Not only moon every astronomical object shows magnification on horizon. In fact the objects in horizon is far than zenith, then how? Actually it explained as an optical illusion, nearer horizon we compare the object with our terrestrial objects so we realized that which become big. But i didn't satisfy with this answer, because the absence of terrestrial objects it shows its magnification , So i try to find my own answer.
Our atmosphere is just like Plano convex lens and also our eye has a convex lens, due to the combination of these two lens we get an natural telescope and it magnifies in order of (fo/fe) where "fo" is the focal length of Plano convex lens, "fe" is the focal length of eye lens. In horizon refractive index of Plano convex lens is increases which enhance the focal length and hence magnification occur. Don't be think that the increase in contrast of moon in horizon due to this lens combination, it is happens due to the long distance which scatter the majority of light rays from the moon so we get a good big moon.
" I have no evidence to prove that this so not to believe me."
Our atmosphere is just like Plano convex lens and also our eye has a convex lens, due to the combination of these two lens we get an natural telescope and it magnifies in order of (fo/fe) where "fo" is the focal length of Plano convex lens, "fe" is the focal length of eye lens. In horizon refractive index of Plano convex lens is increases which enhance the focal length and hence magnification occur. Don't be think that the increase in contrast of moon in horizon due to this lens combination, it is happens due to the long distance which scatter the majority of light rays from the moon so we get a good big moon.
" I have no evidence to prove that this so not to believe me."
