 (2005). 4. ARGYLE, R.: Micrometer Measurements from 2004.0 to 2005.0. The Webb Soc. Double Star Section Cir. 13, 1 (2005). 5. BAKIS, V. et al.: Astrometric Solution of the Multiple System Xy Leo. Astrophys. Space Science 296 (1-4), 131. (2005). 6. BALEGA, I. I. et al.: Orbits of new Hipparcos binaries. I. Astron. Astrophys. 433 (2), 591 (2005). 7. BALEGA, Y. Y.; LEUSHIN, V. V. & WEIGELT, G.: Atmospheric Elemental Abun- dances for the Components of the Multiple System ADS 11061. 41 Draconis. Astron. Reports 49 (3), 217 (2005) 8. BALEGA, Y. Y.; LEUSHIN, V. V. & KUZNETSOV, M. K: Atmospheric Chemical Abundances of the Components of the Quadruple System ADS 11061. 40 Draconis. Astron. Reports 49 (12), 984 (2005) 9. BODEN, A. F.; TORRES, G. & HUMMEL, C. A.: Testing Stellar Models with an Improved Physical Orbit for 12 Bootis. Astrophys. J. 627 (1), 464 (2005). 10. BODEN, A. F. et al.: Dynamical Masses for Low-Mass PreMain-Sequence Stars: A Preliminary Physical Orbit for HD 98800 B. Astrophys. J. 635 (1), 442 (2005). 11. BONNELL, I. A. & BATE, M. R.: Binary systems and stellar mergers in massive star formation . Monthly Notices 362 (3), 915 (2005) 12. BOUY, H. et al.: A possible third component in the L dwarf binary system DENIS-P J020529.0-115925 discovered with the HUBBLE space telescope. Astron. J. 129 (1), 511 (2005). 13. BRANHAM, R. L.: Calculating the Apparent Orbit of a Double Star. Astrophys. J. 622 (1), 613 (2005). 14. CARQUILLAT, J.-M.; PRIEUR, J.-L. & UDRY, S.: Contribution to the study of F-G-K-M binaries. X. HD 54901, HD 120544 and HD 123280, three nearby F-type spectroscopic binaries. Astron. Nach. 326 (1), 31 (2005). 15. CARQUILLAT, J.-M.; PRIEUR, J.-L. & GINESTET, N.: Contribution to the study of composite spectra X. HD 3210/1, 27395, 39847, 70826 and 218257/8: five new spectroscopic binaries in multiple systems. Monthly Notices 360 (2), 718 (2005) 4 16. DAVIS, J. et al.: Orbital parameters, masses and distance to β Centauri determined with the Sydney University Stellar Interferometer and high-resolution spectroscopy. Monthly Notices 356 (4), 1362 (2005) 17. FEKEL. F. C. & W. HENRY, G. W.: Chromospherically active stars. XXIV. The giant single-lined binaries HD 37824, HD 181809, and HD 217188. Astron. J. 129 (3), 1669 (2005). 18. FEKEL. F. C. et al.: HD 166181 = V815 Herculis, a single-lined spectroscopic multiple system. Astron. J. 129 (2), 1001 (2005). 19. FRASCA, A. & LANZA, A. F.: Orbital period variation in close binaries from radial velocity data and magnetic activity cycles - II. HR 1099. Astron. Astrophys. 429 (1), 309 (2005). 20. GATEWOOD, G.: An astrometric study of the binary star α Ophiuchi. Astron. J. 130 (2), 809 (2005). 21. GRIFFIN, R. F.: Spectroscopic Binary Orbits from Photoelectric Radial Velocities - Paper 180: Zeta Aurigae. The Observatory 125, 1 (2005). 22. GRIFFIN, R. F.: Spectroscopic Binary Orbits from Photoelectric Radial Velocities - Paper 181: HD 49635/6, HD 50730/1, HD 201563, and HD 203340 . The Obser- vatory 125, 81 (2005). 23. GRIFFIN, R. F.: Spectroscopic Binary Orbits from Photoelectric Radial Velocities - Paper 182: 22 Camelopardalis, HD 156051, HR 6890, and HD221757 . The Observatory 125, 134 (2005). 24. GRIFFIN, R. F.: Spectroscopic Binary Orbits from Photoelectric Radial Velocities - Paper 183: HD 98031, HD 112573, and HD197913 . The Observatory 125, 253 (2005). 25. GRIFFIN, R. F.: Spectroscopic Binary Orbits from Photoelectric Radial Velocities - Paper 184: HD 106383, HD 109070, HD 118157, and HD 121213 . The Observatory 125, 300 (2005). 26. GRIFFIN, R.

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