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北極星的真面目
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麥芽糖
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天文望遠鏡, 揭開了北極星的真面目: 是由三顆星星組成:

Photo

This image released by the Harvard-Smithsonian Center for Astrophysics shows an artist's concept of Polaris, bottom, with its two faint stellar companions. The North Star is actually a triple star system, and while one companion, at top, can be seen easily through small telescopes, the other hugs Polaris so tightly that it has never been seen directly until now. By stretching the capabilities of NASA's Hubble Space Telescope to the limit, Smithsonian astronomer Nancy Evans and her colleagues have photographed the close companion of Polaris, seen in this rendering just above bright Polaris itself, for the first time. (AP Photo/Center for Astrophysics, Greg Bacon)

http://news.yahoo.com/photo/060109/480/wx10301091758;_ylt=A86.I0MSz8ND7VMBehppaP0E;_ylu=X3oDMTBjZmlzODllBHNlYwNzc2lncm91cA--




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