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robo9981

NGC 7380 - Wizard Nebula

  • 5 sessions
  • 628 images
  • 31.4 hours

Details

Final Integration Times
  • Sii: 194x180s (9.7 hours)
  • Ha: 196x180s (9.8 hours)
  • Oiii: 197x180s (9.85 hours)

Equipment
  • Telescope: GSO 6" f/4
  • Mount iOptron CEM40
  • Camera: ASI1600-MM Pro
  • Filters: ZWO Sii/Ha/Oiii

Processing Details
Preprocessing
  1. WBPP for calibration
  2. SubframeSelector
  3. ImageRegistration
  4. ImageIntegration
  5. DrizzleIntegration (Scale=2.0 / VarK=1.5)

Linear (on each channel)
  1. DynamicCrop
  2. DBE
  3. Deconvolution
  4. IntegerResample (Downsample 2x)
  5. TGVDenoise
  6. MultiscaleMedianTransform for noise reduction
  7. ArcsinhStretch (x2)
  8. HistogramTransform

Non-LinearĀ 
  1. Pixelmath to create SHO color image
  2. Extract L from SHO
  3. LocalHistogramEqualization on starless L (128/4/0.1 and 256/8/0.05)
  4. MLT for sharpening on starless L
  5. Recombine L with stars using PixelMath
  6. ChannelCombination to recombine L and a*b channels
  7. Curves (x1000) for color and contrast adjustments

Sessions

Date Ha Oiii Sii
2021-09-12 2.7 2.7 2.7
2021-09-13 2.65 2.55 2.55
2021-09-14 2.45 2.55 2.45
2021-09-15 1.4 1.4 1.35
2021-09-16 1.25 1.35 1.35
Total 10.45 10.55 10.4

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