Relationships in the Universe Vocabulary

A small rocky object that orbits the sun

• galaxy

• Asteroid

• Comet

• Moon

A system of organization. In this case the largest to smallest

• solar system

• comet

• Hierarchy

• satellite

A small icy object that orbits the sun

• asteroid

• moon

• astronomical Unit

• Comet

A huge collection of stars, gas, and dust.

• galaxy

• Universe

• Solar system

• Star

The rate at which something occurs or is repeated over a particular period of time.

• astronomical unit

• hierarchy

• moon

• frequency

A celestial body that makes an orbit around a planet.

• Moon

• Solar System

• Star

• Comet

The average distance from the Earth to the sun

• Electromagnetic Spectrum

• Light Year

• Astronomical Unit

• Galaxy

A range of radiant energy carried out by electromagnetic waves

• Hierarchy

• Electromagnetic Spectrum

• Astronomical unit

• Solar System

A gravitationally bound system of the sun and the objects that orbit it

• Solar System

• Universe

• Galaxy

• Star

Any small object that orbits a larger object, except a star

• Satellite

• telescope

• Star

• Comet