Telescope: Stellarvue 80mm Triplet	Designation: The Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792. 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 to 400,000 years ago. The result of the collision is a shell and two shock waves, one moving outward and one moving inward. The inward moving shock wave heats the stellar wind to X-ray-emitting temperatures. It is a rather faint object located about 2 degrees SW of Sadr. For most telescopes it requires a UHC or OIII filter to see. Under favorable circumstances a telescope as small as 8 cm (with filter) can see its nebulosity. Larger telescopes (20 cm or more) reveal the crescent ". Wiki
Mount: Ioptron CEM25 P	Constellation: Cygnus
Camera: ZWO ASI294 OSC with ZWO Duo Narrow Band filter	Imaged With ZWO ASIAIR
Guiding:ZWO 120 Mini Guider	Type: Emission Nebula
Exposure Data: Narrow Band ZWO Duo Narrow Band Filter, 50, 10 minute sub exposures.	Position: R.A. 20h 52m 24s , Dec +31° 15' 14"
Processed using PixInsight and PhotoShop image processing	Date: June 2021
Data Acquisiton, Reduction and Processing by Jim Janusz	Imaging Location: Roadrunner Observatory backyard Palm Desert