The movement of an object around a center or another object

The imaginary line through the Earth that extends from the north pole to the south pole and is the center of the Earth's rotation.

The slant of Earth's axis, which is 23.5 degrees from vertical compared to Earth's orbital plane around the Sun. As a result, the North Pole always points toward the North Star

curved path followed by a satellite as it revolves around an object

When the Moon passes between the Earth and the Sun; occurs when the Sun, the Moon, and the Earth directly line up; lasts for less than 12 minutes

when the full moon passes into Earth's shadow, causing the moon to appear reddish in color when the Sun, Earth, and the Moon directly line up: lasts 1-3.5 hours

the shape of the illuminated portion of the Moon as seen by an observer, usually on Earth

the Moon's repeated pattern of movement and changes in appearance due to its position relative to Earth and the Sun

When the moon appears to be getting smaller

When the moon appears to be getting larger

the rise and fall of the sea's levels caused by the gravitational attraction of the Moon and the Sun