IC 1318

Gamma-Cygni Nebula

The Gamma Cygni or Butterfly Nebula is an emission nebula and HII area in the constellation Swan. The nebula is about 4,900 light years away from Earth.


recording data

object IC 1318
date of recording
5 June 2017, 28 June 2017
exposure 5.2 h, H-alpha: 128x100", OIII: 61x100"
telescope Celestron RASA F2.2
focal lenght 620mm
filter Baader f/2 Highspeed 2" H-Alpha, Baader f/2 Highspeed 2" OIII
camera ZWO ASI1600mmc
guiding 250mm guide scope, MGEN
mount Celestron CGE pro
AstroBin click here

Two glowing wings

The supergiant star Gamma Cygni is located in the centre of the North Cross, in the famous constellation Cygnus. Known by its proper name Sadr, the bright star is located in the centre of this beautiful HII region with a complex of stars, dust clouds and glowing nebulae along the plain of our Milky Way. The field of view extends over 3 degrees (six full moons) in the sky and includes the emission nebula IC 1318 and the open star cluster NGC 6910. formed like two glowing cosmic wings separated by a long dark dust alley, IC 1318's popular name is understandably the Butterfly Nebula. Some distance estimates for Sadr are around 1,800 light years, while the estimates for IC 1318 and NGC 6910 are between 2,000 and 5,000 light years.

Baerenstein Observatory

private observatory
Marcel Drechsler






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