I believe yes!
Someone posted a file here with a sun somewhat like your asking about. Mahnmut is the posters name.
The render has a sun that looks much like you want. And she posted the whole file. But I do not remember the name of the thread. You would have to look through Mahnmut's post in image sharing to find it. THe file is in image sharing and not file sharing, I believe.
I dont believe you can animate that particular solution. But I really dont know for sure on that point. I do know that the render looked great! Its worth search for.
Maybe someone will see this and remember the name and post it.
Edit. I do have the file. If you cannot find it, and no one remembers the name. With Mahnmut's permission I can re-post it.