The star-forming region Messier 17 in the constellation of Sagittarius

This chart shows the location of the star-forming region Messier 17, also often called the Omega or Swan Nebula, within the constellation of Sagittarius (The Archer). This map shows most of the stars visible to the unaided eye under good conditions, and the cluster itself is marked as a green square within a red circle. Through a moderate-sized amateur telescope this object appears as a bright bar of haze.