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

Chapter 5: Telescopes

Questions for Review

1
What is meant by the term light-gathering power? How does it affect the ability to see faint objects?
2
What is resolution of a telescope? What physical process limits it?
3
How is resolution affected by the size of a telescope's mirror or lens?
4
What is the difference between a reflecting and a refracting telescope?
5
What are some reasons for using mirrors rather than lenses in telescopes?
6
What is the purpose of an interferometer?
7
Why do astronomers put X-ray observatories in space rather than just on a high mountain?
8
What is meant by adaptive optics?
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