Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aj....142...73c&link_type=abstract
The Astronomical Journal, Volume 142, Issue 3, article id. 73 (2011).
Astronomy and Astrophysics
Astronomy
Binaries: Visual, Stars: Fundamental Parameters, Stars: Individual: Hj 621 Bu 787 Ab Stf 2799 Ab Wor 11 Hj 995
Scientific paper
Using the 2 m telescope of the Bulgarian National Astronomical Observatory at Rozhen, observations of 145 double or multiple stars were carried out during three nights on 2010 September 7-9. This is the fifth series of measurements of CCD frames of double and multiple stars obtained at Rozhen. In this paper, we present the results for the position angle and angular separation for 202 pairs and residuals for 45 pairs with published orbital elements or linear solutions. These observations have angular separations in the range 1farcs150-196farcs372, with a median angular separation of 57farcs906. Three linear solutions are presented for the first time and three orbits are recalculated (one pair has both a linear fit and an orbital solution).
Based on observations with the 2 m RCC telescope of the Rozhen National Astronomical Observatory operated by the Institute of Astronomy, Bulgarian Academy of Sciences.
Boeva Svetlana
Cvetkovic Zorica
Damljanović Goran
Pavlovic R.
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