The Soul Nebula

Westerhout 5 (also known as W5, Sharpless 2-199, LBN 667, or Soul Nebula) is an emission nebula located in Cassiopeia. Several small open clusters are embedded in the nebula: Collinder 33 and 34 in the head and IC 1848 (Collinder 32) in the body. The small emission nebula IC 1871 is present just left of the top of the head, and Sh2 199 is just below the lower back area.