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Chapter 25 Stars and Galaxies Section 1 & 2

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1.
2 points
An aurora, like the aurora borealis is caused by
2.
2 points
Astronomers use a star's _________ to determine how far it is from the Earth.
3.
2 points
What does CME stands for?
4.
2 points
A binary system is composed of ___________stars
5.
2 points
________________ is the process that creates energy in the sun.
6.
2 points
By studying a star's spectra, scientists can determine _________ found in the star's atmosphere
7.
2 points
The North Star, ____________________ is positioned almost directly over the North Pole.
8.
2 points
The _______________ is a measure of the amount of light received on earth.
9.
2 points
Prominence, or huge arching columns of gas, are thought to be caused by ___________.
10.
2 points
Energy produced by the sun reaches the Earth through ___________.
11.
2 points
The ______________ of a star is a measure of the amount of light it give off.
12.
2 points
Our sun is considered a star of __________ temperature
13.
2 points
Circumpolar constellations___________________.
14.
2 points
Why are circumpolar constellations visible all year long?
15.
2 points
Particles that escape from the sun's ___________ move through space as solar wind.
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