Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aj....131.1000h&link_type=abstract
The Astronomical Journal, Volume 131, Issue 2, pp. 1000-1006.
Astronomy and Astrophysics
Astronomy
4
Astrometry, Stars: Binaries: Visual, Techniques: Interferometric
Scientific paper
Position angle and separation measures of 482 primarily southern binary stars are presented. These were obtained from speckle observations taken at the Carlos U. Cesco Observatory, El Leoncito, Argentina, using a multianode microchannel array detector during the period 1994 July to 1996 July. When comparing our measures to the ephemeris predictions in the case of objects with well-determined orbits, we find that our measures have a precision of approximately 13 mas per observation in separation and 0.75d/ρ in position angle, where ρ is the separation in arcseconds. We briefly discuss the photometric properties of the data and highlight four southern binaries of particular interest that emerge from the list presented.
Davidson James W. Jr.
Franz Otto G.
Gethyn Timothy J.
Girard Terrence M.
Horch Elliott P.
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