Astrophoto: Iris Nebula by Thad Szabo

Here’s a great deep sky photo of the Iris Nebula (NGC 7023) in Cepheus by astrophotographer Thad Szabo. This image was taken from near Alder Springs, California, USA on the night of 23/24 June 2012. On Flickr, Thad said this is a “combination of a stack of 2 min exposures and a stack of 6 min exposures. Shot with 9.25″ Edge HD at f/2.3 with Hyperstar and Atik 314L+ color CCD. Stacking done in Nebulosity; final processing in PS CS 5 with help from Annie’s Astro Actions.”

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