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Pinwheel Galaxy
M101
Object
Type Spiral Galaxy
Constellation Ursa Major
Distance 27,000,000 ly
Magnitude 7.9
Angular Size 22 arc min
Size 170,000 ly
More Info  SEDSAPODEssay by Robert Gendler ©
Image
Date 12/29/2008
Place Eastern Riverside County Desert, CA
Exposure Data LHaRGB 120:60:60:60:60 mins @ -20C
Lum 12x10, Ha 6x10 (bin 1x1), R 6x10, G 6x10, B 6x10 (bin 2x2)
Notes
Equipment
Optics Takahashi MT200
Focal Length 960mm @f/4.8
Mount Astro-Physics 900GTO
Camera SBIG ST-2000XM (KAI-2020M)
Focuser Starlight Feather Touch Micro Focuser
Filters CFW10A, Astrodon LRGB
Software CCD Commander, Maxim DL, CCDStack, Photoshop

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