Rotanev vs Spica
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Rotanev
Rotanev, formally designated Beta Delphini, is the brightest star in the constellation Delphinus and a binary system of evolved F-type stars. The components orbit one another on a period of about 26.7 years and are too close to separate with the unaided eye, so the system appears as a single star of roughly fourth magnitude. Its unusual name first appeared in the Palermo Star Catalogue of 1814 and...
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Spica
Spica, designated Alpha Virginis, is the brightest star in the constellation of Virgo and a prominent binary star system. Located approximately 250 light-years from Earth, the system consists of two massive B-type stars orbiting so closely that their mutual gravity distorts them into ellipsoidal shapes, causing variations in observed brightness. The primary star is a rotating ellipsoidal variable...
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