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emission nebula |
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emission nebula [i′mish·ən ′neb·yə·lə] (astronomy) A type of bright diffuse nebula whose luminosity results from the excitation and ionization of its gas atoms by ultraviolet radiation from a nearby O- or B-type star. 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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emission characteristics emission control emission electron microscope emission flame photometry emission inventory emission lines emission nebula Emission nebulas emission rights emission security emission spectrometer emission spectrum emission standard emission tomography emission-line corona |
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