Capella (Star)

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Capella is the brightest star in the constellation Auriga, the sixth brightest star in the night sky and the third brightest star in the northern celestial hemisphere, after Arcturus and Vega. Although it appears to be a single star to the naked eye, it is actually a star system of four stars in two binary pairs. The first pair consists of two bright, large type-G giant stars, both with a radius around 10 times the Sun's, in close orbit around each other. These two stars are thought to be cooling and expanding on their way to becoming red giants. The second pair, around 10,000 astronomical units from the first, consists of two faint, small and relatively cool red dwarfs. The Capella system is relatively close, at only 42.2 light-years (12.9 pc) from Earth.

Weitere Informationen

  • Allgemeine Informationen
    • GTIN 09786130263690
    • Editor Frederic P. Miller, Agnes F. Vandome, John McBrewster
    • Sprache Englisch
    • Genre Physik & Astronomie
    • Größe H220mm x B150mm x T10mm
    • Jahr 2009
    • EAN 9786130263690
    • Format Fachbuch
    • ISBN 978-613-0-26369-0
    • Titel Capella (Star)
    • Untertitel Constellation, Auriga (constellation), List of brightest stars, Celestial sphere, Arcturus, Star system, Vega, Binary star, Stellar classification
    • Gewicht 268g
    • Herausgeber Alphascript Publishing
    • Anzahl Seiten 168

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