NGC 6888: The Crescent Nebula

Originally from 08 / 13 / 08
Credit & Copyright: Tony Hallas

Explanation: NGC 6888, also known as the Crescent Nebula, is a cosmic bubble about 25 light-years across, blown by winds from its central, bright, massive star. This beautiful telescopic view combines a composite color image with narrow band data that isolates light from hydrogen The oxygen atoms produce the blue-green hue that seems to enshroud the detailed folds and filaments. NGC 6888′s central star is classified as a Wolf-Rayet star (WR 136). The star is shedding its outer envelope in a strong stellar wind, ejecting the equivalent of the Sun’s mass every 10,000 years. The nebula’s complex structures are likely the result of this strong wind interacting with material ejected in an earlier phase. Burning fuel at a prodigious rate and near the end of its stellar life this star should ultimately go out with a bang in a constellation Cygnus, NGC 6888 is about 5,000 light-years away.

NGC 6888: The Crescent Nebula

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