The Sharpless Catalogue is a collection of 313 emission nebulae compiled by American astronomer Stewart Sharpless in 1959. These nebulae are regions of glowing hydrogen gas, often marking areas of active star formation within our Milky Way galaxy. Many famous deep-sky targets, such as the Eagle Nebula (Sh2-49) and the Rosette Nebula (Sh2-275), come from this catalogue.

Using the interactive tool below, you can explore which Sharpless objects are currently highest in the sky from your location — perfect for planning your next astrophotography session or visual observation.