The moon is a spherical object, but the shape of the visible moon or shape appears to reshape the moon in the sky varies from day to day. Each day, the moon appears to be a crescent that is continuously increasing to full size. Then the shape of the moon appears cleft and the size drops continuously until the moon is invisible. Then the shape of the moon appears to be a crescent, until it is full again. This change is unique every month.
正在翻譯中..
