Nebulae on the borders of the constellations of Sagittarius and Serpens

This chart shows the constellation of Serpens Cauda, the tail-part of the split constellation of Serpens (The Snake). The famous Eagle Nebula, Messier 16, lies in the corner of this constellation and its equally well-known campanion, the Omega Nebula, Messier 17, just across the border into Sagittarius (The Archer). Yellow circles represent star clusters and green squares nebulae.

The region of sky covered by the huge VST image of this region is marked with a red rectangle.