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The spectroscopic and interferometric orbit of Gliese 150.2 |
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| Authors: | Yu Yu Balega A A Tokovinin E A Pluzhnik G Weigelt |
| Institution: | (1) Special Astrophysical Observatory, Russian Academy of Sciences, Nizhni Arkhyz, Karachai-Cherkessian Republic, 357147, Russia;(2) Cerro Tololo Inter-American Observatory, Casilla 603, La Serena, Chile;(3) SternbergAstronomical Institute, Moscow University, Universitetskii pr. 13, Moscow, 119992, Russia;(4) Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn, 53121, Germany |
| Abstract: | We determined the spectroscopic-interferometric orbit of the binary red dwarf Gliese 150.2 with a period of 13.84 yr and a semimajor axis of 0.257 arcsec. Based on the orbital elements and on accurate measurements of the magnitude difference at several wavelengths, we estimated the spectral types and masses of the components (K0 V and M0 V, 0.79 and 0.55M ⊙) and the dynamical parallax of the binary (40.4 mas). |
| Keywords: | stars— properties classification binary stars orbits |
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