M51 - The Whirlpool galaxy
I find M51 as one of the most striking images of a galaxy. M51 aka the Whirlpool galaxy along with its companion dwarf galaxy NGC5195 can be seen interacting with each other. This pair of galaxies is located in the constellation of Canes Venatici and is located about 28 million light years away. It is about half the size of our Milky Way and contains only about 10% of the mass. This top-down view allows us to take in the expanse of the spiral arms of this galaxy.
This photo was taken with a full moon very close to the target and it was very difficult to eliminate the bright background due to moonlight. It is a stack of 59 two-minute exposures taken with a Nikon Z6 attached to William Optics ZenithStar 61. The images were processed using SIRIL and Photoshop.