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Astrometric Observations of Wide Southern Double Stars – II

Published online by Cambridge University Press:  05 March 2013

Christina Bauer ,
Graeme L. White ,
David L. Blank ,
Alex Hons  and
Paul A. Jones
Christina Bauer
Affiliation:
Centre for Astronomy, James Cook University, Townsville QLD 4811, Australia
Graeme L. White
Affiliation:
Centre for Astronomy, James Cook University, Townsville QLD 4811, Australia
David L. Blank*
Affiliation:
Centre for Astronomy, James Cook University, Townsville QLD 4811, Australia
Alex Hons
Affiliation:
Centre for Astronomy, James Cook University, Townsville QLD 4811, Australia
Paul A. Jones
Affiliation:
School of Physics, University of New South Wales, Sydney NSW 2052, Australia
*
CCorresponding author. Email: [email protected]
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Abstract

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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
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 24 , Issue 3 , 2007 , pp. 118 - 137
Copyright
Copyright © Astronomical Society of Australia 2007

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