Horizons: Exploring the Universe (MindTap Course List)
14th Edition
ISBN: 9781305960961
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Question
Chapter 8, Problem 1RQ
To determine
Why Earth-based parallax measurements are limited to the nearest star?
Expert Solution & Answer
Answer to Problem 1RQ
Earth-based parallax system is limited to nearest stars because earth atmosphere smears stars images which makes difficult to measure the parallax from earth.
Explanation of Solution
Measurement of parallax is a very difficult task because stars at a larger distance makea very small angle.
When we measure the parallax angle from Earth even from a very good observatory, the earth atmosphere smears the images of the star and makes the diameter of the star around 1 arc second, which makes it difficult to measure the parallax from Earth.
That is why Earth parallax system is limited to the nearest star.
Conclusion:
Because earth atmosphere smears stars images which makes difficult to measure the parallax from earth
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Chapter 8 Solutions
Horizons: Exploring the Universe (MindTap Course List)
Ch. 8 - Prob. 1RQCh. 8 - Why was the Hipparcos satellite able to make more...Ch. 8 - Prob. 3RQCh. 8 - Prob. 4RQCh. 8 - Prob. 5RQCh. 8 - Prob. 6RQCh. 8 - Prob. 7RQCh. 8 - Prob. 8RQCh. 8 - Prob. 9RQCh. 8 - Prob. 10RQ
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