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