Alpha Aurigae

auriga.jpg (92447 bytes)

Capella, one of the brightest stars in the sky, lies 42 light years away in the direction of the constellation Auriga. Its bright yellow appearance indicates that it has a surface temperature similar to that of the Sun. There the similarity ends. It is actually a binary star. Each of the two stars is a giant, with ten times the radius of the Sun. One of the stars has 10,000 times the x-ray luminosity of the solar corona.

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100mila.jpg (21505 bytes)          10mila.jpg (22517 bytes)         1mila.jpg (8731 bytes)          100mica.jpg (23464 bytes)         10micas.jpg (171766 bytes)          1micas.jpg (113963 bytes)
100 MilliArcseconds       10 MilliArcseconds        1 MilliArcseconds         100 MicroArcseconds       10 MicroArcseconds         1 MicroArcseconds


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