Information Circulars

INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26 (DOUBLE STARS) INFORMATION CIRCULAR No. 167 (FEBRUARY 2009) NEW ORBITS ADS Name P (yr) T e W(2000) 2009 Author RA 2000 DEC n (deg) a (") i (deg) w (deg) Last ob. 2010 ------------------------------------------------------------------------------------------ MCA 16Aa,Ab 57.90 2037.96 0.357 4.1 30.9 0.342 CVETKOVIC 04422+2257 6.2180 0.284 130.7 142.2 2005.869 28.3 0.348 5322 CHR 168Aa,Ab 74.28 1996.06 0.716 52.6 255.0 0.100 CVETKOVIC 06410+0954 4.8468 0.096 51.2 69.2 2006.191 256.8 0.103 FIN 113AB 269.99 1977.65 0.631 104.6 80.7 0.150 CVETKOVIC 08144-4550 1.3334 0.440 80.1 173.0 2006.199 82.2 0.160 FIN 116 115.90 1994.18 0.519 61.1 237.2 0.215 CVETKOVIC 08275-5501 3.1062 0.250 123.7 79.7 2006.199 235.3 0.221 FIN 315Aa,Ab 196.49 2133.28 0.105 126.7 190.6 0.086 CVETKOVIC 08291-4756 1.8322 0.150 60.5 296.0 2006.194 193.3 0.085 7871 STT 224 214.33 2031.69 0.150 162.5 140.8 0.454 SCARDIA 10397+0851 1.6797 0.550 132.2 81.1 2007.288 139.1 0.448 et al. (*) 8128 STF1527 341.52 2010.19 0.889 178.2 170.7 0.283 SCARDIA 11190+1416 1.0541 2.300 62.2 26.9 2007.288 187.5 0.245 et al. (*) FIN 372 39.61 1993.44 0.314 29.3 9.1 0.113 CVETKOVIC 14567-6247 9.0881 0.091 150.6 224.6 2006.192 4.3 0.114 9547 HO 60 183.0 1973.28 0.543 34.0 68.4 0.163 DOCOBO 15136+3453 1.9672 0.281 109.3 164.2 2005.5179 66.9 0.170 & LING CHR 51 46.37 1992.93 0.957 103.4 248.0 0.290 DOCOBO & 15513-0305 7.7636 0.389 104.4 75.1 2007.509 246.9 0.289 TAMAZIAN CHR 55 76.32 1989.98 0.691 177.5 116.6 0.064 DOCOBO & 16254+3727 4.7170 0.357 96.6 292.5 2007.484 103.6 0.060 TAMAZIAN RST3950 26.55 2000.92 0.858 137.8 72.6 0.255 DOCOBO 16283-1613 13.5593 0.176 148.3 259.8 2005.5205 69.9 0.265 & LING CHR 90 70.62 2005.29 0.244 15.1 22.0 0.215 CVETKOVIC 19531-1436 5.0975 0.281 121.9 315.7 2006.194 17.6 0.222 16518 BU 180AB 537. 2201.93 0.198 1 61.8 135.2 0.535 LING 23072+6050 0.6704 0.517 133.4 180.4 2006.869 134.8 0.533 (*) SCARDIA, PRIEUR, PANSECCHI & ARGYLE ========================================================================================== PAPERS PUBLISHED IN 2008 1. ABT, H. A.: The Difference Between Metal-Poor and Metal-Rich Binaries. Astron. J. 135, 722 (2008). 2. ABT, H. A.: Visual Multiples. IX. MK Spectral Types. Astrophys. J. Sup. Ser. 176 (1), 216 (2008). 3. ABT, H. A.: Evidence That the Mean Radial Velocities of Many B0-B3 Stars Are Systematically Incorrect. Pub. Astron. Soc. of the Pacific 120 (869), 715 (2008). 4. AUGUSTEIJN, T. et al.: White dwarf-red dwarf binaries in the Sloan Digital Sky Survey. I. Sample definition. Astron. Astrophys. 486 (3), 843 (2008). 5. BAINES, E. K. et al.: The Search for Stellar Companions to Exoplanet Host Stars Using the CHARA Array. Astrophys. J. 682 (1), 577 (2008). 6. BALEGA, Y. Y. et al.: Atmospheric chemical abundances and the evolutionary status of the spectroscopic and speckle-interferometric binary 9 Cyg . Astron. Reports 52 (3), 226 (2008). 7. BENDER, C. F. & SIMON, M.: The Detection of Low-Mass Companions in Hyades Cluster Spectroscopic Binary Stars. Astrophys. J. 689 (1), 416 (2008). 8. BLAKE, C. H. et al.: A Spectroscopic Binary at the M/L Transition Astrop. J.Lett. 678, L125 (2008). 9. BOUY, H. et al.: Follow-up observations of binary ultra-cool dwarfs . Astron. Astrophys. 481 (3), 757 (2008). 10. CARQUILLAT, J.-M. & PRIEUR, J.-L. : Contribution to the study of F-G-K-M binaries: XII. Orbital elements of seven new spectroscopic binaries. Astron. Nach. 329 (1), 44 (2008). 11. CONNELLEY, M. S., REIPURTH, B., & TOKUNAGA, A. T. : The Evolution of the Multiplicity of Embedded Protostars. I. Sample Properties and Binary Detections. Astron. J. 135, 2496 (2008). 12. CONNELLEY, M. S., REIPURTH, B., & TOKUNAGA, A. T. : The Evolution of the Multiplicity of Embedded Protostars. II. Binary Separation Distribution and Analysis. Astron. J. 135, 2526 (2008). 13. COSTERO, R. et al.: The Escaping Spectroscopic Binary theta 1 Ori E. Rev. Mex. A. A. Conf. Ser. 34 102 (2008). 14. CVETKOVI 'C, Z.: First Orbits for Five Binaries. Astron. J. 136, 1746 (2008). 15. CVETKOVI 'C, Z. & NINKOVI 'C, S.: Orbits for two short-period and two long-period binaries. New Astron. 13 (8), 587 (2008). 16. CVETKOVI 'C, Z., NOVAKOVI 'C, B. & TODOROVI 'C, N.: Orbits of 11 visual binary stars. New Astron. 13 (3), 125 (2008). 17. DAHN, C. C. et al.: Trigonometric Parallaxes for Two Late-Type Subdwarfs: LSR 1425+71 (sdM8.0) and the Binary LSR 1610-00 (sd?M6pec). Astrophys. J. 686 (1), 548 (2008). 18. DAS, M. K. et al.: Effect of radiation on the stability of equilibrium points in the binary stellar systems: RW-Monocerotis, Kruger 60 Astrophys. J. Sup. Ser. 314, 261 (2008). 19. DAY-JONES, A. C. et al.: Discovery of a widely separated ultracool dwarf / white dwarf binary. Monthly Notices 388 (2), 838 (2008). 20. DOCOBO, J. A. et al.: A methodology for studying physical and dynamical properties of multiple stars. Application to the system of red dwarfs Gl 22. Astron. Astrophys. 478 (1), 187 (2008). 21. DOCOBO, J. A. et al.: First Results of the Optical Speckle Interferometry with the 3.5 m Telescope at Calar Alto (Spain): Measurements and Orbits of Visual Binaries. Astron. J.135, 1803 (2008). 22. DOCOBO, J. A. et al.: Refining the Parallax in Visual Double Stars Using Orbital and Spectral Data: Application to the System of the K0 Giants, A 1808. Astron. J. 136, 890 (2008). 23. EATON, J. A., HENRY, G. W. & ODELL, A. P.: Orbits and Pulsations of the Classical i Aurigae Binaries. Astrophys. J. 679 (2), 1490 (2008). 24. EGGENBERGER, P. et al.: Analysis of 70 Ophiuchi AB including seismic constraints. Astron. Astrophys. 482 (2), 631 (2008). 25. EGGLETON, P. P. & TOKOVININ, A. A.: A catalogue of multiplicity among bright stellar systems . Monthly Notices 389 (2), 869 (2008). 26. ELDRIDGE, J. J., IZZARD, R. G. & TOUT, C. S.: The effect of massive binaries on stellar populations and supernova progenitors. Monthly Notices 384 (3), 1109 (2008). 27. EVANS, N. R. et al.: Direct Detection of the Close Companion of Polaris with the Hubble Space Telescope. Astron. J. 136, 1137 (2008). 28. FEKEL, F. C. et al.: Infrared Spectroscopy of Symbiotic Stars. VI. Combined Orbits for Two S-Type Systems: V455 Scorpii and SS 73-90. Astron. J. 136, 146 (2008). 29. GIES, D. R. et al.: A Spectroscopic Orbit for Regulus. Astrophys. J. Lett. 682 (2), L117 (2008). 30. GOLDMAN, B. et al.: Binarity at the L/T brown dwarf transition - Adaptive optics search for companions. Astron. Astrophys. 490, (2), 763 (2008). 31. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities Paper 198: 48 Piscium, 16 Aurigae, 5 Herculis, and Beta Scuti. The Observatory 128, 21 (2008). 32. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities Paper 199: HD 105443, HD 108576, HD 112276, and HD 112641 with a preliminary discussion of HR 4964. The Observatory 128, 95 (2008). 33. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities Paper 200: Kappa Persei, Beta Leonis Minoris, 56 Ursae Majoris, HR 4593, and 39 Cygni. The Observatory 128, 176 (2008). 34. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities Paper 201: HDE 245814 and HDE 260988. The Observatory 128, 290 (2008). 35. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities Paper 202: 31 and 32 Cygni. The Observatory 128, 362 (2008). 36. GRIFFIN, R. F.: The radial velocity of HDE 276743. The Observatory 128, 407 (2008). 37. