IC443 Jellyfish Nebula

Constellation: Gemini        Distance: 5000 lightyear

IC443

Click for higher resolution (3296 x 2424)

Image spcefications:
  • Exposure: 200 minutes, H-alpha
  • Camera: SBIG ST-8300M, Temp -25 ° C Astrodon 5nm H-alpha filter
  • Instrument: TEC 140 with field flattener, focal distance 980 mm
  • Mount: Losmandy G11
  • Guiding: TS Off Axisguider, Starlight Xpress Lodestar autoguider and PHD
  • Location: Overveen, Netherlands
  • Ambient temperature: 10° C
  • Date: 21 and 22 mars 2012

Image acquisition with ImagesPlus 4.0 Camera Control with dither:
  • 10 subs of 20 min, binned 1x1
  • 20 Flat fields with Aurora Flatfield panel
  • 15 Dark frames of 10 min
  • 20 Flat darks + 20 Bias frames

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

Processing in PixInsight 1.7
  • StarAlignment
  • HistogramTransformation
  • HDRMultiScaleTransformation, ACDNR