galacticsights

astrophotography

Sh2-82, Little Cocoon Nebula

2020-08-09 / Click on image to enlarge

Sh2-82, informally known as the 'little Trifid Nebula' and the 'Cocoon Nebula', is a relatively small emission nebula (seen as red) surrounded by a blue reflection nebula. A long dust lane runs from bottom to top through the image, blocking the light of most of the stars behind it.


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Technical Details

LocationZollikerberg, Switzerland
CameraNikon DSLR D810A
TelescopeTS ONTC 12" f/4 Carbon Newton
OpticsTS 2,5" Wynne Coma Corrector
Focal Length1140mm
MountiOptron CEM120 Center-Balanced Equatorial Mount
AutoguidingPHD2 (Dithering)
FocuserMoonlite
Planetarium SoftwareStellarium
Image Session ControlAPT - Astro Photography Tool v3.81, ASCOM Platform 6
Lights61 x 120s (total 2h02'), ISO-1600, additional Biases, Flats, no Darks
Stacking SoftwarePixinsight 1.8, Drizzle 2x
Image ProcessingPixinsight 1.8