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities: A synopsis of papers 151 - 200. The Observatory 128, 448 (2008). 38. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities Paper 203: HD 117063, HD 117123, HD 117139, and HD 117673. The Observatory 128, 474 (2008). 39. HARETER, M. et al.: MOST discovers a multimode delta Scuti star in a triple system: HD 61199. Astron. Astrophys. 492, (1), 185 (2008). 40. HARTKOPF, W. I., MASON, B. D. & RAFFERTY, T. J.: Speckle Interferometry at the USNO Flagstaff Station: Observations Obtained in 2003-2004 and 17 New Orbits. Astron. J. 135, 1334 (2008). 41. HERNANDEZ, X. & LEE, W. H.: The tightening of wide binaries in dSph galaxies through dynamical friction as a test of the dark matter hypothesis . Monthly Notices 387 (4), 1727 (2008). 42. HRIVNAK, B. J. et al.: A Spectroscopic and Photometric Study of the Metal-Poor, Pulsating, Post-Asymptotic Giant Branch Binary HD 46703 . Astron. J. 136, 1557 (2008). 43. HORCH, E. P. et al.: Charge-Coupled Device Speckle Observations of Binary Stars with the WIYN Telescope. V. Measures during 2001-2006. Astron. J. 136, 312 (2008). 44. IORIO, L.: The impact of the oblateness of Regulus on the motion of its companion. Astrophys. Space Science 318 (1-2), 51 (2008). 45. JOERGENS, V.: Binary frequency of very young brown dwarfs at separations smaller than 3 AU. Astron. Astrophys. 492, (2), 545 (2008). 46. KARAMI, K., MOHEBI, R. & SOLTANZADEH, M. M.: Application of a new nonlinear least squares velocity curve analysis technique for spectroscopic binary stars. Astrophys. Space Science 318 (1-2), 69 (2008). 47. KAWKA, A. et al.: Orbital Parameters and Chemical Composition of Four White Dwarfs in PostCommon-Envelope Binaries. Astrophys. J. 675 (2), 1518 (2008). 48. KERVELLA, P. et al.: The radii of the nearby K5V and K7V stars 61 Cygni A & B - CHARA/FLUOR interferometry and CESAM2k modeling . Astron. Astrophys. 488 (2), 667 (2008). 49. KIMINKI, D. C., McSWAIN, M. V. & KOBULNICKY, H. A.: New Massive Binaries in the Cygnus OB2 Association. Astrophys. J. 679 (2), 1478 (2008). 50. KIYAEVA, O. V., KISELEV, A. A. & IZMAILOV, I. S.: Dynamical study of Wide Pairs of Stars based on Data from the WDS Catalog. Astron. Letters 34 (6), 405 (2008). 51. KOHLER, R. et al.: Orbits and masses in the T Tauri system. Astron. Astrophys. 482, (3), 929 (2008). 52. KOHLER, R. et al.: Multiplicity of young stars in and around R Coronae Australis. Astron. Astrophys. 488, (3), 997 (2008). 53. KOUWENHOVEN, M. B. N. & DE GRIJS, R: The effect of binaries on the dynamical mass determination of star clusters. Astron. Astrophys. 480, 103 (2008). 54. KOUWENHOVEN, M. B. N. et al.: Pairing mechanisms for binary stars . Astron. Nach. 329 (9-10), 984 (2008). 55. LAFRENI`ERE, D. et al.: A Multiplicity Census of Young Stars in Chamaeleon I. Astrophys. J. 683 (2), 844 (2008). 56. LAW, N. M., HODGKIN, S. T. & MACKAY, C. D.: The LuckyCam survey for very low mass binaries II. 13 new M4.5 - M6.0 binaries. Monthly Notices 384 (1), 150 (2008). 57. LEE, D.-W. et al.: Microlensing Detections of Planets in Binary Stellar Systems. Astrophys. J. 672, 623 (2008) 58. LIU, M. C., DUPUY, T. J. & IRELAND, M. J.: Keck Laser Guide Star Adaptive Optics Monitoring of 2MASS J15344984-2952274 AB: First Dynamical Mass Determination of a Binary T Dwarf. Astrophys. J. 689 (1), 436 (2008). 59. LUK'YANOV, L. G.: Dynamical evolution of stellar orbits in close binary systems with conservative mass transfer. Astron. Reports 52 (8), 680 (2008). 60. MACHIDA, M. N.: Binary Formation in Star-forming Clouds with Various Metallicities. Astrophys. J. Lett. 682 (1), L1 (2008). 61. MAKAROV, V. V., ZACHARIAS, N. & HENNESSY, G. S.: Common Proper Motion Companions to Nearby Stars: Ages and Evolution. Astrophys. J. 687 (1), 566 (2008). 62. MARINOVIC, A. A. B., GLEBBEEK, E. & POLS, R.: Orbital eccentricities of binary systems with a former AGB star . Astron. Astrophys. 480 (3), 797 (2008). 63. MASON, B. D., HARTKOPF, W. I. & WYCOFF, G. L.: Speckle Interferometry at the U.S. Naval Observatory. XIV. Astron. J. 136, 2223 (2008). 64. MASSAROTTI et al.: Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity . Astron. J. 135, 209 (2008). 65. MAXTED, P. F. et al.: A survey for low-mass spectroscopic binary stars in the young clusters around sigma Orionis and lambda Orionis. Monthly Notices 385 (4), 2210 (2008). 66. MEILLAND, A. et al.: delta Centauri: a new binary Be star detected by VLTI/AMBER spectro-interferometry. Astron. Astrophys. 488 (3), L67 (2008). 67. MERMILLIOD, J.-C., QUELOZ, D. & MAYOR, M.: Membership and binarity of solar-type dwarfs in the nearby open cluster Alpha Persei (Mel 20). Astron. Astrophys. 488 (1), 409 (2008). 68. MINTS, A. A.: Interaction of binary stars with clusters . Astron. Lett. 34 (1), 1 (2008). 69. MONI BIDIN, C., CATELAN, M. & ALTMANN, M.: Is a binary fraction-age relation responsible for the lack of EHB binaries in globular clusters?. Astron. Astrophys. 480 (1), L1 (2008). 70. MUTERSPAUGH, M. W. et al.: Masses, Luminosities, and Orbital Coplanarities of the mu Orionis Quadruple-Star System from Phases Differential Astrometry . Astron. J. 135, 766 (2008). 71. NAZ'E, Y. et al.: A binary signature in the non-thermal radio-emitter Cyg OB2 #9. Astron. Astrophys. 483 (2), 543 (2008). 72. NEUH "AUSER, R. et al.: Astrometric and photometric monitoring of GQ Lupi and its sub-stellar companion. Astron. Astrophys. 484 (1), 281 (2008). 73. PATIENCE, J. et al.: Optical Interferometric Observations of theta 1 Orionis C from NPOI and Implications for the System Orbit. Astrophys. J. Lett. 674 (2), L97 (2008). 74. PENNY, L. R., OUZTS, C & GIES, D. R.: Tomographic Separation of Composite Spectra. XI. The Physical Properties of the Massive Close Binary HD 100213 (TU Muscae). Astrophys. J. 681 (1), 554 (2008). 75. PICHARDO, B., SPARKE, L. S. & AGUILAR, L. A.: Geometrical and physical properties of circumbinary discs in eccentric stellar binaries. Monthly Notices 391 (2), 815 (2008). 76. PRIEUR, J.-L. et al.: Speckle observations with PISCO in Merate V. Astrometric measurements of visual binaries in 2006. Monthly Notices 387 (2), 772 (2008). 77. RADIGAN, J. et al.: Discovery of a Wide Substellar Companion to a Nearby LowMass Star. Astrophys. J. 689 (1), 471 (2008). 78. RAMM, D. J.: High-precision orbital parameters for the short-period spectroscopic binary HD 159656 an eccentric orbit confirmed for an old but active system. Monthly Notices 387 (1), 220 (2008). 79. REID, N. I. et al.: L-Dwarf Binaries in the 20-Parsec Sample . Astron. J. 135, 580 (2008). 80. RIAZ, B., GIZIS, J. E. & SAMADDAR, D.: Hubble Space Telescope Search for M Subdwarf Binaries. Astrophys. J. 672 (2), 1153 (2008). 81. RICA, F.: Orbital Elements for BU 1240 AB. Nature of the C and D Components. Rev. Mex. A. A. 44 (1), 137 (2008). 82. RUCINSKI, S. M. et al.: Radial Velocity Studies of Close Binary Stars. XIII . Astron. J. 136, 586 (2008). 83. SANA, H, et al.: The massive star binary fraction in young open clusters I. NGC 6231 revisited. Monthly Notices 386 (1), 447 (2008). 84. SCARDIA, M. et al.: Speckle observations with PISCO in Merate: IV. Astrometric measurements of visual binaries in 2005 . Astron. Nach. 329 (1), 54 (2008). 85. SCARDIA, M. et al.: Preliminary orbital elements of six visual binary stars . Astron. Nach. 329 (4), 379 (2008). 86. SCHAEFER, G. H. et al.: Preliminary Orbit of the Young Binary Haro 1-14c . Astron. J. 135, 1659 (2008). 