This is an effect known as Interior Designer!
When we see the Moon (and also the Sun) which rises or sets on the horizon that we are amazed the size apparently greater than when they are high in the sky.
In Letters to a German Princess ( delicious lessons given in correspondence to one of the most noble ladies of the court of Frederick II of Prussia in 1775) even the great mathematician Euler tried to provide a rational explanation for the phenomenon.
Meanwhile, we say that there is no physical principle that justifies the effect: the distance of the Moon (or Sun) from our Earth remains substantially unchanged, and any theories on refraction caused by the air thicker than the lower atmosphere can only justify distort the image but not its size.
Many think it is an illusion that our brains would be comparing the Moon (or Sun) to homes, trees and mountains on the horizon, against which it would seem much bigger.
The statement was supported by illusions such as the following.
The "Moon" on the left is larger than the right one ... but if you tried to measure them ...
This is not a convincing explanation.
fact the illusion of size also occurs where the horizon is empty, and does not provide terms of comparison (such as know the sailors when sailing in the ocean at night).
So how do you explain the phenomenon?
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