Boötes(redirected from Arctophylax)
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Boötes(boh-oh -teez) (Herdsman) A large constellation in the northern hemisphere near Ursa Major. The brightest stars are Arcturus and the 2nd-magnitude yellow-blue visual binary Epsilon (Ɛ) Boötis, one of several double stars. The area also contains one of the most distant radio galaxies, 3C–295. A giant planet 1.4 times as massive as Jupiter is thought to orbit the 4th-magnitude yellow subgiant Tau (τ) Boötis (spectral type: F6 IV; distance: 16 pc). Abbrev.: Boo; genitive form: Boötis; approx. position: RA 14.5h, dec +30°; area: 907 sq deg.
a meteor shower with a radiant in the constellation of Boötes. It is associated with Pons-Winnecke’s comet. It was first observed in May and June 1916. It was active in 1916, 1921, and 1927. After 1927 the shower lost its meteors.
(the ox herdsman), a constellation in the northern hemisphere. Its brightest star is Arcturus with a visual stellar magnitude of 0.1. The most favorable conditions for viewing BoÖtes are in April and May. It is visible everywhere in the USSR.