Unit 6 Vocab

Front

Luminous globe of gas which produces its own heat and light

Back

Star

Front

A measure of how bright a star appears as seen from Earth

Back

Apparent magnitude

Front

A system of stars and associated matter, held together by gravitational attraction

Back

Galaxy

Front

A diagram that shows the relationship between the brightness, surface temperature, and color of stars

Back

HR Diagram

Front

Different colors of light emitted based on the chemical composition of the light source

Back

Spectra

Front

The total amount of energy emitted by a star, galaxy, or other astronomical object per unit time

Back

Luminosity

Front

The brightness of a star as it would appear at a standard distance of 10 parsecs from Earth

Back

Absolute magnitude

Front

A large cloud of gas and dust in space, often the birthplace of stars

Back

Nebulae

Front

The scale used to measure the brightness of stars, where lower numbers indicate brighter stars

Back

Magnitude scale

Front

The process by which a star generates energy through nuclear fusion in its core

Back

Stellar fusion