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Crescent Nebula in Emission-Line
NGC6888
Object
Type
Supernova Remnant
Constellation
Cygnus
Distance
5,000 ly
More Info
Image
Date
17 May 2008 (Spring)
Place
Carlsbad, CA
Exposure Data
Ha 180 mins @ -15C
Ha 12x15 (bin 1x1)
Notes
Equipment
Optics
Vixen VC200L Corrected Reflector
Focal Length
1280mm @f/6.4
Mount
Astro-Physics 900GTO
Camera
SBIG ST-2000XM
Focuser
Robo-Focus
Filters
CFW10A, Astrodon 6nm Ha
Software
CCD Commander, MaxIm DL 4, CCDStack, Photoshop cs3