The Sadr Region (also known as IC 1318 or the Gamma Cygni Nebula) is the diffuse emission nebula surrounding Sadr (γ Cygni) at the center of Cygnus's cross. The Sadr Region is one of the surrounding nebulous regions; others include the Butterfly Nebula and the Crescent Nebula. It contains many dark nebulae in addition to the emission diffuse nebulae.
| Emission nebula | |
|---|---|
 This picture shows IC 1318 / gamma Cyg nebula, NGC 6914, IC 1311, NGC 6888 / Crescent nebula in the lower left as well as some other nebulous regions | |
| Observation data: J2000 epoch | |
| Right ascension | 20h 16m 48.0s[1] |
| Declination | +41° 57′ 24″[1] |
| Constellation | Cygnus |
| Designations | IC 1318, Gamma Cyg Nebula, Sadr Region |
Sadr itself has approximately a magnitude of 2.2. The nebulous regions around the region are also fairly bright.
Image gallery
On the left image side are the bright North America Nebula (left bright part) with Sadr region (right bright part) in the Cygnus X region, visually interrupted by the Cygnus rift, of the constellation Cygnus, in this X-ray image.
Butterfly Nebula in narrow band image SHO (north is approximately to the left)
Amateur image of Sadr (center star) surrounded by IC 1318.
