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NGC 891, Spiral Galaxy in Andromeda

Submitted November 30, 2012 by Planewave Instruments

© Griffin, HapCamera: QSI 583wsg
Filters: Astrodon E Series Generation 2 LRGB
CCD Temperature: -10 C
Instrument: Planewave 12.5″ CDK
Focal Ratio: f8
Mount: AP-1200
Guiding: Auto via the QSI camera’s built in Off-Axis Guider mirror and an SBIG ST-402 Guider
Conditions: Cool and clear
Weather: 65 – 50 F, still
Exposure: 300 minutes total (12 x 10 min Luminance, 6 x 10 min each in RGB)
Capture: CCDAutopilot 4 w Maxim DL Camera Control, focused automatically w FocusMax
Processing: Frame calibrations, alignment and stacking with ImagesPlus v3.80. Finishing in Photoshop CS4.