The moon appears larger at the horizon when it is higher in the sky because of

Question

Quizplus · Accepted Answer

The moon appearing larger at the horizon than when it is higher in the sky is primarily due to an optical illusion. This phenomenon, often referred to as the Moon illusion, makes the Moon seem larger near the horizon but does not actually involve any physical enlargement in its size. Factors contributing to this illusion include the presence of visual references (such as trees, buildings, etc.) on the horizon, which our brain uses to interpret the size of the Moon differently than when it is high in the sky with no objects for scale comparison.

The Moon Appears Larger at the Horizon When It Is