ScienceDownEast | ScienceDownEast Astrophotography | Nebulae | 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 Crescent Nebula. Hα, O III, and S II narrowband filters all work well here, revealing intricate structure that is largely invisible in broadband images.
[Source: Wikipedia, en.wikipedia.org/wiki/IC_1318]
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 Crescent Nebula. Hα, O III, and S II narrowband filters all work well here, revealing intricate structure that is largely invisible in broadband images.
[Source: Wikipedia, en.wikipedia.org/wiki/IC_1318]
| Moon Phase | Waning Crescent | ||
| Camera | Seestar S30 Pro (4K Sony IMX585 sensor) | ||
| Optics | 160 mm focal length, f/5.3, 30 mm aperture (APO quadruplet) | ||
| Filter | IRCUT | ||
| Binning | 1x1 | ||
| Date | 2026-09-08 | ||
| AstroWizard Processing |
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