Can you explain you imaging train. Ie what kind of scope and are you using any reducers or barrows, any filters? It looks a little like an internal reflection. Take an image with the lens cap on and see what happens. It may be leakage from somewhere.
Your focus needs a bit more work as well. Turn your scope too a bright star and use the live view function and zoom in as much as you can then adjust your focus.
If your using a dslr I would highly recommend backyard eos software. It's an image capture software designed for dslrs. It has a focus read out to tell you how close your focus is. It also has an excellent capture plan and the price is very reasonable
http://www.backyardeos.com/.
I'm in no way affiliated with this software or developer, I just think its an awesome piece of software.