ben_danger said:it would be pretty intense if a sun was visible, or the explosion of the executor giving a blinding light perhaps? the blinding light could be used to one of the combatants advantages?
Well by the time the Executor exploded into the Death Star II, the shield was down by then and the Emperor was thrown down that shaft by Vader - so the duel would have been over.
It could be some other kind of explosion like an additional rebel ship blowing up perhaps.