Where's the source image?

Doesn't the title of the image give that away erikuri?? Anyway a pretty simple chop but I like the effect.

Well, Ray, if I don't know how author used the source image, I can think the moon had the color modified by any other way... You can change a color using blending mode layers, curves, hue... that's why I asked.

sky is a little on the empty side in this image to you may want to take a look at this as well will give you a more convincing effect.

http://www.photoshopessentials.com/photo-effects/starry-sky/

ok erikuri, fair call. Hard to tell without an SBS and while we assume the texture is overlaid on the orange, we cant be sure.