answer true or false.
1. A group of stars that form a pattern is called a constellation.
2. The amount of light that earth recieves from a star is called the star's absolute magnitude
3. The distances of stars from earth are measured in parallaxes
4. The apparent magnitude of a star is the amount of light it actually gives off.
5. Another name for the north star is polaris
6. The absolute magnitude of rigel is less than that of Sirius
7. The apparent shift in an object when viewed from two different positions is called parallax
8. The pattern of dark lines recorded by a spectograph can be used to identify the elementsthat are in a star's atmosphere.
9. The stars appear to change positions in the sky throughout the year because Earth revolves around the sun
10. The apparent magnitude of stars is greater when they are closer to the earth.
11. constellations that circle polaris and are visible year round are called circumpolar constellations
Thanks and have a good day
2007-10-09
10:19:53
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4 answers
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asked by
Anonymous
in
Science & Mathematics
➔ Earth Sciences & Geology