[SPOILER] First BG3 finish, I have a question.

I ascended my Astarion, and at the end of the game, he is standing on the docks, while the sun was still out; he could stand in the sunlight because he was ascended, and it wasn't only the tadpole protecting him.. Has anyone beaten it with Astarion who DIDN'T ascend him? I am curious if he burns up, but I really quite dislike him and don't want to play another game with him to find out.