The Universe Study Guide Page 3
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1
2
3reach Earth?
15. What is a
A collection of gas and dust from which stars form.
nebula?
16. What is the
Absolute magnitude is the actual brightness of the star.
difference
between absolute
The brightness we see here on Earth is the apparent
magnitude of a
magnitude which may be far less bright than the absolute
star and the
magnitude.
brightness we see
here on Earth?
17. Where are we
located in the
Milky Way?
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