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NGC 891 - Edge-on Spiral Galaxy in Andromeda
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Copyright 2005 Hap Griffin
NGC 891 is a fine example of a typical spiral galaxy as seen edge-on. The equatorial dust lane and the central bulge are very obvious in this photograph.
NGC 891 lies at a distance of 8.9 million light years.
Date/Location:
October 29, 2005 Griffin/Hunter
Observatory Bethune, SC
Instrument: Canon 350D (modified IR filtering) Digital SLR through
10" Meade RCX400
Focal Ratio: f8
Guiding: Auto via SBIG ST237 through Orion ED80 refractor
Conditions: Visually clear
Weather: 45 F
Exposure: 65 minutes total (13 x 5 minutes @ ISO 800)
Filters: Baader UV/IR block
Processing: Focused and captured with DSLRFocus.
RAW to TIFF conversion, auto-dark and flat frame calibration, Digital Development,
Richardson-Lucy deconvolution, resizing and JPEG conversion in ImagesPlus. Color correction in Photoshop
6. Noise reduction in Neat Image.