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Great Cluster in Hercules
M13
Object
Type Globular Cluster
Constellation Hercules
Distance 25,100 ly
More Info
Image
Date 6-Jul-2013 (Summer)
Place Palomar Mountain, CA
Exposure Data LRGB 40:15:15:15 mins @ -20C
L 4x10 (1x1) , R 3x5, G 3x5, B 3x5 (bin 2x2)
Notes
Equipment
Optics DSI RC10C Corrected RC Astrograph
Focal Length 1867mm @f/7.3
Mount Astro-Physics 900GTO
Camera QSI 683wsg-8
Focuser Built-in Secondary Focuser
Filters Astrodon Gen 2 LRGB
Software MaxIm DL, CCDStack, Photoshop

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