M35

Constellation: Gemini        Distance: 2800 lightyears

M35

Click for full resolution (1676 x 1266)

Image spcefications:
  • Exposure: 45 minutes, RGB = 15:15:15 minutes
  • Camera: SBIG ST-8300M, Temp -35 ° 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: Etoile St. Cyrice, France
  • Sky Quality Meter: 21,31
  • Ambient temperature: -6° C
  • Date: 17 Januari 2012

Image acquisition with ImagesPlus 4.0 Camera Control with dither:
  • 3 Red + 3 Green + 3 Blue of 5 min, binned 2x2
  • 20 Flat fields per channel with Aurora Flatfield panel
  • At home, camera in fridge:
  • 20 Dark frames of 20 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
  • Align and combine

Processing in PixInsight 1.7
  • StarAlignment, ChannelCombination
  • ColorCalibration, BackgroundNeutralization, HistogramTransformation
  • ACDNR, CurvesTransformation