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m (Alpha Canis Minoris moved to Procyon: Meh, its what the vidoc calls it. Both are technically correct, but ah well.) |
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[[Image:Position Alpha Cmi.png|thumb|Alpha Canis Minoris, or Procyon.]] | [[Image:Position Alpha Cmi.png|thumb|Alpha Canis Minoris, or Procyon.]] | ||
Procyon (pronounced /'proʊsɪən/) (α CMi / α Canis Minoris / Alpha Canis Minoris) is the brightest star in the constellation Canis Minor. To the naked eye, it appears to be a single star, the eighth brightest in the night sky with a visual apparent magnitude of 0.34. It is actually a binary star system, consisting of a white main sequence star of spectral type F5 IV-V, named Procyon A, and a faint white dwarf companion of spectral type DA, named Procyon B. The reason for its brightness is not its intrinsic luminosity but its closeness to the Sun; at a distance of 3.5 pc or 11.41 light years, Procyon is one of our near neighbours. Its closest neighbour is Luyten's star, 0.34 pc or 1.11 ly away. | '''Procyon''' (pronounced /'proʊsɪən/) (α CMi / α Canis Minoris / Alpha Canis Minoris) is the brightest star in the constellation Canis Minor. To the naked eye, it appears to be a single star, the eighth brightest in the night sky with a visual apparent magnitude of 0.34. It is actually a binary star system, consisting of a white main sequence star of spectral type F5 IV-V, named Procyon A, and a faint white dwarf companion of spectral type DA, named Procyon B. The reason for its brightness is not its intrinsic luminosity but its closeness to the Sun; at a distance of 3.5 pc or 11.41 light years, Procyon is one of our near neighbours. Its closest neighbour is Luyten's star, 0.34 pc or 1.11 ly away. | ||
Procyon is orbited by [[Arcadia]], a [[UNSC]] colony world, which was invaded by the Covenant in 2531<ref>''[http://nz.youtube.com/watch?v=U5mTz1lOhsQ Halo Wars]''</ref>. The eventual fate of the planet and its star system are unknown. | Procyon is orbited by [[Arcadia]], a [[UNSC]] colony world, which was invaded by the Covenant in 2531<ref>''[http://nz.youtube.com/watch?v=U5mTz1lOhsQ Halo Wars]''</ref>. The eventual fate of the planet and its star system are unknown. |
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