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Open Cluster in Cassiopeia
NGC7789
Object
Type Open Cluster
Constellation Cassiopeia
Distance 25,100 ly
More Info
Image
Date 10 Sep 2007 (Summer)
Place Carlsbad, CA
Exposure Data LRGB 30:15:15:15 secs @ -15C
L 6x5, R 3x5, G 3x5, B 3x5 (bin 1x1)
Notes
Equipment
Optics Takahashi FSQ-106N Refractor
Focal Length 530mm @f/5
Mount Astro-Physics 900GTO
Camera SBIG ST-2000XM
Focuser Robo-Focus
Filters CFW10A, Astrodon LRGB
Software MaxIm DL, CCDStack, Photoshop

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