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compact H II region |
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compact H II region [′käm‚pakt ′āch ′tü ‚rē·jən] (astronomy) A region of dense ionized hydrogen in interstellar space, not greater than 1 parsec (1.9 × 1013miles or 3.1 × 1013kilometers) in diameter. 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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