Coalsack nebula
The Coalsack dark nebula (or simply the Coalsack) is the most prominent dark nebula in the skies. It can easily be seen with the naked eye as a dark patch silhouetted against the southern Milky Way.
It was known pre-historically in the Southern Hemisphere and was observed by Vicente Yáñez Pinzón in 1499. The Coalsack is about 600 light years away from Earth, in the constellation Crux.
Coalsack Nebula Media
Image processed by JIm DeLillo with data from TelescopeLive
A depiction of the emu in the sky, which is an Australian Aboriginal constellation consisting of dark clouds rather than of stars. The European constellation on the right is Crux, or the Southern Cross, and on the left is Scorpius. The head of the emu is the Coalsack.
