Crab nebula (M1)

Stacking mode: Custom Rectangle
Alignment method: Automatic
Drizzle x2 enabled
Stacking step 1 ->815 frames (Gain: 200) - total exposure: 2 hr 15 mn 50 s
RGB Channels Background Calibration: Yes
Per Channel Background Calibration: No
Method: Median Kappa-Sigma (Kappa = 2.00, Iterations = 5)
-> No Offset -> Dark: 1 frames (Gain : 200) exposure: 10 s
-> No Flat
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Extraction du gradient (Correction: Subtraction)
Neutralisation du fond du ciel
Étalonnage des couleurs
SCNR (type=0, qté=1.00, préserve=true)
Transf. histogramme (mid=0.018, lo=0.000, hi=1.000)