I created a sun for a little space project and im at a point where i need some help 
http://img404.imageshack.us/img404/9916/hasunxu5.jpg
and animated (quality is pretty bad <= youtube)
http://www.youtube.com/watch?v=2GiIAGxSU4c
and the .blend
http://www.megaupload.com/?d=Z5BR0ZZO
the next step would be to animate the protuberances and the sun textures too make it look like a living sun :eyebrowlift2:
Hope you guys have some ideas.
Soenke