Astronomy Vocab

Front

Rotation: When an object circles around its own axis or center.

Back

When an object circles around its own axis or center.

Front

Distance from Earth's center to Sun's center.

Back

Astronomical Unit

Front

Object circling an external axis.

Back

Revolution

Front

A celestial body in space that orbits a larger body.

Back

Natural Satellite

Front

Curved path of a celestial object around a star, planet, or moon.

Back

Orbit

Front

A celestial body in an elliptical orbit around a star.

Back

Planet

Front

The sun is an example of a(n) _____________.

Back

Star

Front

Irregularly shaped rocky object orbiting the sun.

Back

Asteroid

Front

A ball of frozen gases, rock, and dust that orbits the sun with a tail stretching away from it.

Back

Comet

Front

A small rock that strikes Earth's surface is a _______.

Back

meteorite