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Great Cluster in Hercules
M13
Object
Type Globular Cluster
Constellation Hercules
Distance 25,100 ly
More Info
Image
Date 27 May 2011 (Spring)
Place Carlsbad, CA
Exposure Data LRGB 30:15:15:15 mins @ -20C
L 6x5 (1x1) , R 3x3, G 3x3, B 3x3 (bin 2x2)
Notes
Equipment
Optics Celestron C11 Carbon Fiber SCT w/XLT
Focal Length 1700mm @f/6
Mount Astro-Physics 900GTO
Camera SBIG ST-10XME
Focuser Robo-Focus
Filters CFW10A, Astrodon LRGB
Software Maxim DL, CCDStack, Photoshop

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