Andromeda Galaxy

Constellation: Andromeda        Distance: 2.5 million lightyears

andromeda

Click for full resolution (4389 x 3238)

Image spcefications:
  • Exposure: Two panel mosaic of 12 hours. Each panel LRGB = 180:60:60:60 minutes
  • Camera: SBIG ST-8300M, Temp -20 ° C, Baader LRGB filters
  • Instrument: Televue 85 with focal reducer/field flattener focal distance 474 mm
  • Mount: Losmandy G11
  • Guiding: SBIG Off Axisguider, Starlight Xpress Lodestar autoguider and PHD
  • Location and date: Puimichel, France, 24 and 28 august 2014
  • Location and date: Etoile St.Cyrice, France, 30 31 august and 1 september 2014

Image acquisition with ImagesPlus 5.75 Camera Control:
  • 24 Luminance of 15 min, binned 1x1
  • 12 Red + 12 Green + 12 Blue of 10 min, binned 1x1
  • 20 Flat fields with flatfield panel
  • 20 Dark frames of 15 min + 20 Dark frames of 10 min
  • 50 Bias frames

Processing in PixInsight 1.8
  • ImageCalibration, ImageIntegration, StarAlignment, ChannelCombination, BackgroundNeutralization, DynamicCrop
  • StarMask, RangeMask, Convolution, Pixelmath, ATrousWaveletTransform
  • Non lineair: HistogramTransformation, CurvesTransformation, SCNR, MorphologicalTransformation, ACDNR, LocalHistogramTransformation