ScienceDownEast | ScienceDownEast Astrophotography | Nebulae | LDN-1235-Shark-Nebula | LDN 1235 (Shark Nebula)

LDN 1235 (Shark Nebula)
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Total image time was 3 hours and 43 minutes.

Moon PhaseFirst Quarter
CameraSeestar S50 Pro (4K Sony IMX585 sensor)
Optics260 mm focal length, f/5.2, 50 mm aperture
FilterIRCUT
Binning1x1
StackingStackingWizard, 223 of 425 frames stacked, 20-pointing mosaic
Date2026-10-18
AstroWizard Processing
Crop
GraXpert background extraction (0.5)
Color calibration
BlurXTerminator (0.6)
NoiseXTerminator (linear, 0.9)
Generalized Hyperbolic Stretch (x3)
Generalized Hyperbolic Stretch (linear)
Stretch (aggressive) (x2)
Str keep
Stretch (deep) (x2)
Stretch (deep) (starless)
Star removal (StarXTerminator)
Darken background (x4)
Saturation adjustment (x3)
Contrast (pop) adjustment (x2)
Curves adjustment (x2)
Color recalibration
Star recombination (screen blend)
Mended
NoiseXTerminator (non-linear, 0.6)
SCNR (green noise removal)



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