| Gamma Orionis |
Article Index for Gamma |
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Information AboutGamma Orionis |
| CATEGORIES ABOUT GAMMA ORIONIS | |
| bayer objects | |
| orionis, gamma | |
| blue-white giants | |
| orion constellation | |
| eruptive variables | |
Gamma Orionis (γ Ori / γ Orionis / Bellatrix) is the third brightest star in the Constellation Orion and The Twenty-second Brightest Star in the nighttime sky. The name ''Bellatrix'' is Latin for Amazon . It is also known as the Amazon Star, the ''warrioress'', or Gamma Orionis. It was once thought to belong to the physical association of stars that comprise much of the constellation of Orion. But this is no longer believed to be the case, as Gamma Orionis is much closer to us than the group. Historically this star was used as a luminosity standard that astronomers could compare with other stars to check for variability. But it was later discovered that Bellatrix itself is an eruptive variable, changing in luminosity by a few percent over time. It ranges in magnitude from 1.59 to 1.64. It is approximatly 500 light years from earth. Source: http://www.astro.wisc.edu/~dolan/constellations/hr/1790.html |
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