I've taken images of nebula (actually hand paintings) and done some conversion on them in Paint Shop Pro to isolate them (i.e., made everthing transparent except the nebula). Then I've dropped that image onto a single plane and also mixed the image with a value in the transparency channel. Then, with a simple star map (white dots on black) mapped into the background of the scene, I can "hang" the nebula anywhere and then shoot footage in the "space set". The final result is relatively cheap render time wise and you can shoot at any angle etc. You could casually do this with the image you've posted. -Kix

-Kix