ring galaxy

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ring galaxy [′riŋ ‚gal·ik·sē]

(astronomy)

A class of galaxy whose ringlike structure has clumps of ionized hydrogen clouds on its periphery, may have a nucleus of stars, and is usually accompanied by a small galaxy; probably formed when a small galaxy crashes through the disk of a spiral galaxy.

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No references found			[ILLUSTRATION OMITTED] The Sculptor constellation harbours a huge number of galaxies like the Cartwheel Ring Galaxy (ESO 350-G40) with a special appearance and a distance of around 500 000 light years. The Sculptor's feast in art by Streicher, Magda / Monthly Notes of the Astronomical Society of Southern Africa Lest anyone take the structure of a ring galaxy for granted. Starbirth memories by Cowen, Ron / Science News			ring cairn ring canal ring circuit ring closure ring complex ring compound ring counter ring course ring crusher ring current ring D ring data structure ring deoxyribonucleic acid ring depression Ring des Nibelungen, Der ring dike ring discharge ring E ring F ring fault ring finger ring fissure ring fracture ring G ring gage ring galaxy ring gasket ring gate ring gear ring head ring holes ring in ring isomerism ring isomorphism ring jewel ring job ring laser ring lifter ring louver ring main ring micrometer ring modulator Ring Nebula ring network Ring of Fire ring of operators Ring of the Nibelungs ring permutation ring plain ring power transmission line ring road			Ring final circuit Ring final circuit Ring final circuit ring finger ring finger ring finger Ring Finger Domain Ring Finger Domain Ring Finger Domain Ring Finger Domain Ring Finger Domain RING finger LIM domain-binding protein Ring Finger Protein Ring Finger Protein ring fingers ring fingers ring fingers ring fissure Ring flash ring flashes Ring for Jeeves Ring Form Ring formula ring fracture ring fracture Ring Freiheitlicher Jugend ring G Ring gage Ring gage Ring galaxies ring galaxy ring gasket ring gasket ring gate Ring gauge Ring gauge Ring gear Ring gear Ring Generation Unit ring girl Ring Granuloma Ring Ground ring head ring holes ring hollow Ring homomorphism Ring Imaging Cherenkov Counter ring in ring in ring in ears ring in mind ring in the new year Ring Indicator Ring Indicator Monitor Ring Interface Card Ring Interface Unit ring isomerism Ring isomorphism Ring It

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