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The spectroscopic and interferometric orbit of Gliese 150.2

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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).

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Authors and Affiliations

  1. Special Astrophysical Observatory, Russian Academy of Sciences, Nizhni Arkhyz, Karachai-Cherkessian Republic, 357147, Russia

    Yu. Yu. Balega & E. A. Pluzhnik

  2. Cerro Tololo Inter-American Observatory, Casilla 603, La Serena, Chile

    A. A. Tokovinin

  3. SternbergAstronomical Institute, Moscow University, Universitetskii pr. 13, Moscow, 119992, Russia

    A. A. Tokovinin

  4. Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn, 53121, Germany

    G. Weigelt

Authors
  1. Yu. Yu. Balega
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  2. A. A. Tokovinin
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  3. E. A. Pluzhnik
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  4. G. Weigelt
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Translated from Pis’ma v Astronomicheski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Zhurnal, Vol. 28, No. 11, 2002, pp. 859–863.

Original Russian Text Copyright © 2002 by Balega, Tokovinin, Pluzhnik, Weigelt.

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Balega, Y.Y., Tokovinin, A.A., Pluzhnik, E.A. et al. The spectroscopic and interferometric orbit of Gliese 150.2. Astron. Lett. 28, 773–777 (2002). https://doi.org/10.1134/1.1518715

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  • DOI: https://doi.org/10.1134/1.1518715

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