Horizons: Exploring the Universe (MindTap Course List)
14th Edition
ISBN: 9781305960961
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Textbook Question
Chapter 19, Problem 5P
What is the maximum angular diameter of the largest asteroid, Ceres, as seen from Earth? Can Earth-based telescopes detect surf ace features? Can the Hobble Space Telescope’ (Hint: Use the small-angle formula in Reasoning with Numbers 3-1.) (Notes: The angular resolution of Earth-based telescopes is about 1 arc second and of HST about 0.1 arc second. Ceres’ average distance from the Sun is 2.8 AU.)
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At what average distances (in AU) from the Sun would you expect to find Kirkwood gaps where the orbital period of asteroids are respectively four-ninths, and two-fifths, of the orbital period of Jupiter? (Hint: use Kepler's third
law.)
inner gap at
AU
outer gap at
AU
Compare your results with the figure.
7:2
3:1
8,3 5;2
7:3 9:4
2;1
9:5 7:4 53 8:5
3:2
Resonances
Gap
Gap
Gap Gap GapGap
Gap
Distance from sun (AU)
O The results agree with the figure.
O The results do not agree with the figure.
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from the Sun. A typical asteroid has an albedo, or reflectivity, A ~ 0.3. At our closest
approach to the asteroid, we make a measurement of the flux coming from the asteroid to
be F = 3 × 10-15 w m-2. What is the radius of the asteroid in km? Include a labelled
diagram along with your calculations.
No handwritten
Chapter 19 Solutions
Horizons: Exploring the Universe (MindTap Course List)
Ch. 19 - What do Widmanst?tten patterns indicate about the...Ch. 19 - What do chondrules tell you about the history of...Ch. 19 - Why are there no chondrules in achondritic...Ch. 19 - Why do astronomers refer to carbonaceous...Ch. 19 - Prob. 5RQCh. 19 - Prob. 6RQCh. 19 - Why do astronomers think the asteroids were never...Ch. 19 - Prob. 8RQCh. 19 - What evidence indicates that some asteroids have...Ch. 19 - What evidence indicates that some asteroids have...
Ch. 19 - Prob. 11RQCh. 19 - What is the difference between a gas tail and a...Ch. 19 - Prob. 13RQCh. 19 - What are the hypotheses for how the bodies in the...Ch. 19 - Prob. 15RQCh. 19 - Prob. 1DQCh. 19 - Do you think the government should spend money to...Ch. 19 - Prob. 1PCh. 19 - If a single asteroid 1 km in diameter were to be...Ch. 19 - If a trillion (1012) asteroids, each 1 km in...Ch. 19 - Prob. 4PCh. 19 - What is the maximum angular diameter of the...Ch. 19 - Prob. 6PCh. 19 - Prob. 7PCh. 19 - Prob. 8PCh. 19 - What is the orbital period of a comet nucleus in...Ch. 19 - The mass of an average comet’s nucleus is about...Ch. 19 - Prob. 1LTLCh. 19 - Prob. 2LTLCh. 19 - Prob. 3LTL
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