Sunburst, sort of?

I was wondering if there was a quickn'easy way to make a sort-of... sunburst, I suppose? With those lines all emerging from a set point? Such as with this icon:

See how there is all those rainbow lines as the backdrop?

I'd like to do that, but with the lines all coming from a point off to the right (behind the subject of the icon I'm making). I use PS CS2.

Thanks in advance!