M110 is an elliptical galaxy that is a small companion in orbit around the larger spiral galaxy M31. Charles Messier actually only listed 109 objects, but M110 is usually added as he did describe it in his journals. Although it is of similar brightness to the other companion galaxy M32, as it is larger its surface brightness is lower, making it more difficult to see.
M110 - The Extra Messier Object
- Category: Astrophotography