Astronomy
1st Edition
ISBN: 9781938168284
Author: Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher: OpenStax
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Textbook Question
Chapter 12, Problem 25E
Use the information in Appendix G to calculate what you would weigh on Titan, Io, and Uranus’ moon Miranda.
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A synchronous satellite, which always remains above the same point on a planet's equator, is put in circular orbit around Uranus so that scientists can study a surface feature. Uranus rotates once every 17.2 h. Use the data of this table to find the altitude of the satellite. (in km)
What is the density of Jupiter’s moon Europa (see Appendix G for data on moons)?
Tutorial
Based on the orbital properties of Uranus, how far across the sky in arc seconds does it travel in one Earth
day? The average orbital radius is 2.88 x 109 km and the period is 84.0 years. (Assume Uranus and the Earth
are at the closest point to one another in their orbits.)
How many full Moons does this distance cover if the Moon has an angular diameter of 0.5 degrees?
Part 1 of 4
We first need to determine how fast the planet is moving across the sky. If we know the period and the
distance between the Sun and the planet we can calculate the velocity using:
2ar
which will tell us how many kilometers the planet travels in a day if we convert the period into days.
days
= (P
years'
|days/year
Pdays
days
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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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- What is the difference in the orbital velocities of the two shepherd satellites of Uranus, Cordelia and Ophelia, which have orbital radii of 49,800 km and 53,800 km, respectively? (Hint: Use the formula for circular velocity, Eq. 5-1a. The formula requires input quantities in kg and m.)arrow_forwardWhat are hypotheses for the origin of the rings of Uranus and Neptune? Provide evidence to support these hypotheses.arrow_forwardTitan has a radius of 2700.0 km and a mass of 1.4x1023kg. What is the escape velocity in km/s from Titans exosphere, which begins at about 1400 km above the surface? The gravitational constant is G= 6.67x10-11m3kg-1s-2arrow_forward
- Calculate the escape velocity of Titan.arrow_forwardCalculate the gravitational field strength on a planet with a diameter of 12738 km if the escape velocity is 11 km s-1. Give your answer in SI units.arrow_forwardThe mass of the planet is approximately 74.8 times the mass of Jupiter. Calculate the average density of the planet. Give your answer in grams per cubic centimeter.arrow_forward
- Prominent on photos of Jupiter, is a large, reddish oval feature, named the Great Red Spot. How could this major feature be utilized to determine the rotation period of the planet?arrow_forwardWhat is the escape velocity is km/s from Jupiters exosphere, which begins about 993 km above the surface ? Assume the Gravitational constant is G= 6.67 x10-11m3 kg-1s-2, and that's Jupiter has a mass of 1.8999999999999998e+27kg and a radius of 68.0 x103kmarrow_forwardThe Great Red Spot is a massive, oval, ruddy spot that is prominent in photographs of Jupiter. How may this main characteristic be applied to predict the planet's rotation period?arrow_forward
- Given the following information on Jupiter's Galilean moons, (a) determine the average mass of Jupiter and (b) compare to the known value of 1.898 × 1027 kg. Jupiter's diameter is 1.40 × 105 km. Assume the diameter of Jupiter is 139,820 km. Period in Orbital Diameter in Name Days Jupiter Diameters lo 1.77 6.03 Europa 3.55 9.60 Ganymede 7.16 15.3 Callisto 16.7 26.9arrow_forwardPart 2 of 3 The Roche limit for Jupiter is given by: R = 2.44r R = km Submit Skip (you cannot come back)arrow_forwardGiven the masses and radil of Uranus and Neptune, calculate the gravity at the "surface" of each of the planets.arrow_forward
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