Stock Photo: Ngc 6888 €Œcrescent Nebula†In Cygnus
ID 70016913 © Tragoolchitr | Megapixl.com
The Crescent Nebula (NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5,000 light-years away. It was discovered by William Herschel, a British astronomer in 1792. The Crescent Nebula gets its power from a Wolf-Rayed star at the centre WR 136(HD 192163), an evolved massive star that sprays its outer layers into space at 2,000-3,000 km/s. This fast-moving hot gas collides with cooler and slower moving gas ejected by the star when it became a red giant around 250,000 to 400,000 years ago and the collision excites the gas that expand to about 25 light-years across to emit light. The star at the centre of the Crescent Nebula sheds mass at a tremendous rate, close to a full solar mass in just 10,000 years. 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. 9-12 April 2016, LRHa-RHaGB image total 280 minutes SBIG STT-8300 CCD camera, Takahashi CCA-250 Astrograph, 1,250 mm f/5, Astro-Physics 1200GTO. From Pakchong, Nakornratchasima, Thailand
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abstract clouds creation crescent cygnus dust emission explosion fantasy fiction field hydrogen image infinity interstellar lights milky mystical nebulae ngc open outer plasma real reflection science sky space spiral star starfield starlight starry stars supernova system telescope universe way
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