O.R.- It looks a little out of focus to me. This could be because it was hand held (but I doubt it), or too slow a shutter speed (don't forget the moon is moving), or just slightly out of focus. A lot of affordable telephoto zoom lenses get a bit soft when used at their max focal length wide open. Atmospheric conditions cause problems as well. Your best bet is a cold night with low humidity, the lens stopped down a bit, a shutter speed of at least 1/125th of a second, and a high enough ISO to allow the shutter speed and aperture. Even if it turns out a little grainy it will look better if it is sharp. Also- if your far away shots are all soft, your lens might need the "infinity" setting adjusted. Any camera repair shop can do this and it isn't very expensive.
An aside: I was given a 600mm lens in pieces by a friend of mine. I took it to a camera repair shop in Toronto to get it put together. After 7 months I called them up to check on progress ( the deal was they would work on it as time allowed) and they said "It's been together for a couple of months, but there hasn't been a clear enough day to set infinity focus."

That is pretty good results for that camera.

This one is pretty good for the money.
http://www.getolympus.com/ca/en/digitalcameras/e-pm2.html

Get a small tripod and use your timer, or a monopod.

If I was that far "into it" I mite consider a telescope I could shoot pics thru,

old_rider wrote on 05/14/14 at 14:08:25:

6x digital zoom is no better than simply cropping the picture in PhotoShop.

For shaky shots, use a tripod or simply prop the camera on something, and use the "self timer" to take your paws off the trigger.

Paladin. wrote on 05/15/14 at 12:01:36:


Digital zoom IS photo shop  

What you want is optical zoom, and depending on glass, it can get pricey. Of course your camera can't take a lens, but they have quite a few mega zoom PS cameras with CMOS processors now, and you can get them for the price of a low end lens.
If you find you want to continue, look at a "bridge" camera. It still is a fixed lens, but it gives you everything a DLSR does, except changing lens and getting dust bunnies  
Also, no more shutter lag in the new cameras, they can focus and shoot just as good, if not better, than entry to mid level DSLR's.

Here is an example. I took this with a Fuji HS50 EXR. The little humming bird was about 10 feet away, I zoomed in, it focused faster than I could hit the trigger (almost) but it was quick enough to not lose my focus with shutter lag, as you can tell by the photo, and we know how hummingbirds love to move quickly  



With a bridge camera you can shoot all manual or program priority , shoot RAW, whatever.... it really gives you a brush, and you get to paint the way you want.