Study Guide Space Systems

Front

Define an Astronomical Unit

Back

The distance used to measure in Space

Front

Define Astronomy

Back

Science which deal with celestial objects, space, and the physical universe as a whole

Front

Define Axis

Back

The line about which an object rotates.

Front

Define Rotation

Back

The circular movement of an object about a point in space.

Front

Define Revolution

Back

The action by a celestial body in an orbit or elliptical course.

Front

Define Solar Eclipse

Back

When the sun is obscured by the moon.

Front

Define Lunar Eclipse

Back

When the moon passes directly behind the Earth and into its shadow.

Front

Define Satellite

Back

A natural object or spacecraft orbiting a larger astronomical body.

Front

Define Asteroid

Back

A piece of rock or dust that moves through space.

Front

Define Galaxy

Back

Huge collection of gas, dust, and billions of stars and their solar systems.