At the end of The Last Jedi,
Luke sees a sunset with two (2!) suns, which beautifully calls back to his contemplative scene on Tatooine in ANH. I pointed out after watching it that I thought it was just in Luke's mind, but everyone I was with didn't see it that way (not at first, anyway).
Is there any canon info that says one way or another whether Ahch-To has two suns or whether this was just
what Luke saw in his mind as he became one with the Force?