87. SCHMIDT, T. O. B. et al.: Confirmation of the binary status of Chamaeleon H alpha 2 - a very young low-mass binary in Chamaeleon . Astron. Astrophys. 484 (2), 413 (2008). 88. SCHUH, S. et al.: A new period determination for the close PG1159 binary SDSS J212531.92-010745.9. Astron. Nach. 329 (4), 376 (2008). 89. SEIFAHRT, A. et al.: Improved orbital solution and masses for the very low-mass multiple system LHS 1070. Astron. Astrophys. 484 (2), 429 (2008). 90. SESAR, B, IZEVIC, Z. & JURIC, M.: Candidate Disk Wide Binaries in the Sloan Digital Sky Survey. Astrophys. J. 689 (2), 1244 (2008). 91. SHKOLNIK E. et al.: BD -22 5866: A Low-Mass, Quadruple-lined Spectroscopic and Eclipsing Binary. Astrophys. J. 682 (2), 1248 (2008). 92. SKEMER, A. J. et al.: Evidence for Misaligned Disks in the T Tauri Triple System: 10 m Superresolution with MMTAO and Markov Chains. Astrophys. J. 676 (2), 182 (2008). 93. STRASSMEIER, K. et al.: The chromospherically active, triple, ellipsoidal, and eclipsing binary HD 6286 = BE Piscium: a laboratory for binary evolution . Astron. Astrophys. 485 (1), 233 (2008). 94. TAKEDA, G., KITA, R. & RASIO, F. A.: Planetary Systems in Binaries. I. Dynamical Classification. Astrophys. J. 683 (2), 1063 (2008). 95. TAMAZIAN, V. S. et al.: Preliminary Orbit and Differential Photometry of the Nearby Flare Star CR Dra . Astron. J. 136, 974 (2008) 96. TAMBOVTSEVA, L. V. & GRININ, V. P.: Disc wind in the HH 30 binary models. Monthly Notices 387 (3), 1313 (2008). 97. THOMPSON, I. B. et al.: CS 22964-161: A Double-Lined Carbon- and s-ProcessEnhanced Metal-Poor Binary Star1. Astrophys. J. 677 (1), 556 (2008). 98. TOKOVININ, A. A.: Comparative statistics and origin of triple and quadruple stars. Monthly Notices 389 (2), 925 (2008). 99. TOKOVININ, A. A. & CANTARUTTI, R.: First Speckle Interferometry at SOAR Telescope with Electron-Multiplication CCD. Pub. Astron. Soc. of the Pacific 120 (864), 170 (2008). 100. TOMKIN, J. & FEKEL, F.: New Precision Orbits of Bright Double-Lined Spectroscopic Binaries. II. HR 2962, HD 214686, and 16 PSC . Astron. J. 135, 555 (2008). 101. TORRES, G., VAZ, L. P. R. & LACY, C. H. S.: Absolute Properties of the Spotted Eclipsing Binary Star CV Bootis . Astron. J. 136, 2158 (2008). 102. TORRES, R. M. et al.: Milli-arcsecond Binaries. Rev. Mex. A. A. Conf. Ser. 34 98 (2008). 103. TURNER, N. H. et al.: Adaptive Optics Photometry and Astrometry of Binary Stars. III. A Faint Companion Search of O-Star Systems . Astron. J. 136, 554 (2008). 104. WILLIAMS, S. J. et al.: Dynamical Masses for the Large Magellanic Cloud Massive Binary System [L72] LH 54-425. A strophys. J. 682 (1), 492 (2008). 105. ZHAO, M. et al.: First Resolved Images of the Eclipsing and Interacting Binary beta Lyrae. Astrophys. J. Lett. 684 (2), L95 (2008). 106. ZHUCHKOV, R. Y. et al.: Physical and Dynamical Parameters of the Multiple System HD 222326 . Astron. Reports 52 (7), 546 (2008). ========================================================================================== ANNOUNCEMENTS ADDRESS CHANGE FOR COMMISSION 26 WEBSITE AND USNO DOUBLE STAR CATALOGS Under direction of its Chief of Naval Operations, all of the websites for the U.S. Navy Oceanography community were recently combined under a single web portal. As a result, the URLs for the Commission 26 website, as well as the WDS, Fourth Interferometric Catalog, Sixth Orbit Catalog, and all other USNO double star catalogs, have changed. All of these sites can now be reached from the URL: http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/wds There may be some further changes to locations of the catalog data files themselves, but the addresses of this page and the pages linked directly from it should remain correct. A considerable number of changes were made to these catalogs in rather short order, so we would appreciate notification of any broken links, as well as any erroneous or missing information the reader may run across. Suggestions for other improvements are also welcome. Brian D. Mason & William I. Hartkopf U.S. Naval Observatory ****************************************************************************************** The deadline for contributions to Information Circular No. 168 is: June 15th 2009 J. A. Docobo (joseangel.docobo@usc.es) J. F. Ling (josefinaf.ling@usc.es) Tel: +34 981592747 Fax: +34 981597054 Observatorio Astronomico "R. M. Aller" P. O. Box 197 Universidade de Santiago de Compostela SPAIN http://www.usc.es/astro ISSN: 1024-7769

INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26 (DOUBLE STARS) INFORMATION CIRCULAR No. 168 (JUNE 2009) NEW ORBITS ADS Name P (yr) T e W(2000) 2009 Author RA 2000 DEC n (deg) a (") i (deg) w (deg) Last ob. 2010 ------------------------------------------------------------------------------------------ - KUI 103 29.5 2006.48 0.600 283.6 347.6 0.407 GILI 21000+4004 12.2034 0.691 36.3 329.6 2008.664 7.0 0.479 - RST 33 215.5 1951.21 0.901 154.7 300.4 1.110 DOCOBO 01259-4754 1.6704 1.154 112.5 71.8 2001.8648 300.1 1.113 & LING - I 65 16.77 2009.20 0.444 122.9 352.3 0.103 DOCOBO 06573-3530 21.4669 0.207 33.8 246.9 2006.1936 60.4 0.109 & LING 7744 STT 216 314.93 1941.24 0.544 53.3 234.6 2.136 SCARDIA 10227+1521 1.1431 1.840 144.6 42.1 2009.330 234.0 2.153 et al. (*) - COU 100 78.21 2009.42 0.815 25.5 193.6 0.061 DOCOBO & 14459+2344 4.6030 0.420 102.7 255.0 2007.487 49.2 0.043 TAMAZIAN 13961 SEE 512 82.18 1996.66 0.031 125.8 137.2 0.184 DOCOBO & 20325-1637 4.3806 0.290 99.5 252.2 2007.509 135.6 0.200 TAMAZIAN 15971 STF2909 486.70 1982.73 0.343 133.2 172.8 2.113 SCARDIA 22288-0001 0.7397 3.380 141.7 273.0 2008.734 171.4 2.135 et al. (*) 16648 HU 497BC 180.6 2032.45 0.313 62.4 74.9 0.230 LING 23175+1652 1.9934 0.292 117.1 54.2 2005.8655 73.5 0.231 (*) SCARDIA, PRIEUR, PANSECCHI & ARGYLE ========================================================================================== NEW DOUBLE STAR Discovered by: R. Gili with Interferometry and Lucky imaging at the 76 cm refractor at Nice Observatory. (This star is Bb component of COU 555 AB) STAR Mgn Coord. 2000 Epoch theta rho nights GII 2Bb 13.4 - 13.8 0255390 + 302803 2008.066 155.1 0.454 Interferometry 2008.066 154.7 0.43 Lucky imaging ========================================================================================== ANNOUNCEMENT NEW INSTRUMENTATION FOR THE INVESTIGATION OF BINARY STARS AT THE R. M. ALLER OBSERVATORY *) The EMCCD speckle camera The PhotonMAX EMCCD based speckle camera optimizes very high quantum efficiency along with extremely low read noise. It delivers a very high signal-to-noise ratio through the camera's back-illuminated EMCCD with > 90% quantum efficiency and an on-chip multiplication gain. This effectively reduces read noise to well below 1 e- rms. As a result, the PhotonMAX achieves single photon sensitivity, and single photoelectron events are recorded with a signal-to-noise ratio of about 50. **) The mid-resolution spectrograph ALTAIR This mid-resolution spectrograph in combination with the FLI PL09000 3055x3055 pix CCD detector is designed for detailed studies of stellar spectra with moderate spectral resolution. It can be attached to telescopes of up to 1.5 m aperture. Its 600 grooves/mm grating provides lineal dispersion of 102A/mm and resolution power of R=1000 in the spectral range of 3800-7500A. The 0.6x15mm slit provides high quality spectra for medium brightness stars