space vocab

Front

All space and matter that space contains

Back

universe

Front

Self-luminous celestial body of gas held by gravity, generating energy through nuclear reactions.

Back

star

Front

Stable stars in middle phases on the H–R diagram

Back

main sequence

Front

A large, bright feature extending from the Sun's surface

Back

prominence

Front

Second gaseous layer of the Sun's atmosphere; reddish color

Back

chromosphere

Front

Area of the Sun where energy is transported by convection; outer layer.

Back

convection zone

Front

Layer in a star's interior where energy is transported by radiative diffusion and thermal conduction.

Back

radiative zone

Front

Cumulative atmosphere of the Sun radiating light

Back

photosphere

Front

Eruption of radiation from the Sun

Back

solar flare

Front

Spot on the Sun's surface that appears dark against its surroundings.

Back

sunspot