ScienceDownEast | ScienceDownEast Astrophotography | Nebulae | IC 1318 Gamma Cygni Nebula | IC 1318 (Gamma Cygni Nebula)

IC 1318 (Gamma Cygni Nebula)
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IC 1318, commonly called the Gamma Cygni Nebula or the Sadr Region, is a large emission (HII) nebula in Cygnus surrounding the bright star Sadr (Gamma Cygni) as seen in projection, though the two are not physically associated: Sadr itself lies roughly 1,800 light-years away, while the nebula is much farther, at around 4,900 light-years. The nebula is ionized by a hot, heavily obscured O-type star and spans over 100 light-years, laced throughout with dark dust lanes and nebulae that give it a mottled, textured appearance. It sits in a particularly rich part of the Cygnus Milky Way, near other notable emission nebulae including the Butterfly Nebula and the...

Total image time was 1 hour.

Moon PhaseWaning Crescent
CameraSeestar S50 Pro (4K Sony IMX585 sensor)
Optics260 mm focal length, f/5.2, 50 mm aperture
FilterLP
Binning1x1
StackingStackingWizard, 60 frames
Date2026-09-08
AstroWizard Processing
GraXpert background extraction (0.5)
Color calibration
BlurXTerminator (0.6)
NoiseXTerminator (linear, 0.9) (x3)
Stretch (deep)
Stretch (deep) (starless)
Star removal (StarXTerminator)
Color recalibration
Saturation adjustment
Contrast (pop) adjustment (x2)
Lighten background
Curves adjustment (x5)
Star recombination (screen blend)



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