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Astrometric Observations of Wide Southern Double Stars – II

Christina Bauer A, Graeme L. White A, David L. Blank A C, Alex Hons A and Paul A. Jones B

A Centre for Astronomy, James Cook University, Townsville QLD 4811, Australia
B School of Physics, University of New South Wales, Sydney NSW 2052, Australia
C Corresponding author. Email: david.blank@jcu.edu.au


Abstract

Astrometric CCD observations have been made of wide (3 to 60 arcsec) southern double stars selected from the Washington Double Star catalogue (WDS). Southern double stars have not been well studied in the past; typically they had not been measured since about 1930, and 50% of them have been observed only once before our observations. Of the pairs measured 80% show no evidence of motion since the last observation. This is Paper II in which we present the observations of 290 WDS stars in the approximate RA range 17h 13m to 07h 30m and in the declination range -70° to -60°. We suggest 412 companions for these 290 stars and list 29 (10%) pairs that have shown significant motion.

Keywords: Stars: double, multiple, binary

Publications of the Astronomical Society of Australia 24(3) 118–137    doi:10.1071/AS07023
Submitted: 20 July 2007    Accepted: 5 September 2007    Published: 25 October 2007





   
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