The Iris Nebula In Cepheus
The Iris Nebula ( NGC 7023) is a reflection nebula where dust in our galaxy is being illuminated by a hot blue star at the centre of the image. It is approximately 1,300 light-years away and six light-years across. Acquisition: William Optics GT81, WO Flat 6AIII 0.8x reducer, ZWO ASI1600MM-Cool, Atik EFW2, Astronomik L, R, G, …