希腊神庙后方的蛾眉月
2023年2月28日 Crescent Moon Beyond Greek Temple Image Credit & Copyright: Elias Chasiotis Explanation: Why is a thin crescent moon never seen far from a horizon? Because the only geometry that gives a thin crescent lunar phase occurs when the Moon appears close to the Sun in the sky. The crescent is not caused by the shadow of the Earth, but by seeing only...