of 8-12 mag with our Observatory's 0.62m telescope. These spectra can also be used to measure stellar radial velocities with an accuracy of up to 3-4 km/sec which, in some cases, is enough to suspect the presence of a third body in binary systems. Jose-Angel Docobo Director R. M. Aller Observatory ========================================================================================== NOTE Dr. Paul Couteau, Honorary Astronomer of the Observatoire de la C^ote d'Azur (Nice site) and past President of the IAU Commission 26 (1967- 1970), was named as Knight of the French Legion of Honor. This is a French order established by Napoleon Bonaparte in 1802 and is the highest decoration in France. The distinction was handed over to Dr. Couteau by Jean-Claude Pecker, member of the French Science Academy. The ceremony was held at the Nice Observatory on June 11, 2009. The Editors ****************************************************************************************** The deadline for contributions to Information Circular No. 169 is: October 15th 2009 J. A. Docobo (joseangel.docobo@usc.es) J. F. Ling (josefinaf.ling@usc.es) Tel: +34 981592747 Fax: +34 981597054 Observatorio Astronomico "R. M. Aller" P. O. Box 197 Universidade de Santiago de Compostela SPAIN http://www.usc.es/astro ISSN: 1024-7769

INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26 (DOUBLE STARS) INFORMATION CIRCULAR No. 169 (OCTOBER 2009) NEW ORBITS ADS Name P (yr) T e W(2000) 2009 Author RA 2000 DEC n (deg) a (") i (deg) w (deg) Last ob. 2010 ------------------------------------------------------------------------------------------ 829 MAD 1 925. 2127.14 0.389 5.2 1.6 0.784 LING 01006+4719 0.3892 0.930 136.4 94.2 2007.090 1.2 0.781 SLR 1AB 168.0 2003.50 0.716 128.3 117.4 0.390 ALZNER 01061-4643 2.1429 0.938 145.6 296.3 2008.74 110.8 0.420 et al. (*) 2257 STF 333AB 1215.91 704.11 0.317 25.6 209.3 1.374 RICA 02592+2120 0.2961 2.174 84.2 162.1 2007.839 209.4 1.369 - COU1136 250.0 2009.50 0.835 76.9 53.9 0.049 DOCOBO & 14588+3551 1.4400 0.431 109.8 65.9 2007.5060 13.7 0.027 TAMAZIAN - SEE 264A,Ba 145.9 1977.57 0.121 153.7 21.9 0.747 DOCOBO 16057-3252 2.4683 0.869 142.7 34.0 2009.263 19.3 0.758 & LING - COO 197 1132. 1909.8 0.549 9.3 96.7 2.248 ALZNER & 16253-4909 0.3180 3.37 159.6 180.5 2008.42 96.2 2.260 ARGYLE - R 283 652. 1966.16 0.645 72.6 248.4 0.769 ALZNER & 16425-3705 0.5522 1.26 122.4 93.4 2008.41 247.8 0.778 ARGYLE 10459 BU 628 699.23 1807.23 0.371 27.3 267.2 0.533 RICA 17184+3240 0.5149 0.885 116.8 325.8 2009.4404 266.6 0.536 - SEE 342 700. 2059. 0.180 4.6 209.2 0.410 ALZNER & 17534-3454 0.5143 0.52 137.1 184.8 2008.41 208.6 0.411 ARGYLE I - SEE 342 1400. 1975.2 0.225 161.3 209.8 0.436 ALZNER & 17534-3454 0.2571 0.850 123.3 281.8 2008.41 209.3 0.438 ARGYLE II - COU 206 202.0 2002.00 0.773 137.3 279.5 0.048 DOCOBO & 18363+2143 1.7822 0.168 119.2 143.4 2007.5063 272.9 0.049 TAMAZIAN - CHR 94Aa,Ab 25.33 2009.56 0.400 97.5 18.8 0.022 CVETKOVIC 20158+2749 14.2150 0.111 71.5 293.8 2006.5587 76.4 0.046 - HDS2995 68.60 2007.52 0.671 138.7 113.8 0.133 CVETKOVIC 21014+4037 5.2478 0.388 131.8 346.5 2006.520 92.2 0.136 15971 STF2909Bb-P 25.82 2003.40 0.125 20.9 81.7 0.058 SCARDIA 22288-0001 13.9416 0.062 22.3 330.3 2008.734 96.2 0.059 et al. (**) (*) ALZNER, ARGYLE & ANTON (**) SCARDIA, PRIEUR, PANSECCHI & ARGYLE ========================================================================================== ANNOUNCEMENTS NEW BOOK Jean-Claude Thorel, from the Cote d'Azur Observatory, announces the publication of his book: Le ciel d'une Vie. It is a biography of the French astronomer, Robert Jonckheere (1888-1974), the discoverer of 3,350 double stars. The preface was written by Paul Couteau. The book was published by JMG 'Editions Le Temps Pr'esent- collection: Science, jmg-editions@wanadoo.fr (340 pages, 100 photos, 18 euros). Jean-Claude Thorel Cote d'Azur Observatory FORTHCOMING MEETING Within the frame of the International Year of the Astronomy, we will hold an international workshop from December 10-11, 2009 in Santiago de Compostela, Spain. The Workshop is devoted to binaries, "Double and Multiple Stars: Dynamics, Physics, and Instrumentation". More information is available at the web address: http://www.usc.es/astro/ds/ds.html J.A. Docobo R.M. Aller Observatory *********************************************************************** The deadline for contributions to Information Circular No. 170 is: February 15th 2010 J. A. Docobo (joseangel.docobo@usc.es) J. F. Ling (josefinaf.ling@usc.es) Tel: +34 981592747 Fax: +34 981597054 Observatorio Astronomico "R. M. Aller" P. O. Box 197 Universidade de Santiago de Compostela SPAIN http://www.usc.es/astro ISSN: 1024-7769

INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26 (DOUBLE STARS) INFORMATION CIRCULAR No. 170 (FEBRUARY 2010) NEW ORBITS ADS Name P (yr) T e W(2000) 2010 Author RA 2000 DEC n (deg) a (") i (deg) w (deg) Last ob. 2011 ---------------------------------------------------------------------------------------- 111 BU 391AB 616.04 2095.68 0.103 81.75 259.0 1.352 ZIRM 00094-2759 0.5925 1.500 98.98 256.86 2006.940 258.9 1.346 - SEE 3 406.00 1978.45 0.850 267.70 117.0 0.801 HARTKOPF 00098-3347 0.8871 1.119 41.7 77.6 2008.5490 117.7 0.814 & MASON - HDS 33 29.03 2018.12 0.378 177.0 132.0 0.189 CVETKOVIC 00143-2732 12.4010 0.251 59.8 73.9 2008.5432 141.6 0.199 - B 1024 1466. 1926.38 0.814 126.0 73.1 0.410 LING 00149-3209 0.2456 1.586 110.4 311.8 2008.5431 72.3 0.410 238 A 1803AB 35.66 1950.70 0.002 124.10 306.0 0.179 HARTKOPF 00174+0853 10.0950 0.189 95.4 282.0 2008.7670 305.0 0.187 & MASON 281 BU 1015 137.00 1961.65 0.557 291.20 103.8 0.483 HARTKOPF 00206+1219 2.6283 0.333 35.0 10.0 2008.8879 104.7 0.487 & MASON - HDS 56 28.05 1999.30 0.481 96.1 294.0 0.326 CVETKOVIC 00251+4803 12.8323 0.230 164.0 358.9 2007.8257 288.7 0.334 - B 1909 11.35 1995.09 0.005 119.49 311.9 0.175 HARTKOPF 00284-2020 31.7093 0.202 69.8 99.0 2009.6710 334.8 0.109 & MASON 475 D 2AB 2981.00 2007.00 0.923 266.00 42.8 0.067 HARTKOPF 00345-0433 0.1208 2.740 77.5 80.2 2009.7560 55.4 0.090 & MASON 520 BU 395 25.02 1998.78 0.218 291.98 96.7 0.496 HARTKOPF 00373-2446 14.3905 0.675 78.6 318.1 2009.7560 101.0 0.596 & MASON - I 440 196.00 2142.00 0.650 57.00 269.3 0.402 HARTKOPF 00427-6537 1.8350 0.274 157.0 344.0 2009.6710 268.7 0.405 & MASON 822 A 1903AB 143.40 1957.00 0.225 145.00 15.0 0.400 HARTKOPF 00596-0111 2.5107 0.354 20.4 84.0 2008.7729 16.8 0.401 & MASON - HDS 144AB 40.04 2021.53 0.186 127.3 176.0 0.236 CVETKOVIC 01071-0036 8.9916 0.274 135.4 64.9 2008.7673 167.8 0.242 - HU 1342 79.10 1967.70 0.457 153.10 328.6 0.373 HARTKOPF 01094-5636 4.5536 0.260 118.1 4.0 2009.6710 327.6 0.370 & MASON - FIN 337BC 27.03 1995.04 0.215 194.00 38.4 0.131 MASON & 01198-0031 13.3195 0.109 16.8 13.0 2009.6710 47.3 0.128 HARTKOPF - DON 17 1512.00 1949.90 0.947 148.00 287.7 1.282 HARTKOPF 01262-6751 0.2381 2.536 37.0 344.0 2008.7700 288.0 1.297 & MASON 1232 A 314 107.90 1989.31 0.671 193.00 9.8 0.349 HARTKOPF 01343-0827 3.3353 0.296 116.1 44.1 2008.7729 9.1 0.357 & MASON - BU 1000AB-C 123.50 1956.74 0.226 141.30 347.8 1.745 HARTKOPF 01350-2955 2.9152 1.510 35.2 47.5 2008.7670 349.5 1.740 & MASON 1360 BU 509 241.20 1983.48 0.292 221.04 49.8 0.713 HARTKOPF 01437+0934 1.4923 0.900 118.0 94.0 2008.7729 48.8 0.726 & MASON - I 265 775.00 1977.26 0.744 222.60 225.0 0.578 HARTKOPF 02009-4350 0.4647 1.209 68.9 271.2 2008.6060 