Ring nebula, planetary nebula nebula (nĕb`y
lə) [Lat.
..... 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]
lə) [Lat...... 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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