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On the correctness of orbital solutions obtained from a small set of points. Orbit of HIP 53731

Mitrofanova, Arina; Dyachenko, Vladimir; Beskakotov, Anatoly +4 more

HIP 53731 is a binary consisting of stars of the spectral types K0 and K9. The orbit of this object was constructed previously by Cvetković et al. and improved by Tokovinin. It should be noted that there is a 180° ambiguity in the position angles of some published measurements. Speckle interferometric observations were obtained in 2007-2020 (21 me…