225.4 0.587 & MASON - HJ 3494 475.00 1918.20 0.494 80.30 245.1 2.225 HARTKOPF 02198-3527 0.7583 2.119 146.2 72.0 2008.7729 244.6 2.236 & MASON 2236 A 2413 124.40 1930.27 0.449 185.10 158.1 0.538 HARTKOPF 02572+0153 2.8940 0.632 70.1 101.3 2008.8879 159.3 0.547 & MASON 2283 A 2611 74.40 1950.00 0.510 220.00 44.4 0.172 HARTKOPF 03003-1118 4.8394 0.160 46.4 314.0 2008.7679 47.0 0.165 & MASON 2911 HU 27 276.00 2083.00 0.673 184.10 328.9 0.401 HARTKOPF 03590+0947 1.3021 0.809 77.7 261.6 2008.8879 329.8 0.406 & MASON - CHR 14 40.90 1992.97 0.853 155.90 15.1 0.265 MASON & 04119+2338 8.8020 0.310 71.4 73.3 2008.7732 17.2 0.258 HARTKOPF - HDS 552 32.7 1994.23 0.653 128.4 348.7 0.114 CVETKOVIC 04195+3800 10.9794 0.183 104.6 288.8 2008.0688 343.7 0.125 3151 A 1835 128.76 1958.36 0.532 76.8 18.1 0.200 ZIRM 04216+0658 2.7959 0.220 56.6 121.7 1996.8687 19.6 0.203 3191 BU 1235 218.31 1973.93 0.123 57.1 256.3 0.097 ZIRM 04245+2244 1.6490 0.424 85.3 184.3 1996.8712 259.2 0.086 - WOR 15 40.74 1995.54 0.793 140.2 1.9 0.471 ZIRM 04268+1240 8.8365 0.349 131.6 316.9 2007.8260 0.0 0.487 3241 I 413 142.40 1968.60 0.750 95.90 323.1 0.675 HARTKOPF 04275-2427 2.5279 0.484 31.7 69.7 2008.7729 323.8 0.680 & MASON - B 2092AB 12.11 1986.90 0.777 304.90 220.8 0.101 HARTKOPF 04340-5503 29.7352 0.201 46.0 40.0 2008.7729 3.9 0.035 & MASON 3326 A 1840AB 247.00 1996.20 0.404 118.20 13.4 0.146 HARTKOPF 04362+0814 1.4600 0.267 145.3 53.8 2008.7700 9.8 0.149 & MASON 3329 STT 86 828.23 2094.65 0.228 139.4 0.4 0.472 ZIRM 04366+1946 0.4347 0.612 146.3 190.4 2008.8498 359.8 0.472 3614 HU 445 166.20 1892.00 0.037 290.90 136.5 0.389 HARTKOPF 05017+2050 2.1665 0.419 45.0 323.0 2008.8500 138.3 0.385 & MASON 3728 A 2636 390.00 1947.50 0.841 120.00 348.8 0.349 HARTKOPF 05089+0313 0.9225 0.350 42.0 82.0 2008.7729 349.2 0.351 & MASON - I 275 729.09 2002.31 0.530 40.0 222.5 0.803 ZIRM 05234-3640 0.4938 1.705 130.1 161.2 2008.7703 221.4 0.806 - I 345 123.2 1995.50 0.692 30.5 213.2 0.257 ARGYLE 05248-5219 2.9221 0.287 124.8 47.8 2008.773 211.8 0.269 & ALZNER - SEE 53 81.94 1992.59 0.413 288.00 86.3 0.201 HARTKOPF 05276-2055 4.3937 0.188 11.8 35.0 2008.7700 89.7 0.207 & MASON - RST 141 134.00 1966.50 0.746 64.00 264.3 0.532 HARTKOPF 05352-4657 2.6817 0.357 47.5 43.0 2008.7729 264.8 0.534 & MASON 4279 BU 1052 191.90 2005.60 0.126 186.40 185.7 0.602 HARTKOPF 05417-0254 1.8760 0.689 99.3 353.9 2009.2650 185.3 0.600 & MASON - HDS 787 12.10 2000.43 0.179 149.80 338.1 0.112 MASON & 05525-0217 29.7521 0.116 54.0 289.8 2009.2650 2.1 0.083 HARTKOPF - HU 1570 221.50 1955.83 0.748 155.00 345.1 0.947 HARTKOPF 05580-5212 1.6252 0.672 22.9 34.0 2008.7729 345.6 0.955 & MASON - R 65AB 53.13 1969.44 0.977 140.00 260.2 0.584 HARTKOPF 06298-5014 6.7764 0.630 121.5 67.1 2008.7700 259.3 0.559 & MASON - HDS 930 13.16 1999.12 0.282 123.9 285.5 0.072 CVETKOVIC 06426+3955 27.3530 0.077 150.0 295.8 2007.8207 252.2 0.057 6526 A 1580 399.00 1965.00 0.290 117.00 291.1 0.290 HARTKOPF 08017-0836 0.9014 0.351 38.0 104.0 2009.2600 292.1 0.292 & MASON - CHR 143Aa,Ab 25.90 1987.68 0.610 167.30 334.8 0.057 MASON & 08125-4616 13.8996 0.082 76.9 259.0 2009.2625 340.0 0.056 HARTKOPF 6871 BU 205AB 142.90 1954.38 0.290 177.70 294.0 0.586 HARTKOPF 08331-2436 2.5186 0.526 150.8 90.1 2009.2620 292.3 0.587 & MASON - RST3603 97.70 1964.60 0.383 146.00 327.6 0.367 HARTKOPF 08431-1225 3.6861 0.266 157.0 5.0 2009.2600 326.0 0.367 & MASON 6989 HU 120 197.60 1983.19 0.375 140.20 315.6 0.410 HARTKOPF 08462-1422 1.8222 0.475 45.6 82.5 2009.2600 317.2 0.417 & MASON 7021 BU 1068AB 416.00 1964.40 0.608 151.70 322.7 0.360 HARTKOPF 08495+0852 0.8648 0.448 128.1 82.1 2009.2600 322.1 0.363 & MASON 7077 A 1754 452.00 1975.10 0.510 115.80 123.9 0.352 HARTKOPF 08542-0229 0.7973 0.530 46.0 292.0 2009.2600 124.9 0.355 & MASON - FIN 348 40.00 1984.38 0.548 222.10 272.7 0.169 MASON & 09243-3926 9.0000 0.127 149.7 107.0 2009.2625 268.9 0.167 HARTKOPF 7384 HO 366AB 353.11 2001.30 0.764 9.8 250.9 0.136 ZIRM 09279+3128 1.0195 0.404 19.4 166.1 1997.1315 256.1 0.144 7706 I 851 117.00 1953.90 0.782 63.00 236.2 0.381 HARTKOPF 10163-2859 3.0775 0.216 136.0 11.0 2009.2629 235.7 0.381 & MASON 7871 STT 224AB 225.30 2053.10 0.086 153.50 141.6 0.512 HARTKOPF 10397+0851 1.5981 0.534 137.8 94.3 2009.2650 140.3 0.509 & MASON 7896 A 2768 81.30 1976.71 0.549 59.70 250.1 0.591 HARTKOPF 10426+0335 4.4306 0.394 142.5 358.4 2009.2650 248.8 0.596 & MASON 7982 BU 1076 137.50 1921.20 0.710 219.20 53.8 1.139 HARTKOPF 10557+0044 2.6188 0.754 125.1 322.3 2009.2650 53.4 1.136 & MASON 8096 BU 916 1386.46 1991.78 0.787 143.7 179.6 0.267 ZIRM 11141-1526 0.0003 1.177 45.2 350.2 2004.2010 181.8 0.268 8138 STN 22 714.60 2063.90 0.630 175.5 351.5 3.896 ZIRM 11214-2027 0.5038 5.896 47.4 272.1 1998.37 352.1 3.857 8145 A 2776AB 97.00 1998.00 0.942 192.00 55.2 0.155 HARTKOPF 11230+0408 3.7210 0.190 53.6 75.0 2009.2600 56.3 0.161 & MASON - I 883 154.30 1976.81 0.640 129.80 227.4 0.226 HARTKOPF 11268-5310 2.3326 0.224 35.3 311.7 2009.2600 228.8 0.230 & MASON - RST4944 447.00 2011.00 0.535 287.00 240.9 0.146 HARTKOPF 11279-0142 0.8058 0.405 131.0 61.0 2009.2600 237.3 0.142 & MASON 8332 A 2579 145.30 1902.11 0.703 190.80 39.4 0.402 HARTKOPF 11532-1540 2.4772 0.403 115.6 284.2 2009.2660 38.6 0.402 & MASON 8481 BU 920 873.04 1764.26 0.166 142.2 306.1 1.857 RICA 12158-2321 0.4124 2.012 63.5 28.0 2009.2599 306.3 1.864 - DAW 63 56.89 1964.10 0.289 199.00 93.2 0.335 HARTKOPF 12396-3717 6.3276 0.368 22.6 359.0 2009.2629 100.3 0.323 & MASON 8757 BU 341 58.98 1964.10 0.988 136.2 131.6 0.583 ZIRM 13038-2035 6.1038 0.718 92.8 234.5 2009.2600 131.5 0.556 - FIN 297AB 61.30 1969.60 0.687 180.00 0.1 0.238 MASON & 13145-2417 5.8728 0.152 20.0 345.0 2008.5394 1.7 0.234 HARTKOPF - COU 401 98.70 2007.42 0.700 165.4 331.8 0.109 DOCOBO & 13482+2248 3.6474 0.401 76.8 70.9 2007.4868 337.5 0.154 TAMAZIAN - RST3852 95.00 1985.80 0.278 150.60 348.3 0.228 HARTKOPF 13539-1440 3.7887 0.225 128.9 31.2 2009.2660 346.2 0.234 & MASON - FIN 370 18.57 2006.54 0.201 284.00 159.4 0.120 MASON & 13574-6229 19.3861 0.137 152.2 32.0 2009.2627 140.0 0.134 HARTKOPF 9073 A 2167 109.40 1924.80 0.612 246.90 100.3 0.201 HARTKOPF 13583+0213 3.2896 0.228 119.5 270.3 2009.2600 98.6 0.201 & MASON - FIN 309 12.93 1995.25 0.643 281.90 90.6 0.176 MASON & 14462-2111 27.8444 0.181 25.9 39.5 2009.2628 106.3 0.226 HARTKOPF 9443 A 2172 168.30 2000.40 0.177 128.50 130.3 0.164 HARTKOPF 14565+0255 2.1391 0.196 115.0 326.0 2009.2629 129.1 0.165 & MASON - FIN 372 39.62 1993.81 0.304 228.00 1.3 0.103 MASON & 14567-6247 9.0863 0.086 153.3 68.6 2009.2603 355.9 0.103 HARTKOPF - HJ 4757 258.00 2075.00 0.931 116.00 1.7 0.823 HARTKOPF 15234-5919 1.3933 2.576 100.4 264.9 2009.2600 0.8 0.823 & MASON - COU 798 154.7 1983.37 0.357 46.1 199.4 0.171 DOCOBO & 15347+2655 2.3271 0.259 66.7 24.7 2007.5061 201.3 0.179 TAMAZIAN - CHR 51 50.60 2002.78 0.832 74.00 246.4 0.328 MASON & 15513-0305 7.1146 0.400 98.1 72.8 2009.2657 245.6 0.337 HARTKOPF - MCA 42CE 39.00 2034.20 0.029 184.00 320.2 0.116 MASON & 16054-1948 9.2308 0.133 41.1 350.0 2009.2629 328.8 0.122 HARTKOPF 10017 HU 481 119.50 1997.95 0.567 172.60 271.5 0.300 HARTKOPF 16212+2259 3.0130 0.464 146.8 160.5 2009.2629 266.7 0.313 & MASON 10095 A 693 96.40 1991.55 0.273 221.70 138.3 0.121 HARTKOPF 16318-0216 3.7351 0.196 129.2 345.4 2009.2629 132.4 0.122 & MASON - FIN 355 14.22 1985.98 0.491 190.41 197.4 0.326 MASON & 17156-3836 25.3254 0.253 115.2 135.2 2009.2606 191.3 0.300 