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Boötes is a constellation bordered by Virgo to the south, Coma Berenices and Canes Venatici to the west, Ursa Major to the northwest, Draco to the northeast, and Hercules, Corona Borealis and Serpens Caput to the east. The three-letter abbreviation for the constellation, as adopted by the International Astronomical Union in 1922, is "Boo". [18]
This is the list of notable stars in the constellation Boötes, sorted by decreasing brightness. ... component of the π Boo system 128750: 71571: 14 h 38 m 14.01 s
Epsilon Boötis (ε Boötis, abbreviated Epsilon Boo, ε Boo), officially named Izar (/ ˈ aɪ z ɑːr / EYE-zar), [16] is a binary star in the northern constellation of Boötes.The star system can be viewed with the unaided eye at night, but resolving the pair with a small telescope is challenging; an aperture of 76 mm (3.0 in) or greater is required.
Iota Boötis (ι Boo, ι Boötis) is a member of a binary star system in the constellation Boötes, approximately 96 light-years from Earth. It has the traditional name Asellus Secundus / ə ˈ s ɛ l ə s s ɪ ˈ k ʌ n d ə s / (Latin for "second donkey colt") and the Flamsteed designation 21 Boötis. The companion is HD 234121, a K0 main ...
Tau Boötis, Latinised from τ Boötis, is an F-type main-sequence star approximately 51 light-years away [1] in the constellation of Boötes. It is a binary star system, with the secondary star being a red dwarf. In 1999, an extrasolar planet was detected orbiting the primary star.
Xi Boötis, Latinised from ξ Boötis, is a binary star [10] system located at a distance of 22 light-years away from Earth. It is the nearest visible star in the constellation Boötes . The brighter, primary component of the pair has a visual magnitude of 4.70, making it visible to the naked eye.
η Boötis (Latinised to Eta Boötis) is the binary pair's Bayer designation; η Boötis A and B those of its two components. The designations of the two constituents of the double pair as WDS J13547+1824A and B and those of A's components - Aa and Ab - derive from the convention used by the Washington Multiplicity Catalog (WMC) for multiple star systems, and adopted by the International ...
Arcturus is the brightest star in the northern constellation of Boötes.With an apparent visual magnitude of −0.05, [2] it is the fourth-brightest star in the night sky, and the brightest in the northern celestial hemisphere.