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  • Writer's pictureKevin Hearn

The Cresecnt Nebula NGC6888

Total of 7 hours 45 Minutes Imaging using Narrowband Filters.

(Ha 14 x 900secs, Oiii 12x 900secs, Sii 7 x900sec).

Captured over several nights August/September 2018 using Ed80 Scope and Atik 460ex Camera.

The Cresent Nebula NGC6888 is in the constellation Cygnus, about 5000 light-years away from Earth. To put this into perspective tarvelling at the speed of light, 128,000 miles per second, it would take 5000 years to get there. It is formed by the fast stellar wind from the Wolf-Rayet star WR 136 (HD 192163) colliding with and energizing the slower moving wind ejected by the star when it became a red giant around 250,000[3] to 400,000[citation needed] years ago. The result of the collision is a shell and two shock waves, one moving outward and one moving inward.

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