The Dolphin Nebula: blown by fast winds from a hot, massive star, this cosmic bubble is much larger than the dolphin it appears to be. Cataloged as Sharpless 2-308 it lies some 5,200 light-years away toward the constellation of the Canis Major and covers slightly more of the sky than a Full Moon via /r/spaceporn https://ift.tt/2PFlGlD
via Tumblr https://ift.tt/2wUTxR0
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