M50 - open cluster in Monoceros

Posted by Michael Bakich
on Tuesday, January 06, 2009

by Anthony Ayiomamitis

Equipment:  AP 160 f/7.5 StarFire EDF
                  AP 1200GTO GEM
                  SBIG ST-2000XM
                  SBIG CFW10
                  SBIG LRGB + IR-block

Exposures:  Lum: 030 min (10 x 03 min)
                  Red: 030 min (05 x 06 min)
                  Green: 030 min (05 x 06 min)
                  Blue: 030 min (05 x 06 min)
                  Dark: 135 min (15 x 3+6 min)
                  Binning: 1x1 (Lum),  1x1 (RGB)

      Processing: Reduction, two-star manual registration/alignment, average-combine, colour balance for QE with adjustment for atmospheric extinction, DDP, background normalization, RGB combine, levels/curves, saturation, levels with luminance layering, slight unsharp masking, despeckle, 16- to 8-bit conversion.

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