Bellatrix
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Bellatrix, also known by its Bayer designation Gamma Orionis, is the third brightest star in the constellation Orion, the twenty-seventh brightest star in the night sky, and one of the brightest second-magnitude stars. Historically this star was used as a luminosity standard to 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…mehr

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Bellatrix, also known by its Bayer designation Gamma Orionis, is the third brightest star in the constellation Orion, the twenty-seventh brightest star in the night sky, and one of the brightest second-magnitude stars. Historically this star was used as a luminosity standard to 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 apparent magnitude from 1.59 to 1.64. It has an absolute magnitude of -2.72.