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Cygnus OB2-8A
Cygnus OB2 #8A is a double-lined spectroscopic binary located near the centre of the Cygnus OB2 association located 5,500 light years away. Discovery Until 1951 Cyg OB2 #8 had been known only as an anonymous catalogue entry in the Bonner Durchmusterung. Then it was identified as one of several highly luminous hot stars close together in Cygnus. Despite being commonly referred to as Schulte #8A, the number 8 was first published in an earlier paper. Schulte identified the grouping as a massive stellar association and split star #8 into four components, including #8A. System The Cygnus OB2 #8A system contains two massive luminous O class stars in a 21.9 day orbit. The primary is a supergiant and the secondary is a giant star. The two stars are not thought to be exchanging mass and their luminosity classes match the main sequence turnoff in the Cyg OB2 association at around O6. The nearby stars Cyg OB2 #8B, #8C, and #8D, originally thought to be a single star, are a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bica2 HST
Bica may refer to: * Bica (coffee), a type of coffee beverage originally from Portugal * Bica, Cluj, one of 6 villages comprising the Mănăstireni commune in Cluj County, Romania * Bica-Q, a trade name of the antiandrogen bicalutamide * Fazenda da Bica, a region of Rio de Janeiro, Brazil * Quinta da Bica, a ''quinta'' (estate) near Seia, Beira region, Portugal * Bicalutamide, a drug used to treat prostate cancer and in feminizing hormone therapy People * Bica (footballer) (Marcus Di Giuseppe, born 1972), Brazilian footballer * Camillo Mac Bica (born 1947), American philosopher, poet, activist, and author * Carlos Bica (active from 1998), Portuguese jazz bassist * José Bica (born 2003), Portuguese footballer * Sergio Bica (born 1983), Uruguayan footballer * Adrian Bică Bădan (born 1988), Romanian footballer BICA * Bahamas Institute of Chartered Accountants, a professional association * Banque Internationale pour la Centrafrique, a bank * BICA Honduras, a non-profit environmental ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
