what sort of camera do you have? does it have digital zoom or optical zoom?
can you control the iso settings? if you have it on 100 iso try it on something higher.
also how are you holding the camera to the eyepiece? if its just hand held you are probably getting movement. you should use a tripod or fins a way of attaching the camera to your scope.
and finally, your shot looks a bit out of focus. is your scope focused when you are shooting and do you have your cameras focus set to infinite?
hope some of this helps