Explorations: Introduction to Astronomy (Arny), 6th Edition

Chapter 2: The Rise of Astronomy

Questions for Review

1
Where on the celestial sphere would you look for the planets?
2
Will a planet in retrograde motion rise in the east or west?
3
If you see a bright "star" in the sky, how could you tell whether it is a star and not, for example, Venus?
4
Describe the major astronomical contribution(s) of the following in a sentence or two for each: Aristotle, Aristarchus, Eratosthenes, Ptolemy, Copernicus, Tycho, Kepler, Galileo, and Newton.
5
What is meant by the phrase angular diameter?
6
If you triple your distance from an object, what happens to its angular size?
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