Technical details:
Location / Date: Outside of Kopparberg, Västmanland, Sweden / 2017-March
Optics: Orion Optics UK AG12
Mount: 10 Micron GM1000 HPS (Unguided)
Camera: Canon EOS 100D (Modded with Baader ACF filter)
Exposure: 44 x 4 minutes, all shot at ISO 3200 (cumulative exposure time is 2 hours and 56 minutes)
Processing: Pixinsight and Photoshop
Image details:
NGC 4565 (also known as the Needle Galaxy or Caldwell 38) is an edge-on spiral galaxy about 30 to 50 million light-years away in the constellation Coma Berenices.
It lies close to the North Galactic Pole and has a visual magnitude of approximately 10. It is known as the Needle Galaxy for its narrow profile.
First recorded in 1785 by William Herschel, it is a prominent example of an edge-on spiral galaxy.
NGC 4565 has at least two satellite galaxies, one of which is interacting with. It has a population of roughly 240 globular clusters, more than the Milky Way. (Information from Wikipedia)