A mosaic of the region in Cassiopeia and Cepheus containing the main nebulas: the Bubble Nebula (NGC 7635) at lower left, and the Cave Nebula (Sh 2-155) at upper right. At left is also the bright Messier open cluster M52. The small yellowish cluster at right is NGC 7419. The small cluster at lower centre is NGC 7510. The small nebula just left of centre is NGC 7538.

alan dyer bubble nebula cassiopeia cave nebula cepheus emission nebula m52 messier mosaic ngc 7419 ngc 7510 ngc 7538 ngc 7635 new mexico sh 2 155 astronomy astro photography night sky star cluster stargazing stars sky skies science nature astro