SH2-157 The Lobster Claw Nebula - with NGC 7635 (The Bubble Nebula) and M 52 Globular Cluster.

SH2-157, also known as the Lobster Claw Nebula, is an emission nebula located about 11,000 light-years away in the constellation of Cassiopeia. The red/orange portions of the nebula are made up of strong HII regions predominantly yellow part of the nebula is a very large H II region. The blue-colored regions are predominately from the emission of light from molecular oxygen. To the left of the image, you can see NGC 7635 - the Bubble Nebula, which is much more widely known. Also visible is the star cluster NGC 7510, seen at the top right of the image. Down left from Bubble Nebula the M 52 Globular Cluster. The first foto is the NB version, the second is in quasi-natural colors. Taken through L-extreme (8,5h) and L-pro (1,5h) filter, with AT65Q telescope ASI2600MC camera in NYX 101 mound from Nea Moydania SEP-2023. Enjoy.