Sun & Star Vocab

Front

Theory of universe's origin from a single point, expanding ever since.

Back

Big Bang Theory

Front

A huge group of stars, systems, clusters, dust, and gas, bound by gravity.

Back

Galaxy

Front

An object with gravity so strong that nothing, not even light, can escape.

Back

Black Hole

Front

Central region of the sun where nuclear fusion occurs.

Back

Core

Front

Tightly packed gas region in the sun's interior where energy is transferred mainly as light.

Back

Radiative/Radiation Zone

Front

Middle orange-red layer of a star's atmosphere.

Back

Chromosphere

Front

Outermost layer of the sun's interior where hot gas rises and cooler gas sinks.

Back

Convection Zone

Front

Inner layer of the sun's atmosphere giving off visible light.

Back

Photosphere

Front

Wide, outermost layer of a star's atmosphere, visible during a solar eclipse.

Back

Corona

Front

A dark, cooler area of gas on the sun's surface.

Back

Sunspot