The Layers of the Sun & Vocab.

Front

Brief burst of energy from the sun’s photosphere

Back

solar flare

Front

A dark spot on the sun's photosphere

Back

sunspot

Front

Sun's atmosphere

Back

Corona

Front

Visible surface of the sun

Back

photosphere

Front

Distance light travels in one Earth year; ~9.5 trillion km

Back

light-year

Front

A group of stars, gas, and dust

Back

galaxy

Front

Everything that exists: planets, stars, dust, gases, energy.

Back

universe

Front

A band of stars with average color, size, magnitude, and temperature.

Back

main sequence

Front

Brightness of stars

Back

Magnitude

Front

Fast-moving stream of particles from solar flares

Back

solar wind