333:M17 Omega Nebula – 2015/09/11

Merging two shots, one taken on July 2010 ( ISO 3200 1.5 min x few subs) and another on August 2015 (ISO1600 3 min x 2 subs). A luminance image is created from both the 2010 and the 2015 images. The RGB image is generated out of the 2015 shots.