An experiment
Remember the theory about looking at the Moon when it's close to horizon? I think Steve suggested looking at it upside down.
Well, that's what I did during our stargazing hours this evening (I talked about our discussion to the friends); so, I looked at the moon (behind me), between the legs) and YES!! It did appear smaller than when looked at straight up.
Raoul (they all thought I was crazy, but then, perhaps they're not that wrong).