NGC2403

Constellation: Camelopardalis        Distance: 8 million lightyears

NGC2403

Click for higher resolution (2000 x 1570)

Image spcefications:
  • Exposure: 3,5 hours, LRGB = 120:30:30:30 minutes
  • Camera: SBIG ST-8300M, Temp -25 ° C, Baader RGB filters
  • Instrument: TEC 140 with field flattener, focal distance 980 mm
  • Mount: Losmandy G11
  • Guiding: TS Off Axisguider, Starlight Xpress Lodestar autoguider and PHD
  • Location: Wateren, The Netherlands
  • Date: 24 mars 2012

Image acquisition with ImagesPlus 4.0 Camera Control with dither:
  • 12 Luminance of 10 min, binned 1x1
  • 6 Red + 6 Green + 6 Blue of 5 min, binned 2x2
  • 20 Flat fields per channel with Aurora Flatfield panel
  • At home, camera in fridge:
  • 20 Dark frames of 10 min + 20 Dark frames of 5 min
  • 20 Flat darks (per channel) + 20 Bias frames

Processing in ImagesPlus 3.82:
  • Automatic Image Set Processing per channel: calibrate, normalize, grade

Processing in PixInsight 1.7
  • StarAlignment, ChannelCombination
  • BackgroundNeutralization, ColorCalibration, HistogramTransformation
  • HDRMultiScaleTransformation, ACDNR, CurvesTransformation, SCNR
  • MorphologicalTransformation, LocalHitogramEqualisation
  • LRGBCombination

Processing in Photoshop CS3:
  • Levels