This is Messier 51a, M51a, NGC5194 or more commonly known as The Whirlpool Galaxy. This Photograph was taken the same as the rest of them with my 8" Meade Telescope and Canon T3 DSLR Camera. This is 26 photos stacked in Deep Sky Stacker and Processed with GIMP.
   This Galaxy is estimated to be around 23 Million Light years from the Milky Way Galaxy located in the Constellation Canes Venatici. You can see off to the left is it's companion Galaxy NGC5195. It was first discovered by Charles Messier in 1773, it's companion wasn't discovered until 1781. This Galaxy is said to have a radius of  43,000 Light Years. This Galaxies location which is located just below the last star in the Handle of Ursa Major ( The Big Dipper ). Means it is circumpolar, in the Norther hemisphere it can almost always be seen just like the Big Dipper. This Galaxy has what we call a Spiral Structure which is what the Milky Way was thought to be until they discovered the Milky Way may in fact be a barred Spiral.