CCD MEASUREMENTS OF DOUBLE AND MULTIPLE STARS AT NAO ROZHEN : ORBITS AND LINEAR FITS OF FIVE PAIRS
- Astronomical Observatory, Volgina 7, 11060 Belgrade 38 (Serbia)
- Institute of Astronomy and NAO Rozhen, Bulgarian Academy of Sciences, 72 Tsarigradsko Chausse Blvd., 1784 Sofia (Bulgaria)
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 1.''150-196.''372, with a median angular separation of 57.''906. 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).
- OSTI ID:
- 21582977
- Journal Information:
- Astronomical Journal (New York, N.Y. Online), Vol. 142, Issue 3; Other Information: DOI: 10.1088/0004-6256/142/3/73; ISSN 1538-3881
- Country of Publication:
- United States
- Language:
- English
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