The identification of H 2311+77 with HD 220140, a probable RS CVn star.
DOI: 10.1093/mnras/215.1.11P
Bibcode: 1985MNRAS.215P..11P
White, N. E.; Giommi, P.; Pravdo, S. H.
United States, Germany
Abstract
H2311+77, one of the bright soft X-ray sources in the sky originally detected with HEAO 1, has been identified in an EXOSAT imaging observation with a 7.7-mag late-type star, HD 220140. The X-ray luminosity and the optical characteristics of this star indicate that it is probably an RS CVn binary system.
1985
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Monthly Notices of the Royal Astronomical Society
Exosat
11