Messier 1, also known as the Crab Nebula, is a supernova remnant located in the constellation Taurus, approximately 6,500 light-years away from Earth. The object reaches its annual culmination at astronomical midnight (CaM) around December 16th.

Messier 1, also known as the Crab Nebula, is a supernova remnant located in the constellation Taurus, approximately 6,500 light-years away from Earth. The object reaches its annual culmination at astronomical midnight (CaM) around December 16th.
In the year 1054, visible even during the day as a supernova, the remnant known as the Crab Nebula is now expanding visibly.