Bellatrix /bɛˈleɪtrɪks/,[14] with Bayer designation γ Orionis (Latinized to Gamma Orionis), is the third-brightest star in the constellation of Orion, positioned 5° west of the red supergiant Betelgeuse (Alpha Orionis). With a slightly variable magnitude of around 1.6, it is about the 25th-brightest star in the night sky. Located 250 ± 10 light-years away from Earth, it is a blue giant star around 7.7 times as massive as the sun, with 5.75 times its diameter.
| Right ascension | 05h 25m 07.86325s[1] |
|---|---|
| Declination | +06° 20′ 58.9318″[1] |
| Apparent magnitude (V) | 1.64[2] (1.59 - 1.64[3]) |
| Distance | 250 ± 10 ly |