COSMIC PERSP.FUND.-MASTERING ASTRONOMY
COSMIC PERSP.FUND.-MASTERING ASTRONOMY
3rd Edition
ISBN: 9780134989273
Author: Bennett
Publisher: PEARSON
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Chapter 1, Problem 4QQ

Choose the best answer to each of the following. Explain your reasoning.

The star Beteigeuse is about 600 light-years away. If it explodes tonight (a) we’ll know because it will be brighter than the full Moon. (b) we’ll know because debris from the explosion will rain down on us from space. (c) we won’t know about it until about 600 years from now.

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Parallax from Jupiter. Suppose you could observe stellar parallax from the orbit of Jupiter. How would it differ from the stellar parallax we observe from Earth? Would it be easier or more difficult to measure stellar distances? Explain.
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General Relativity: The Curvature of Spacetime; Author: Professor Dave Explains;https://www.youtube.com/watch?v=R7V3koyL7Mc;License: Standard YouTube License, CC-BY