Ring Nebula

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Ring nebula, planetary nebula nebula [Lat.,=mist], in astronomy, observed manifestation of a collection of highly rarefied gas and dust in interstellar space. Prior to the 1960s this term was also applied to bodies later discovered to be galaxies, e.g.
..... Click the link for more information. in the northern constellation Lyra; cataloged as M57 or NGC 6720. It is perhaps the most famous and beautiful nebula of this type. Its name describes the appearance of the expanding shell of gas. The nebula is estimated to be more than 5,000 light-years distant.

Ring Nebula [′riŋ ′neb·yə·lə]

(astronomy)

A nebula in the summer constellation Lyra; it is an example of the planetary type of gaseous nebulae.

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No references found			5 million light years away - and the Ring Nebula, a dying white dwarf star surrounded by fluorescing gas. Please let our star group spy at night; ASTRONOMERS AIM TO OBSERVE ... by Daily Post (Liverpool, England) At the base of the telescope, people stand on the second step of a small ladder to reach the eyepiece while one of the volunteer guides tells one youngster about the object he's seeing, the Ring Nebula. At the center of the UNIVERSE by The Register-Guard (Eugene, OR) Popular shots include images of a whirlpool galaxy and ring nebula, a blue mass of gas surrounded by striking yellow and orange. Out of this world by Evening Chronicle (Newcastle, England)			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 rot ring scratch awl ring shake ring shift ring sight ring silicate ring spinner ring spot ring stone ring stress ring structure ring syncline ring system ring test ring theory ring time ring topology			Ring Joint Ring Katholischer Akademischer Burschenschaften Ring Katholischer Deutscher Burschenschaften ring knocker Ring Lardner Ring Lardner Ring laser Ring laser gyro Ring Laser Gyro Navigation Ring laser gyroscope ring lifter ring louver Ring machine ring mail Ring main Ring main Ring main Ring Main Unit ring mains ring mains Ring Management Ring Master ring method of preputial amputation ring method of preputial amputation Ring micrometer Ring micrometer Ring Missionarischer Jugendbewegungen Ring modulation Ring modulator ring modulators Ring Nebula Ring network Ring network Ring No Answer Ring No Reply ring of color Ring of death Ring of Destiny Ring of Destruction Ring of Djinni Summoning Ring of Faith Ring of Fire Ring of Fire Ring of Fire Ring of Flame Ring of Frost Ring of Heath Ring of HeroQuest Narrators Ring of Honor Ring of Illusion Ring of integer Ring of integer Ring of integer Ring of integer Ring of integer Ring of operators ring of ossicles Ring of Polymorph Control Ring of regeneration Ring of Teleport Control Ring of the Nibelung

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