Thank you for engaging in useful discussion. No I do not have a solid opinion on this phenomenon. I have followed numerous leads, including the theory that there are other objects in the sky that we are unaware of (search theories about Rahu and Ketu), and another theory that the moonlight shows it electro-magnetic ‘charge’.. you might find that one quite thought provoking, and so here’s a condensed infographic for that... https://pic8.co/sh/83vTar.jpeg There’s another theory that the sun is outside the dome so what we see is its refraction, but having also done a lot of scuba diving, I find that less likely. Haven’t ruled it out, but do not give much time to it. Except it did lead me to sundogs, which are also fascinating. I do not claim to have all the answers. I am a truth seeker. I can also admit when I am wrong, but after testing and te-testing, I am sure that there is no curvature. Although I have considered the option that the actual circumference of the earth is way bigger than the accepted circumference, but I discarded this theory due to the inherent properties of water which causes it to be level when at rest. Like in a glass, bath, pool, lake and ocean. Thank you.