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Arcturus    音标拼音: [,ɑrkt'ʊrəs] [,ɑrkt'ɚəs]
n. 大角星

大角星

Arcturus
n 1: the 4th brightest star and the brightest star in the
constellation Bootes; 36 light-years from Earth

Arcturus \Arc*tu"rus\, n. [L. Arcturus, Gr. ? bearward, equiv.
to ?; ? bear ? ward, guard. See {Arctic}.] (Anat.)
A fixed star of the first magnitude in the constellation
Bo["o]tes.
[1913 Webster]

Note: Arcturus has sometimes been incorrectly used as the
name of the constellation, or even of Ursa Major.
[1913 Webster]

Canst thou guide Arcturus with his sons [Rev.
Ver.: "the Bear with her train"]. --Job xxxviii.
32.
[1913 Webster]

Arcturus
bear-keeper, the name given by the ancients to the brightest
star in the constellation Bootes. In the Authorized Version (Job
9:9; 38:32) it is the rendering of the Hebrew word _'ash_, which
probably designates the constellation the Great Bear. This word
('ash) is supposed to be derived from an Arabic word meaning
night-watcher, because the Great Bear always revolves about the
pole, and to our nothern hemisphere never sets.


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  • Arcturus - Wikipedia
    Arcturus is a red giant star in the northern constellation of Boötes, and the brightest star in the constellation It has the Bayer designation α Boötis, which is Latinized to Alpha Boötis and abbreviated Alf Boo or α Boo
  • 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
  • Arcturus Therapeutics | A Commercial mRNA Medicines Company
    Arcturus Therapeutics is a commercial messenger RNA medicines company focused on the development of infectious disease vaccines and opportunities within liver and respiratory rare diseases
  • 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 At times, it is referred to as the fourth brightest star in the night sky, behind Alpha Centauri, when binary stars are included
  • Arcturus: The Mysteries of the Red Giant Star
    Arcturus is the brightest star in the northern sky, easily visible without a star chart This brilliant orange-red star, found in the constellation Boötes (boh-OH-teez) the Herdsman, is around 36 7 light-years from Earth Arcturus’ distinctive reddish hue reflects its temperature
  • 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
  • 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 (α Boo): Star Type, Size, Name, Constellation | Star . . .
    Arcturus, Alpha Boötis (α Boo), is an orange giant located 36 7 ly from Earth in the constellation Boötes It is 25 4 times larger and 170 times more luminous than the Sun
  • 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
  • Arcturus Star: Type, Age, Size, Diameter, Mass, Temperature . . .
    Uncover the secrets of Arcturus, the fourth brightest star in our night sky, in this comprehensive blog post Learn about its unique characteristics, history, mythology, and influence on human culture throughout time





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