astronomy paper

862 Words Jun 17th, 2014 4 Pages
University of Phoenix Material

Basics of Astronomy Worksheet

Complete the table based on the readings for this week: Ch. 1–4 of The Essential Cosmic Perspective.

Term or concept
Definition and explanation
The Universe

1. What is Earth’s Sun, and what is its role in the solar system?
2. What is the Milky Way galaxy and the sun’s position in it?
3. What is the Big Bang, and what does it say about the age of the universe?
4. What is meant by the phase “looking out in the universe is looking back in time?”
1. The earth’s sun is a star, it generates heat and light through nuclear fusion.
2. The Milky Way galaxy is the constellation that earth belongs to, the sun is just another star within it.
3. The big bang is the
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The sun is orbiting the center of the Milky Way galaxy at 70,000km/hr.
12. From a humans point of view the galaxies are all moving away from earth.
Significance of the Celestial Sphere

13. What important directions and coordinate systems help you find your way around the sky?
14. Why do stars have different levels of brightness, and how does one describe their brightness as compared to one another?
15. What are constellations?
16. What is Polaris, and what is its significance in the sky?
17. Why does the Moon change its phase, how does it move, and how do these combine to create eclipses?
13. The horizon and meridian, azimuth, latitude, and longitude.
14. Different levels of brightness are due to different levels of heat, and different distances.
15. Constellations are borders that the celestial sphere is divided into
16. Polaris is the northern star, it is always visible to people.
17. The moon changes its phase because it orbits the earth, and half the moon always faces the sun, the other half is always dark, we just see the combination of the two.
History of Astronomy

18. What is the science of astronomy?
19. What is the scientific method, and how does it relate to the science of astronomy?
20. Who was Aristotle, and what was his relationship to the science of astronomy?
21. What was the Copernican revolution?
22. What observations did Galileo make that proved that planets go around the Sun?
23. What laws tell

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