Telescope: TEC140 f/5.2
Mount: Paramount MyT
Exposure: 34h SII 22x1800s Ha 43x1200s OIII 28x1200s, bin x1
Date and place: 08.2020 Observatory E-EyE, Fregenal de la Sierra, Spain
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.