Friday, October 9, 2009

Galaxy IC-10

A view of the closest known starburst galaxy

According to the NASA Astronomy Picture of the Day Web site:

"Lurking behind dust and stars near the plane of our Milky Way Galaxy, IC 10 is a mere 2.3 million light-years distant. Its light dimmed by the intervening dust, the irregular dwarf galaxy still shows off vigorous star-forming regions that shine with a telltale reddish glow in this colorful skyscape. In fact, also a member of the Local Group of galaxies, IC 10 is the closest known starburst galaxy. Compared to other Local Group galaxies, IC 10 has a large population of newly formed stars that are massive and intrinsically very bright, including a luminous X-ray binary star system thought to contain a black hole. Located within the boundaries of the northern constellation Cassiopeia, IC 10 is about 5,000 light-years across."

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  • Visit NASA's Astronomy Picture of the Day Web site
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  • See what's in the sky tonight
  • Buy a telescope from the Discovery Channel store
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credit and copyright: Mike Siniscalchi

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