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galactic corona |
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galactic corona [gə¦lak·tik kə′rōn·ə] (astronomy) A low-density gaseous region extending away from the dense gas of the disk of the Milky Way Galaxy into the halo for distances estimated to be at least 3000 parsecs. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The absorption dip indicates that the clouds barrel through the halo, known as the galactic corona, at 224 kilometers per second. |
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