Sorry for the delay in getting back to you... had to get a new cpu this one gave up on me!
I see what you have done here, although I am not sure that I understand it all. Not yet. I did try ticking and unticking the color option and when I unticked it no moon showed at all! Not sure why but I am slowly beginning to understand.
I have 2 more questions if you don't mind?
1. How can I save all the settings from the render just for the moon? That way if I want to use the same again all I have to do is load it, or type it, all back in to get the same result on a different landscape.
2. How do I go about making those images to apply to the moon like the 2 files you sent the link for?
I do like the results that those files gave...thank you