Any Nebula dark or light  
M17 Swan Nebula

M17 Swan Nebula(Doug Nutter)

Acquisition Date : June 6, 2011
Tucson, AZ
Camera : Canon 550D
Stock, No filter mods
Camera Settings : ISO800
18x240secs
Telescope : Home built 10" f5.6 Newtonian
Orion SSAG Guidescope
Mount : Orion Atlas EQ-G
Adapter / Prime / Afocal / Other : Prime focus
Baader MPCC Coma Corrector
Processing Package / Processing Applied : Dark Library to match Dark to Light Temps 1F.
Nebulosity for preprocessing, calibration, align/stack, linear, curve stretch. Finish with Canon DPP software for separate R/G/B curve/stretc

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