-Amenophis- Posted July 17, 2018 Report Share Posted July 17, 2018 (edited) Hello, 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 sharp telescopic portrait uses narrow band image data that isolates light from hydrogen and oxygen atoms in the wind-blown nebula. The oxygen atoms produce the blue-green hue that seems to enshroud the detailed folds and filaments. Visible within the nebula, 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 spectacular supernova explosion. Found in the nebula rich constellation Cygnus, NGC 6888 is about 5,000 light-years away. Telescope ASA10'' Paramount MyT Moravian G2-4000 Total exposure : 22 hrs Edited July 17, 2018 by -Amenophis- Link to comment Share on other sites More sharing options...
tommy_h Posted July 18, 2018 Report Share Posted July 18, 2018 Wow! Very nice details! Thomas Link to comment Share on other sites More sharing options...
-Amenophis- Posted July 19, 2018 Author Report Share Posted July 19, 2018 Thank you Link to comment Share on other sites More sharing options...
MarkS Posted July 24, 2018 Report Share Posted July 24, 2018 Wonderful detail! Mark Link to comment Share on other sites More sharing options...
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