M31 - The Andromeda Galaxy
(RA 00h 42m, DEC +41d 20m)
- Instrument: AstroPhysics 130EDT Refractor (130mm-f/8) with integrated Field Flattener and Off Axis Guider
- Filters: Red - OG-590, Green & Blue - Custom designed with two types of Schott glass each
- Exposure: Red - 180 mins, Green - 180 mins, Blue - 180 mins
- Film: Kodak Tech Pan 2415
- Developer: D19, 10 minutes
- Location: Chews Ridge, California, El. 5000ft (121d 34' 03" W & 36d 18' 35" N) and Hidden Hill Observatory, California, El. 2500ft (121d 28' 59" W & 37d 24' 05" N)
- Date: July & August 1998
- Digital Processing Employed: Basic Levels and Curves to stretch contrast and balance color plus image gamma was raised to enhance viewing on average monitors.
- Comments: This photo was assembled based on tests run by photographing a Kodak Gray Scale card in tricolor.
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