Sharpless-308: The Dolphin Nebula

Blown by instant winds from a hot, wide smartly-known person, this cosmic bubble is powerful higher than the dolphin it seems to be to be to be. Cataloged as Sharpless 2-308 it lies some 5,200 gentle-years away toward the constellation of the Substantial Dog (Canis Main) and covers somewhat more of the sky than a Rotund Moon. That corresponds to a diameter of 60 gentle-years at its estimated distance. The wide smartly-known person that created the bubble, a Wolf-Rayet smartly-known person, is the though-provoking one attain the center of the nebula. Wolf-Rayet stars contain over 20 cases the mass of the Solar and are regarded as in a instant, pre-supernova fragment of big smartly-known person evolution. Like a flash winds from this Wolf-Rayet smartly-known person construct the bubble-shaped nebula as they sweep up slower fascinating topic material from an earlier fragment of evolution. The windblown nebula has an age of about 70,000 years. Somewhat faint emission captured in the featured gargantuan image is dominated by the glow of ionized oxygen atoms mapped to a blue hue.