Gamma Boötis

From Wikipedia, the free encyclopedia

γ Boötis
Observation data
Epoch J2000.0
Constellation
(pronunciation)
Boötes
Right ascension 14h 32m 04.7s
Declination +38° 18' 30"
Apparent magnitude (V) +3.04
Distance 85.2 ± 1.6 ly
(26.1 ± 0.5 pc)
Spectral type A7III
Other designations
Seginus, Haris, Ceginus, Segin, 27 Boötis, HR 5435, HD 127762, BD+38°2565, FK5 535, HIP 71075, SAO 64203, GC 19607, ADS 9300, CCDM 14321+3818

Gamma Boötis (γ Boo / γ Boötis) is a star in the constellation Boötes. It also has traditional names Seginus, Segin, Ceginus or Haris.

Gamma Boötis is approximately 85 light years away from Earth. It belongs to the spectral class A7III. It is a Delta Scuti type variable star and its brightness varies from magnitude +3.02 to +3.07 with a period of 6.97 hours.

The name Seginus resulted from Latinization of an Arabic form of the Greek name of the constellation of Boötes (Theguius). The name Haris comes from the Arabic name of the constellation of Boötes, Al Haris Al Sama, which means "the guard".