Abstract
Based on photographic and CCD observations with the Pulkovo 26-inch refractor, radial velocity measurements with the 1.5-m RTT-150 telescope (TUBITAK National Observatory, Turkey), and highly accurate observations published in the WDS catalog, we have obtained the orbits of ten wide visual double stars by the apparent motion parameter method. The orientation of the orbits in the Galactic coordinate system has been determined. For the outer pair of the multiple star HIP 12780 we have calculated a family of orbits with a minimum period P = 4634 yr. Two equivalent solutions with the same period have been obtained for the stars HIP 50 (P = 949 yr) and HIP 66195 (P = 3237 yr). We have unambiguously determined the orbits of six stars: HIP 12777 (P = 3327 yr), HIP 15058 (P = 420 yr), HIP 33287 (P = 1090 yr), HIP 48429 (P = 1066 yr), HIP 69751 (P = 957 yr), and HIP 73846 (P = 1348 yr). The orbit of HIP 55068 is orientated perpendicularly to the plane of the sky, P >1000 yr. The star HIP 48429 is suspected to have an invisible companion.
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Original Russian Text © O.V. Kiyaeva, L.G. Romanenko, R.Ya. Zhuchkov, 2017, published in Pis’ma v Astronomicheskii Zhurnal, 2017, Vol. 43, No. 5, pp. 354–369.
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Kiyaeva, O.V., Romanenko, L.G. & Zhuchkov, R.Y. New orbits of wide visual double stars. Astron. Lett. 43, 316–331 (2017). https://doi.org/10.1134/S1063773717040041
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DOI: https://doi.org/10.1134/S1063773717040041