Rigel
Brightest star in the constellation Orion. It is a blue-white supergiant, with an estimated diameter 50 times that of the Sun. It is 910 light years from Earth, and is intrinsically the brightest of the first-magnitude stars, its true luminosity being about 40,000 times that of the Sun. It is the seventh-brightest star in the night sky.
| Its name is derived from the Arabic for ‘foot’. |
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