HARTKOPF - COU 315 90.50 2012.83 0.975 103.4 127.8 0.103 DOCOBO & 17161+2316 3.9779 0.506 100.4 89.3 2007.4927 123.5 0.090 TAMAZIAN - HDO 275 98.60 1986.76 0.319 266.30 87.2 0.673 HARTKOPF 17443-7213 3.6505 0.629 150.1 58.6 2009.2629 84.7 0.684 & MASON 10858 STF3128AB 409.00 1947.60 0.942 214.00 50.7 1.214 HARTKOPF 17530-0755 0.8807 0.965 153.0 356.0 2009.2660 50.5 1.225 & MASON - RST5099 43.40 1965.80 0.499 122.40 275.5 0.098 HARTKOPF 18044-5953 8.2895 0.269 65.5 106.4 2009.2629 291.1 0.139 & MASON 11260 HU 197 135.40 1930.80 0.057 238.02 67.0 0.500 HARTKOPF 18197+1016 2.6588 0.487 125.7 317.5 2009.2660 65.5 0.503 & MASON 11468 A 1377AB 228.1 1918.53 0.437 55.2 124.5 0.253 SCARDIA 18339+5221 1.5783 0.268 49.3 272.0 2008.711 125.6 0.253 et al. (*) 11640 FIN 332Aa,Ab 27.03 1994.20 0.790 136.2 312.0 0.160 MASON & 18455+0530 13.3185 0.094 106.0 10.0 2009.2634 311.2 0.155 HARTKOPF 11640 FIN 332Ba,Bb 38.60 1967.90 0.867 111.8 6.8 0.043 MASON & 18455+0530 9.3264 0.105 117.2 311.2 2009.2634 356.6 0.053 HARTKOPF - MCA 53 33.65 1989.71 0.333 174.30 71.3 0.040 MASON & 18465-0058 10.6984 0.219 97.9 251.7 2009.2634 38.7 0.054 HARTKOPF - HEI 568 205.16 2014.60 0.230 94.5 268.8 0.307 ZIRM 19070+1104 1.7547 0.399 134.3 201.4 2008.5373 266.7 0.305 12803 STF2574 685.13 2057.26 0.670 107.6 92.9 0.507 ZIRM 19406+6240 0.5254 1.302 78.9 48.2 1999.7420 93.4 0.511 - CHR 88 20.31 1996.06 0.047 202.00 335.9 0.083 MASON & 19407-0037 17.7253 0.085 158.3 346.0 2009.2661 318.2 0.081 HARTKOPF 13048 B 454 101.50 1960.60 0.120 159.93 321.8 0.085 HARTKOPF 19531-2528 3.5467 0.316 85.6 286.9 2009.2629 325.0 0.101 & MASON 13493 BU 1205 139.90 1983.50 0.384 231.24 33.9 0.279 HARTKOPF 20123-0806 2.5728 0.486 78.3 10.4 2008.5430 35.3 0.299 & MASON 13717 BAR 12Ba,Bb 538.62 2073.19 0.070 96.6 63.2 0.541 ZIRM 20210-1447 0.6684 0.943 112.6 107.7 2008.7724 62.4 0.534 13850 A 730 88.44 1932.47 0.818 56.6 283.4 0.150 SCARDIA 20251+5936 4.0724 0.197 129.6 266.5 2008.802 280.7 0.145 et al. (*) (I) 13850 A 730 163.0 2037.06 0.066 150.1 98.8 0.125 SCARDIA 20251+5936 2.2086 0.224 118.7 135.5 2008.802 95.3 0.121 et al. (*) (II) - FIN 336 55.00 1967.60 0.672 150.80 127.6 0.152 MASON & 20311-1503 6.5455 0.158 66.2 102.4 2009.6705 129.7 0.152 HARTKOPF - B 997 64.20 1953.70 0.188 275.00 182.7 0.130 HARTKOPF 20507-3116 5.6083 0.195 41.4 330.0 2008.7729 192.2 0.128 & MASON 14492 HU 83 174.00 2055.00 0.210 101.50 86.3 0.254 HARTKOPF 20591-1313 2.0729 0.251 47.0 93.6 2008.7670 87.7 0.254 & MASON - BU 766AB 464.66 2042.14 0.201 113.8 183.3 0.272 ZIRM 21244-4100 0.7748 0.836 111.8 315.3 1999.7811 180.7 0.276 14954 BU 164AB 361.54 2023.74 0.875 79.3 131.7 0.085 ZIRM 21251+0923 0.9957 0.555 104.5 47.7 2008.7723 126.6 0.086 - B 1007 119.10 1971.70 0.237 197.40 323.2 0.128 HARTKOPF 21273-3218 3.0224 0.158 50.8 337.6 2008.7670 326.0 0.131 & MASON - HDS3053 20.30 1994.70 0.370 154.00 161.3 0.187 MASON & 21274-0701 17.7340 0.171 54.5 140.0 2009.6707 170.6 0.160 HARTKOPF 16057 STF2924 218.8 1971.59 0.272 81.2 200.7 0.175 SCARDIA 22330+6955 1.6453 0.759 77.7 2.5 2008.939 206.7 0.188 et al. (*) 16130 A 2695 124.00 2022.70 0.660 283.40 255.8 0.094 HARTKOPF 22384-0754 2.9023 0.255 76.6 50.9 2009.6710 259.3 0.099 & MASON 16157 A 2099 256.00 1917.90 0.454 348.30 163.6 0.779 HARTKOPF 22400+0113 1.4065 0.604 76.9 2.0 2008.8879 163.8 0.785 & MASON 16165 HU 494 550.00 1942.00 0.823 99.00 331.6 0.465 HARTKOPF 22406+0632 0.6545 0.500 29.0 90.0 2008.7700 332.0 0.469 & MASON 16242 BU 711 800. 1843.48 0.629 144.2 351.0 2.553 DOCOBO 22455+1112 0.4500 2.321 135.2 2.2 2005.688 350.7 2.564 & LING - HDO 301 26.50 1962.46 0.534 194.70 66.8 0.202 HARTKOPF 22500-3248 13.5865 0.199 148.9 257.0 2008.7700 56.5 0.186 & MASON - MCA 73 18.71 1991.52 0.061 110.30 24.3 0.029 MASON & 22535-1137 19.2410 0.079 66.9 277.0 2008.7670 68.0 0.040 HARTKOPF - RST3320 108.40 2001.94 0.463 156.00 133.1 0.189 HARTKOPF 23099-2227 3.3217 0.282 162.4 314.0 2009.6710 127.1 0.197 & MASON 16576 HU 197AB 170.26 1843.59 0.456 120.4 266.6 0.536 RICA 23114+3813 2.1144 0.419 106.7 249.6 2009.736 266.0 0.540 - HEI 88 35.46 2003.12 0.658 135.7 168.2 0.196 CVETKOVIC 23209+1643 10.1511 0.173 28.1 253.6 2007.8200 173.1 0.209 - FIN 359 22.81 1988.72 0.422 209.50 340.0 0.044 MASON & 23529-0309 15.7826 0.083 133.7 298.3 2009.6708 291.0 0.034 HARTKOPF (*) SCARDIA, PRIEUR, PANSECCHI & ARGYLE ========================================================================================== PAPERS PUBLISHED IN 2009 1. ABT, H. A.: Evidence that Most Binaries Do not Evolve after the Primaries Reach the Main Sequence. Pub. Astron. Soc. of the Pacific 121, 248 (2009). 2. ABT, H. A.: Stellar Rotation versus Duplicity in Open Cluster Early-Type Stars. Pub. Astron. Soc. of the Pacific 121 (886), 1307 (2009). 3. ABT, H. A.: MK Classifications of Spectroscopic Binaries. Astrophys. J. Sup. Ser. 180 (1), 117 (2009). 4. ABT, H. A.: Why are There Normal Slow Rotators Among A-Type Stars? Astron. J. 138 (1), 28 (2009). 5. BALEGA, Y. Y.; LEUSHIN, V. V. & KUZNETSOV, M. K.: Evolutionary status and chemical composition of the atmosphere of the spectroscopic and speckle interferometric binary HD 10009. Astrophys. Bull. 64 (3), 229 (2009). 6. BURKE, D. et al.: An Improved Technique for the Photometry and Astrometry of Faint Companions. Pub. Astron. Soc. of the Pacific 121, 767 (2009). 7. CONNELLEY, M. S., REIPURTH, B. & TOKUNAGA, A. T.: An Adaptive Optics Survey For Close Protostellar Binaries. Astron. J. 138, 1193 (2009). 8. CSIZMADIA, Sz. et al.: Interferometric Observations of the Hierarchical Triple System Algol. Astrophys. J. 705, 436 (2009). 9. CVETKOVIC, Z.; VINCE, I. & NINKOVIC, S.: Orbit of Binary 15 Monocerotis. Pub Aston. Obs. Belgrade. 86 331 (2009). 10. DAVIDSON J. W. et al.: A Photometric Analysis of Seventeen Binary Stars Using Speckle Imaging. Astron. J. 138, 1354 (2009). 11. DOCOBO, J. A. & LING, J. F.: Binary Stars with Components of Solar Type: 25 Orbits and System Masses. Astron. J. 138, 1159 (2009). 12. DUPUY, T. J.; LIU, M. C. & IRELAND, M. J.: Dynamical Mass of the Substellar Benchmark Binary HD 130948BC. Astrophys. J. 692, 729 (2009). 13. EVANS, N. R., MASSA, D. & PROFFITT, C.: Massive Star Multiplicity: The Cepheid W Sgr. Astron. J. 137, 3700 (2009). 14. FEKEL, F. C. & WILLMARTH, D. W.: The Spectroscopic Orbit of SAO 167450, Visual Companion of AA Ceti. Pub. Astron. Soc. of the Pacific 121 (886), 1359 (2009). 15. FEKEL, F. C., TOMKIN, J. & WILLAMSON, M. H.: New Precision Orbits of Bright Double-Lined Spectroscopic Binaries. III. HD 82191, ! Draconis, and 108 Herculis. Astron. J. 137, (4), 3900 (2009). 16. FEKEL, F. C. et al: HR 8257: A Three-Dimensional Orbit and Basic Properties. Astrophys. J. 695, 1527 (2009). 17. FRANKOWSKI, A., et al.: Spectroscopic binaries among Hipparcos M giants. II. Binary frequency. Astron. Astrophys. 498 (2), 479 (2009). 18. FAMAEY, B, et al.: Spectroscopic binaries among Hipparcos M giants. I. Data, orbits, and intrinsic variations. Astron. Astrophys. 498 (2), 627 (2009). 19. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities Paper 204: HR 738, HR 831, HR 5692, and HR 7252. The Observatory 129, 6 (2009). 20. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities Paper 205: HD 9519, delta Aurigae, HR 4427, and HR 7795. The Observatory 129, 54 (2009). 21. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities Paper 206: HD 103684, HD 107496, HD 111628, and HD 116479. The Observatory 129,127 (2009). 22. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities Paper 207: 58 Piscium, 31 Vulpeculae, and 70 Pegasi. The Observatory 129, 198 (2009). 23. GRIFFIN, R. F.: Spectroscopic binary orbits from photoelectric radial velocities Paper 208: HD 3065, HD 40602, HD 134738, and HD 216525. The Observatory 129, 264 (2009). 24. GRIFFIN, R. F. & McCLURE, R. D.: Spectroscopic binary orbits for the Henry Draper Catalogue stars. The Observatory 129, 28 (2009). 25. HALWACHS J.-L. et al: Local effects in astrometric binary orbits: perspective transformation and light-travel time. Mont. Not. RAS 394, 1075 (2009). 26. HARTKOPF, W. I. & MASON B. D.: Speckle Interferometry at Mount Wilson Observatory: Observations Obtained in 2006-2007 and 35 New Orbits. Astron. J. 138, 813 (2009). 27. HELMINIAK, K. G. et al: Orbital and physical parameters of eclipsing binaries from the All-Sky Automated Survey catalogue - I. A sample of systems with components' masses between 1 and 2 Msolar. Mont. Not. RAS 400, 969 (2009). 28. HINKLE, K. H. FEKEL, F. C. & JOYCE R. R.: Infrared Spectroscopy of Symbiotic Stars. VII. Binary Orbit and Long Secondary Period Variability of CH Cygni. Astrophys. J. 692, 1360 (2009). 29. HORCH, E. P. et al: Observations of Binary Stars with the Differential Speckle Survey Instrument. I. Instrument Description and First Results. Astron. J. 137, 5057 (2009). 30. JAO, W-C. et al: Cool Subdwarf Investigations. II. Multiplicity. Astron. J. 137, 3800 (2009). 31. JORISSEN, A. et al.: Spectroscopic binaries among Hipparcos M giants. III. The eccentricity - period diagram and mass-transfer signatures. Astron. Astrophys. 498 (2), 489 (2009). 32. KISELEV, A. A.; ROMANENKO, L. G. & GORYNYA, N. A.: A dynamical study of the wide hierarchic triple star ADS 10288. Astron. Reports 53 (12), 1136 (2009). 33. KISELEV, A. A.; ROMANENKO, L. G. & KALINICHENKO, O. A.: A dynamical study of 12 wide visual binaries. Astron. Reports 53, 126 (2009). 34. KRAUS, S. et al.: Tracing the young massive high-eccentricity binary system theta 1 Orionis C through periastron passage. Astron. Astrophys. 497 (1), 195 (2009). 35. KONACKI, M. et al.: The Radial Velocity Tatooine Search for Circumbinary Planets: Planet Detection Limits for a Sample of Double-Lined Binary Stars. Initial Results from Keck I/Hires, Shane/CAT/Hamspec, and TNG/Sarg Observations. Astrophys. J. 704, 513 (2009). 36. MAKAROV, V. V. & EGGLETON, P. P.: The Origin of Bright X-ray Sources in Multiple Stars. Astrophys. J. 703, 1760 (2009). 37. MASON, B. D. et al: The High Angular Resolution Multiplicity of Massive Stars. Astron. J. 137, 3358 (2009). 38. NOVAKOVIC, B.; PAVLOVIC, R. & CVETKOVIC, Z.: Review of CCD Observations of Binaries at NAO Rozhen. Pub Aston. Obs. Belgrade. 86 337 (2009). 39. ORLOV, V. G. et al.: Speckle Interferometry at the Observatorio Astron'omico Nacional. I. Rev. Mex. A. A. 45 (1), 155 (2009). 40. PARKER et al: Local effects in astrometric binary orbits: perspective transformation and light-travel time. Mont. Not. RAS 397, 1577 (2009). 41. PRIEUR, R. J. et al: Do binaries in clusters form in the same way as in the field?. Mont. Not. RAS 395, 970 (2009). 42. PRIEUR, J.-L. et al: Speckle observations with PISCO in Merate - VII. Astrometric measurements of visual binaries in 2007. Mont. Not. RAS 395, 907 (2009). 43. RAGHAVAN, D. et al.: The Visual Orbit of the 1.1 Day Spectroscopic Binary sigma 2 Coronae Borealis from Interferometry at the Chara Array. Astrophys. J. 690, 394 (2009). 44. RAMM, D. J. et al.: Spectroscopic orbits for K giants beta Reticuli and nu Octantis: what is causing a low-amplitude radial velocity resonant perturbation in nu Oct?. Monthly Notices of the RAS 394 (3), 1695 (2007). 45. SCARDIA, R. et al: Speckle observations with PISCO in Merate: VI. Astrometric measurements of visual binaries in 2006. Mont. Not. RAS 330, 55 (2009). 46. SCHAEFER, G. et al: New Frontiers in Binary Stars: Science at High Angular Resolution. astro2010S, 259 (2009). 47. TEN BRUMMELAAR, T. et al: Astrometry and Photometry of Binary Exoplanet Host Stars. AAS Meeting 214, 1122 (2009). 48. ZASCHE, P. et al.: A Catalog of Visual Double and Multiple Stars With Eclipsing Components. Astron. J. 138, 664 (2009). ========================================================================================== JOHN DAVIS (1932 - 2010) Professor John Davis passed away peacefully in his sleep on Friday, 15 January 2010 in Sydney Australia. Prof. Davis obtained his Ph.D. from the University of Manchester and after a short post-doc moved to Australia in the early 1960's to join Hanbury Brown in the development and use of the Intensity Interferometer, for in his own words "no young post-doc in his right mind would have said anything other than yes, please!". The Intensity Interferometer was operational from 1963-1974, after which Prof. Davis led the effort along with William Tango to establish its successor, the Sydney University Stellar Interferometer whose work is ongoing. John's career is summarized in his own words in the personal remarks following the text of his Ellery Lecture from 2006 (Pub. Astron. Soc. Aus. 23, 94-104, 2006 - http : //www.publish.csiro.au/?act = viewf ile&f ileid = AS06012.pdf ). Prof. Davis was engaged in active research till the end, and his influence on the field of high resolution Astronomy, both in his research and in the training of several generations of interferometry "black belts" will be felt for many years to come. He is survived by his wife Madeline and his children, and will be sorely missed by those of us fortunate enough to have known him. Theo ten Brummelaar The CHARA Array on Mount Wilson Georgia State University ========================================================================================== FORTHCOMING MEETING First announcement Ever wondered what you could do with the 100 million binaries that will be observed with the forthcoming Gaia space astrometry mission from the European Space Agency? Ever wondered whether your favorite binary will be extensively observed or whether binary members will improve or degrade the results you expect for your favorite star cluster? The GREAT (http://www.ast.cam.ac.uk/GREAT) working group on Binaries and Multiple Systems is setup to deal with these kinds of questions. It gathers scientists interested in using the Gaia results for their scientific exploitation as well as those working on processing the observations in the first place. This think tank welcomes anybody interested in double and multiple stars in anticipation of the Gaia harvest. Belonging to any GREAT working group does not offer any privileged/early access to the Gaia data but it increases the likelihood of being ready to efficiently interpret them whenever they become public. The kick-off meeting of the GREAT - Binaries and Multiple Systems working group will take place in Brussels (Belgium) in May 17 and 18. Details at: http://camd08.ast.cam.ac.uk/Greatwiki/WGB3BinariesAndMultipleSystems Looking forward to welcoming you in this working group, D. Pourbaix & F. Arenou ========================================================================================== NEW OFFICERS FOR THE COMMISSION 26 EXECUTIVE BODIES During the 27th General Assembly of the IAU, the following Officers of the Commission and its Organizing Committee (OC) took their charges: Name Charge Term E-mail address -------------------------------------------------------------------------------- Jose Docobo President 2009 - 2012 joseangel.docobo@usc.es Brian Mason Vice-President 2009 - 2012 bdm@usno.navy.mil Frederic Arenou OC Member 2009 - 2015 Frederic.Arenou@obspm.fr Marco Scardia OC Member 2009 - 2015 scardia@merate.mi.astro.it Vakhtang Tamazian OC Member 2009 - 2015 vakhtang.tamazian@usc.es Yuri Balega (balega@sao.ru), Dimitri Pourbaix (pourbaix@astro.ulb.ac.be), and Colin Scarfe (scarfe@uvic.ca) continue to serve as Organizing Committee members until 2012. ****************************************************************************************** The deadline for contributions to Information Circular No. 171 is: June 15th 2010 J. A. Docobo (joseangel.docobo@usc.es) J. F. Ling (josefinaf.ling@usc.es) Tel: +34 981592747 Fax: +34 981597054 Observatorio Astronomico "R. M. Aller" P. O. Box 197 Universidade de Santiago de Compostela SPAIN http://www.usc.es/astro ISSN: 1024-7769

INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26 (DOUBLE STARS) INFORMATION CIRCULAR No. 171 (JUNE 2010) NEW ORBITS ADS Name P (yr) T e W(2000) 2010 Author RA 2000 DEC n (deg) a (") i (deg) w (deg) Last ob. 2011 ---------------------------------------------------------------------------------------- 2578 A 983 587. 1964.83 0.591 150.8 140.3 0.469 DOCOBO 03310+2937 0.6133 0.748 63.2 245.3 2007.8181 140.8 0.477 & LING - COU 691 55.88 1961.93 0.141 66.5 252.3 0.140 DOCOBO 03423+3141 6.4424 0.155 66.2 258.2 2007.8181 255.6 0.133 & LING 3058 HU 302 237.2 1883.11 0.960 141.0 54.2 0.239 DOCOBO 04132+2258 1.5177 0.748 80.6 89.6 2007.818 54.8 0.239 & CAMPO 3438 A 1544AB 79.10 1961.30 0.424 107.7 187.9 0.170 DOCOBO 04475+4324 4.5512 0.164 138.9 78.3 2007.802 185.0 0.169 - FIN 320 43.36 2006.36 0.852 20.5 156.6 0.089 DOCOBO & 04515-3454 8.3026 0.248 108.6 110.2 2008.770 146.0 0.091 ANDRADE 8239 BU 456 706.0 1914.42 0.748 43.0 159.4 1.104 SCARDIA 11368-1221 0.5099 1.69 53.3 327.1 2009.260 159.9 1.113 et al. (*) - B 1215 57.08 1938.18 0.641 67.0 348.1 0.203 RICA 12392-4022 6.3069 0.225 48.7 125.5 2009.2626 351.8 0.211 10227 BU 627A-BC 1977.3 1966.00 0.329 77.6 36.5 1.996 RICA 16492+4559 0.1821 4.914 63.8 280.2 2009.4404 36.9 2.009 12079 HO 98AB 628. 2022.21 0.497 83.1 65.2 0.203 LING 19083+2706 0.5733 0.433 123.0 54.2 2007.668 64.0 0.199 12348 A 102A 429. 1992.26 0.653 67.5 247.9 0.170 LING 19222-0735 0.8392 0.352 40.0 106.9 2008.5482 249.9 0.175 - KUI 103 29.16 2006.23 0.557 96.8 5.3 0.385 DOCOBO 21000+4004 12.3457 0.725 53.0 156.1 2007.699 24.1 0.453 & LING - FIN 329 17.60 1957.67 0.933 35.4 49.4 0.081 DOCOBO & 21158-5316 20.4545 0.244 107.8 98.5 2008.606 188.9 0.065 ANDRADE - FIN 330AB 20.50 2006.90 0.512 27.3 53.4 0.069 DOCOBO & 21477-3054 17.5610 0.112 110.6 190.5 2008.770 43.7 0.098 ANDRADE I - FIN 330AB 20.84 2009.07 0.907 71.1 235.6 0.070 DOCOBO & 21477-3054 17.2745 0.136 119.3 69.9 2008.770 226.7 0.101 ANDRADE II (*) SCARDIA, PRIEUR, PANSECCHI, & ARGYLE ========================================================================================== ANNOUNCEMENT FORTHCOMING MEETING Taking into account the excellent results of the meeting held in Santiago de Compostela last year, it is our intention to promote a similar mini-workshop at the end of January 2011. Event information will be announced by e-mail in September. J. A. Docobo ****************************************************************************************** The deadline for contributions to Information Circular No. 172 is: October 15th 2010 J. A. Docobo (joseangel.docobo@usc.es) J. F. Ling (josefinaf.ling@usc.es) Tel: +34 981592747 Fax: +34 981597054 Observatorio Astronomico "R. M. Aller" P. O. Box 197 Universidade de Santiago de Compostela SPAIN http://www.usc.es/astro ISSN: 1024-7769

INTERNATIONAL ASTRONOMICAL UNION COMMISSION 26 (DOUBLE STARS) INFORMATION CIRCULAR No. 172 (OCTOBER 2010) NEW ORBITS ADS Name P (yr) T e W(2000) 2010 Author RA 2000 DEC n (deg) a (") i (deg) w (deg) Last ob. 2011 ---------------------------------------------------------------------------------------- - HDS 17 12.81 2006.30 0.527 57.0 90.1 0.114 CVETKOVIC 00085+3456 28.0938 0.090 150.9 173.8 2007.8201 78.6 0.128 - COU 547 265.0 1984.9 0.737 31.7 50.0 0.128 ZIRM 00320+2740 1.3585 0.322 79.9 295.9 2007.9890 51.1 0.126 1016 A 2102 132.5 2061.5 0.175 146.1 114.8 0.211 DOCOBO 01158+0947 2.7170 0.575 100.0 225.0 2008.7699 111.0 0.192 & LING 1158 BU 1164AB 63.73 2008.19 0.771 163.9 221.2 0.039 DOCOBO 01277+0521 5.6488 0.291 107.7 196.0 2008.7699 191.7 0.082 & LING 1323 A 2404 114.3 1960.9 0.073 179.2 7.3 0.221 ZIRM 01409+0138 3.1496 0.235 104.7 352.4 1996.8657 6.5 0.226 - MCA 6 40.97 1989.39 0.374 43.5 307.9 0.110 CVETKOVIC 02145+6631 8.7860 0.084 20.6 84.1 2008.0688 312.5 0.117 2242 BU 741AB 149.89 1870.68 0.602 163.5 342.4 0.896 RICA 02572-2458 2.4018 1.425 83.0 260.8 2009.707 343.0 0.860 - HDS 433 51.78 2008.41 0.569 109.9 158.5 0.202 CVETKOVIC 03272+0944 6.9525 0.442 24.6 6.0 2008.7701 181.1 0.224 - RST2347 150.3 2008.7 0.498 155.5 181.4 0.087 ZIRM 04318-2407 2.3952 0.197 128.0 310.8 1993.0923 175.2 0.093 - I 1489 32.90 1999.53 0.141 80.3 102.0 0.144 DOCOBO 04395-4507 10.9422 0.256 77.2 292.8 2008.773 111.8 0.112 & CAMPO - I 5 217.6 2033.9 0.336 91.6 107.0 0.404 ZIRM 06380-6132 1.6544 2.004 93.9 357.3 2008.7730 104.7 0.462 7124 HU 718 139.77 1879.38 0.783 34.3 45.0 0.273 RICA 09005+3225 2.5757 0.552 102.1 79.3 2010.062 43.6 0.266 - JSP 418 283.1 1972.4 0.902 172.5 139.4 0.480 ZIRM 10423-3612 1.2716 0.669 66.1 144.0 1993.0902 139.8 0.490 8035 BU 1077AB 44.45 2002.17 0.439 9.3 21.0 0.582 SCARDIA 11037+6145 8.0994 0.590 159.9 232.8 2010.384 14.4 0.619 et al. (*) 9982 STF2026 441.8 1907.05 0.810 14.3 17.9 3.418 SCARDIA 16160+0721 0.8148 2.380 133.0 194.7 2009.593 17.8 3.435 et al. (*) - MLR 198 54.4 1992.92 0.657 169.7 68.3 0.247 SCARDIA 16420+7353 6.6176 0.195 147.7 299.4 2009.637 65.8 0.253 et al. (*) 10345 STF2130 812.0 1946.19 0.514 282.9 8.0 2.403 SCARDIA 17053+5428 0.4433 4.476 142.2 193.3 2010.538 7.0 2.420 et al. (*) 10850 STT 338AB 1276.6 1799.91 0.582 28.2 165.4 0.830 SCARDIA 17520+1520 0.2820 1.144 124.2 111.1 2010.669 165.2 0.830 et al. (*) 11484 STT 357 411.0 1968.32 0.317 93.8 76.7 0.376 SCARDIA 18360+1144 0.8759 0.511 124.8 321.9 2009.670 75.8 0.375 et al. (*) 13048 B 454 47.21 2006.84 0.764 153.8 327.5 0.112 DOCOBO & 19531-2528 7.6255 0.196 78.8 32.0 2009.263 329.8 0.145 CAMPO I 13048 B 454 100.62 1957.00 0.184 160.4 325.4 0.088 DOCOBO & 19531-2528 3.5778 0.332 86.6 275.7 2009.263 327.9 0.104 CAMPO II 13186 STT 392AB 270.3 2027.0 0.523 140.9 156.7 0.135 ZIRM 19579+4216 1.3319 0.260 112.7 34.1 1997.65 155.1 0.136 14379 HO 144 1644. 1944.84 0.791 168.9 347.6 0.361 LING 20524+2008 0.2190 1.031 91.5 116.9 2007.704 347.5 0.361 - HDS3004AB 91.91 2025.63 0.473 106.9 37.0 0.223 LING 21051+0757 3.9169 0.478 63.2 36.1 2008.7669 44.1 0.225 - HDS3083 12.08 2006.58 0.335 149.7 3.5 0.138 CVETKOVIC 21399+2737 29.7967 0.216 69.9 108.2 2008.4641 36.9 0.101 (*) SCARDIA, PRIEUR, PANSECCHI & ARGYLE ****************************************************************************************** The deadline for contributions to Information Circular No. 173 is: February 15th 2011 J. A. Docobo (joseangel.docobo@usc.es) J. F. Ling (josefinaf.ling@usc.es) Tel: +34 981592747 Fax: +34 981597054 Observatorio Astronomico "R. M. Aller" P. O. Box 197 Universidade de Santiago de Compostela SPAIN http://www.usc.es/astro ISSN: 1024-7769