... Астронет | ... M57: The Ring Nebula . ... Now known as M57 or NGC 6720, the gas cloud became popularly known as the Ring Nebula . It is now known to be a planetary nebula, a gas cloud emitted at the end of a Sun-like star's existence. ... NASA Official: Jay Norris. ... Публикации с ключевыми словами: M57 - Ring Nebula - planetary nebula - кольцевая туманность - Планетарная туманность . Публикации со словами: M57 - Ring Nebula - planetary nebula - кольцевая туманность - Планетарная туманность . ...
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2009 November 15 . M57: The Ring Nebula . ... Hubble Heritage Team ( STScI / AURA ), NASA . ... Now known as M57 or NGC 6720, the gas cloud became popularly known as the Ring Nebula . It is now known to be a planetary nebula , a gas cloud emitted at the end of a Sun-like star's existence. ... About APOD | ...
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