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extragalactic nebula
/ˌɛkstɹəɡɐlˈaktɪk nˈɛbjʊlə/
Extragalactic nebula
01
(astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust
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(astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust
