Abstract
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 1150-196372, with a median angular separation of 57906. 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).
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