Astronomy Flashcard

Front

A large object in space that is made of gas and produces its own light.

Back

Star

Front

A rocky or metallic object that orbits the sun and is much smaller than a planet. A belt of these can be found between Mars and Jupiter.

Back

Asteroid

Front

A system of planets and other bodies that orbits a star.

Back

Solar System

Front

A natural object that orbits a planet; a natural satellite.

Back

Moon

Front

A system that contains many stars, star systems, and objects orbiting stars. Ours is spiral shaped and called The Milky Way.

Back

Galaxy

Front

Gas giants are far from the Sun and very far from each other. They have many moons and rings.

Back

Gas Giants

Front

The motion of one object around another object; orbit. On Earth, this causes a year or 365 days.

Back

Revolution

Front

An object made of mostly frozen gases that melt into a “tail” as it gets closer to the sun.

Back

Comet

Front

Half of Earth; Northern/Southern or Eastern/Western.

Back

Hemisphere

Front

The turning of an object on its axis. On Earth, this causes a day or 24 hours.

Back

Rotation