Gemini: Columbus, Oh, Banks And Atms

Click for full-screen Alpha Geminorum – This double star is the second brightest star in Gemini and the twenty-third brightest star in the sky. The 1.58 magnitude, white, principal-sequence main and 2.97 magnitude, white, secondary elements are five.two arcseconds apart. It is produced up of a binary star and a dwarf star that orbit the pair once in 700 years. With an apparent visual magnitude of three.15, it is the…Read More