The visible surface of the sun
A bright loop in the Sun's corona
The sun's atmosphere
A dark spot on the photosphere of the sun
Energy from the star moves out through this zone
Most of the Sun's mass is in this layer
A brief burst of energy from the sun's photosphere
A fast-moving stream of particles thrown into space by solar flares
In this zone, cooler particles are pulled down by gravity
The combining of hydrogen particles
Hot bright areas, gives a grain look to the surface of the Sun
Group of stars, gas and dust
Distance light travels in one year
Most common type of star
Everything that exists
How bright a star appears to be
The actual brightness of the star
Arms of the galaxy contain young stars, protostars, dust and gas
it is similar to a spiral galaxy but the spiral extends from a bar of stars that stretches from the center
They range from almost spherical like a baseball to to a shape like a flattened football they do not seem to rotate
Group of stars with not obvious shape
The star continues to shine dimly for billions of years as it slowly cools
The star may expand to 100 times its former size.
A star begins within a huge cloud of hydrogen, helium, and tiney particles of dust
After millions of years, the particles begin to squeeze together, attracted to each other by gravity. As it grows in mass, its temperature rises until it begins to glow
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