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Written by Written by cgj
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 Betelgeuse, or Alpha Orionis, is now estimated to be located around 430 +/- 100 light-years from Sol (based on a HIPPARCOS Plx= 7.63 +/- e_Plx= 1.64 mas). It lies in the northeastern part (5:55:10.3+7:24:25.4, ICRS 2000) of Constellation Orion.
Like many of the stars of Orion, it was probably formed a few million years ago from the molecular clouds observed in Orion but has evolved rapidly due to its unusually high mass. The star is a member of the "Orion OB1 Association," where massive young objects with over 10 times the Sol's mass can be found in abundance.
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Last Updated ( Thursday, 08 November 2007 )
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