Image of the Day: massive star 450 light years away
Tuesday, January 25, 2011 - 6:00am
This gorgeous infrared image of Zeta Ophiuchi was taken with NASA's Wide-field Infrared Survey Explorer (WISE). Although interstellar dust makes Zeta Ophiuchi appear red, this supergiant is actually blue — and moving fast. Astronomers believe it was once part of a binary system but when it separated, Zeta Ophiuchi shot away at about 54,000 miles per hour.
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