Unit 3: Understanding Our Solar System

Front

Constellation

Back

A group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.

Front

Electromagnetic Radiation

Back

Energy that is propagated through space or through a material medium in the form of electromagnetic waves.

Front

Electromagnetic Spectrum

Back

The range of all types of electromagnetic radiation.

Front

Frequency

Back

The number of occurrences of a repeating event per unit of time.

Front

Gamma Rays

Back

High-energy electromagnetic waves emitted by radioactive atoms and in nuclear explosions.

Front

Infrared Light

Back

Electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves.

Front

Light-Year

Back

The distance that light travels in one year, approximately 5.88 trillion miles.

Front

Planet

Back

A celestial body moving in an elliptical orbit around a star.

Front

Radio Telescope

Back

A form of directional radio antenna used in radio astronomy.

Front

Radio Waves

Back

Electromagnetic waves with wavelengths longer than infrared light.