Cres­cent Neb­ula (NGC 6888) in Cygnus

NGC 6888 (Cald­well 27) is one of the more intriguing objects in our galaxy as it is loc­ated around HD 192163, a 7.5‑mag Wolf-Rayet star. It has long been believed that this extremly lumin­ous sun is heat­ing a part of it out­er atmo­sphere which has a dia­met­er of roughly 20 lightyears. The Cres­cent Neb­ula spans an area of about 18x13 arc minutes in the con­stall­a­tion of Cygnus, roughly 4700 lightyears away.

[descrip­tion from O’Meara]

Details

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RCOS 14.5″ f/​8
ASA DDM85
Apo­gee U16M
Astro­don Gen2
HaOIIILRGB 360:570:340:280:280:240 min.
ROSA Remote Obser­vat­or­ies South­ern Alps
© Mar­tin Ruster­holz, Astrophotographer

Find­er Chart Cres­cent Neb­ula (NGC 6888) in Cygnus

Crescent Nebula Sky Chart - Astrophotography Martin Rusterholz

Image cre­ated by Skychart