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  • Arcturus - Wikipedia
    Located relatively close at 36 7 light-years from the Sun, Arcturus is a red giant of spectral type K1 5III—an aging star around 7 1 billion years old that has used up its core hydrogen and evolved off the main sequence
  • Arcturus: Facts About the Bright Red Giant Star | Space
    Arcturus is a red giant star in the Northern Hemisphere of Earth 's sky and the brightest star in the constellation Boötes (the herdsman) Arcturus is also among the brightest stars that can be
  • Meet Arcturus: Guardian of the Bear - Sky Telescope
    Arcturus is a fine example of a red giant star — impressively large, accordingly rarefied, brilliantly bright, and surprisingly cool Arcturus possesses only slightly more mass than the Sun, but expands that material into a radius about 25 times larger
  • Arcturus Star | Pictures, Location, and the Origin of its Name
    Arcturus, also known as Alpha Boötis, is one of the brightest stars in the northern hemisphere In fact, it is the third brightest individual star in the entire night sky behind Sirius and Canopus
  • Arcturus - Alpha Boötis – Constellation Guide
    Arcturus, Alpha Boötis, is the brightest star in Boötes constellation and the fourth brightest star in the sky With an apparent magnitude of -0 04, Arcturus is the brightest star in the northern celestial hemisphere
  • 7 Facts About Arcturus, the Red Giant Star - HowStuffWorks
    If you're curious to learn about Arcturus, one of the brightest stars in the night sky, read on for interesting facts on how it can be spotted with the naked eye, fascinating discoveries, and more interesting facts about Arcturus star
  • Arcturus | Brightest Star, Red Giant, Constellation Bootes . . .
    Arcturus, the fourth brightest star in the night sky, and the brightest star in the northern constellation Boötes, with an apparent visual magnitude of −0 05 It is an orange-coloured giant star 36 7 light-years from Earth


















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