A little test that I had done a long time ago. No one has ever seen it till now, so posting it :) It's supposed to be an alien planet.
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				Cool! What is the secret for those stars? 
			
			
			
				Good old Photoshop. I just played with noise and then applied levels and crunched it to kill off a lot of the density. Created multiple layers in the same way and masked each one randomly to produce somewhat of a star field. ;)
			
			
			
				Looks convincing. Good weather patterns.
			
			
			
				Yepp, nice panet details. Like!
			
			
			
				Very nice. Are the cloud shapes and distribution image-based, or procedural?
- Oshyan