Sadr Region

Sadr, Gamma Cygni (γ Cyg) is a yellow-white supergiant star located in the constellation Cygnus. With an apparent magnitude of 2.23, it is the constellation’s second brightest star, after Deneb. Sadr lies at an approximate distance of 1,800 light years from Earth. It lies in a rich field of the Milky Way and is surrounded by the diffuse emission nebula IC 1318, also known as the Gamma Cygni Nebula or Sadr Region. It is not physically related to Sadr, but merely lies in the same line of sight. The nebula is located much farther away than the star, at a distance of 4,900 light years.