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Ring Nebula. M 57, [1] NGC 6720, [1] GC 4447. The Ring Nebula (also catalogued as Messier 57, M57 and NGC 6720) is a planetary nebula in the northern constellation of Lyra. [4] [. C] Such a nebula is formed when a star, during the last stages of its evolution before becoming a white dwarf, expels a vast luminous envelope of ionized gas into the ...
Ring Nebula: M57: NGC 6720: 1779 2.3 +1.5 −0.7: 9 Lyra: Eskimo Nebula or Clown-faced Nebula NGC 2392: 1787 2.9 ... Eye of Sauron Nebula M 1-42: 10 Sagittarius
A longtime favorite of astronomers, the Ring Nebula has been studied for years due to its observability and the insight it can provide into the lifetime of stars. It is located in the Lyra ...
English: Ring Nebula (M57), taken with eVscope eQuinox from Saint-Antoine-l'Abbaye, France. 10' pose. Français : Nébuleuse de la Lyre (M57), prise avec eVscope eQuinox depuis Saint-Antoine-l'Abbaye, France.
English: HaRGB image of The Ring Nebula (M57) showing the faint outer shells. Data from the Liverpool Telescope (a 2 m RC telescope on La Palma) processed by Göran Nilsson. 67 exposures totalling 1.9 hours
Messier object. The Messier objects are a set of 110 astronomical objects catalogued by the French astronomer Charles Messier in his Catalogue des Nébuleuses et des Amas d'Étoiles ( Catalogue of Nebulae and Star Clusters ). Because Messier was interested only in finding comets, he created a list of those non-comet objects that frustrated his ...
It is approximately 2,500 light-years away. NGC 6326, a planetary nebula with glowing wisps of outpouring gas that are lit up by a binary [3] central star. A planetary nebula is a type of emission nebula consisting of an expanding, glowing shell of ionized gas ejected from red giant stars late in their lives. [4]
Ring Nebula (NGC 6822) The Ring Nebula in Barnard's Galaxy has the official designation of Hubble 1925 III as it was the third (Roman numeral 3) object recorded in Hubble's 1925 paper, N.G.C. 6822, A Remote Stellar System. It includes areas of bright H II emission. In Paul W. Hodge's 1977 paper it was designated Hodge 4.