Variable Binary Star
by Mark Garlick/science Photo Library
Title
Variable Binary Star
Artist
Mark Garlick/science Photo Library
Medium
Photograph - Photograph
Description
Variable binary stars. Illustration depicting an RS Canum Venaticorum (RS CVn) binary star system. This is an extremely unusual class of star, where variation in brightness is due both to mutual eclipsing by the binary stars, and to intrinsic variability. Typically both members are G-type stars with extreme solar-like activity such as 'star-spots' (black) and flares. The intrinsic variability is due to large star spot groups rotating into view. The prototype binary system for this class is in the constellation Canes Venatici.
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September 24th, 2018
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