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CD galaxy |
Also found in: Wikipedia | 0.03 sec. |
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CD galaxy [¦sē¦dē ′gal·ik·sē] (astronomy) A supergiant elliptical galaxy with an extended envelope, the largest known type of galaxy. 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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| Other researchers had previously established that a cD galaxy tends to emit visible light pointing toward another cD galaxy -- if the neighboring galaxy resides within 150 million light-years. |
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