Space / Astronomy: What's Hot Now: Arcturus Information

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Arcturus Information Oct 9th 2011, 10:17 Other Names: Haris-el-sema Alpha Bootis HR 5340 HD 124897 Data: Right Ascension: 14 15 39.7 Declination: +19 10 57 Apparent Magnitude: -0.04 Absolute Magnitude: 0.2 Distance: 34 LY Spectral Type: 5IIIFe-0.5 Constellation: Arcturus Information: Arcturus is the brightest star in the constellation Bootes, which is one of the oldest constellations in the night sky. It is the 4th-brightest star in the entire sky. Arcturus means bear guard, as it overlooks the constellation Ursa Major. It is an orange giant with a diameter about 10 times that of the sun and a luminosity about 100 times that of the sun. At about 34 light-years, Arcturus is one of the nearest giant stars. Arcturus is located in the constellation Bootes.

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