Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
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Textbook Question
Chapter 12, Problem 22E
Which would have the longer orbital period: a moon 1 million km from the center of Jupiter, or a moon 1 million km from the center of Earth? Why?
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What would be the period of a (hypothetical) solar-system planet whose orbit has a semimajor axis of 4 AU? Of an asteroid with a semimajor axis of 10 AU?
Which of the moons listed in the table experiences the greater gravitational pull from Saturn? How much greater is it? The mass of Saturn is not needed for this problem.
Moon
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a) Moon around Earth
b) Charon around Pluto
c) About the same for both
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b) Moon
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d) Charon
Chapter 12 Solutions
Astronomy
Ch. 12 - What are the moons of the outer planets made of,...Ch. 12 - Compare the geology of Callisto, Ganymede, and...Ch. 12 - What is the evidence for a liquid water ocean on...Ch. 12 - Explain the energy source that powers the...Ch. 12 - Compare the properties of Titan’s atmosphere with...Ch. 12 - How was Pluto discovered? Why did it take so long...Ch. 12 - How are Triton and Pluto similar?Ch. 12 - Describe and compare the rings of Saturn and...Ch. 12 - Why were the rings of Uranus not observed directly...Ch. 12 - List at least three major differences between...
Ch. 12 - The Hubble Space Telescope images of Pluto in 2002...Ch. 12 - Saturn’s E ring is broad and thin, and far from...Ch. 12 - Why do you think the outer planets have such...Ch. 12 - Ganymede and Callisto were the first icy objects...Ch. 12 - Compare the properties of the volcanoes on Io with...Ch. 12 - Would you expect to find more impact craters on Io...Ch. 12 - Why is it unlikely that humans will be traveling...Ch. 12 - Why do you suppose the rings of Saturn are made of...Ch. 12 - Suppose you miraculously removed all of Saturn’s...Ch. 12 - We have a lot of good images of the large moons of...Ch. 12 - In the Star Wars movie Star Wars Episode VI:...Ch. 12 - Which would have the longer orbital period: a moon...Ch. 12 - How close to Uranus would a spacecraft have to get...Ch. 12 - Saturn’s A, B, and C Rings extend 75,000 to...Ch. 12 - Use the information in Appendix G to calculate...Ch. 12 - The average distance of Enceladus from Saturn is...
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- Why is Pluto not considered a major planet, and what other peculiarity distinguishes it from the major planets?arrow_forwardwhich of the dwarf planets is the largest?arrow_forwardWhat is the angular diameter of Saturn (in arc seconds) as seen from Earth when the two planets are farthest apart?arrow_forward
- It takes Mercury about 88 days to revolve once around the sun. It takes Jupiter about 11.86 years to revolve once around the sun. How many revolutions does Mercury make around the sun in the time it takes Jupiter to revolve once around the sun? Use the conversion factor of 1 year = 365 days. Round your answer to the nearest tenth.arrow_forwardJupiter has a mass of 1.9×10^27 kg, a radius of 7.1×10^4 km and one day lasts 9 hours and 55 minutes. How many times is the force of gravity bigger on Jupiters equator comared to Earth?arrow_forwardThe only other place in the solar system besides Earth where it rains and snows is a. Mars b. Titan c. Enceladus d. Triton e. Europa The only moon in our solar system that underwent binary capture by its planet is a. our Moon b. Io c. Europa d. Tritonarrow_forward
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- Why is it important to study satellites and planetary motion?arrow_forwardOne planet is three times farther from the Sun than another. Will the farther planet take more, less, or the same amount of time to orbit the Sun? Will the closer planet orbit slower, faster, or the same speed? How much longer will the farther planet take to orbit than the closer planet? If the closer planet is located at 10 AU, how far is the farther planet, and what are the two planet's names?arrow_forwardWhich type of planets have the most moons? Where did these moons likely originate?arrow_forward
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