Earth, Sun, Moon System Vocabulary

An imaginary line that passes through a plant’s center and the north and south poles, about which the planet rotates.

The spinning motion of a planet on its axis.

The movement of an object around another object.

A large gaseous body at the center of the solar system.

A natural satellite that orbits a planet.

The path of an object as it revolves around another object in space.

The partial or total blocking of one object in space by another.

The part of a shadow surrounding the darkest part.

The darkest part of a shadow.

Term describing a model of the universe in which Earth is at the center of the revolving planets and stars.

Term describing a model of the solar system in which the Earth and other planets revolve around the Sun.

Either of the two days of the year on which neither hemisphere is tilted toward or away from the Sun.

Either of the two days of the year on which the sun reaches the greatest distance north or south of the equator.

The periodic rise and fall of the level of water in the ocean.

The tide with the greatest difference between consecutive lows and highs.

The tide with the least difference between consecutive lows and highs.

One of the different apparent shapes of the moon as seen from the Earth.

The scientific law that states that every object in the universe attracts every other object.