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Crescent Nebula in Emission-Line
NGC6888
Object
Type Supernova Remnant
Constellation Cygnus
Distance 5,000 ly
Magnitude
Angular Size 20 arc min
Size 25 ly
More Info  APODEssay by Robert Gendler ©
Image
Date 2008-09-15
Place Carlsbad, CA
Exposure Data Ha 180 mins @ -10C
Ha 12x15 (bin 1x1)
Notes
Equipment
Optics Takahashi MT200
Focal Length 1200mm @f/6
Mount Astro-Physics 900GTO
Camera SBIG ST-2000XM (KAI-2020M)
Focuser
Filters CFW10A, Astrodon 6nm Ha
Software Maxim DL, CCDStack, Photoshop

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