Great effort! The main thing is to make sure that the camera and lens can't move around when you take the picture. A remote that lets you control the camera is of huge benefit when you need to keep everything very still.
I have an older camera with no ability for a remote or cable release, so I put the self timer on to 10 seconds to give the camera time to settle from the button press. You could try that until you sort out a remote. It was kind of sporting doing that last night considering the moon was only in the clear for 9.8 seconds at a time :-)