Loose Leaf For Explorations: Introduction To Astronomy
9th Edition
ISBN: 9781260432145
Author: Thomas T Arny, Stephen E Schneider Professor
Publisher: McGraw-Hill Education
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Chapter 10, Problem 9TQ
To determine
The atmospheric circulation bands for Neptune is visible and not for Uranus.
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Why is the atmospheric activity of Uranus less than that of Saturn and Neptune?
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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Compare Titan to Rhea. Estimate the strength of surface gravity on Titan compared to the gravity on Titan. How does this affect the possibility of an atmosphere on each?
Use g=GM/R2
Titan Radius: 2,575 km, Mass: 2.31 x 1021 kg
Rhea Radius: 764 km, Mass: 1.35 x 1023 kg
Chapter 10 Solutions
Loose Leaf For Explorations: Introduction To Astronomy
Ch. 10 - Prob. 1QFRCh. 10 - What does Jupiter look like?Ch. 10 - How do astronomers know what lies inside the outer...Ch. 10 - What are the major gaseous substances that make up...Ch. 10 - What is the interior structure of Jupiter and...Ch. 10 - Do Jupiter and Saturn have solid surfaces?Ch. 10 - Prob. 7QFRCh. 10 - Prob. 8QFRCh. 10 - What sort of activity has been seen on Io? What is...Ch. 10 - What are the rings of Saturn made of? How do...
Ch. 10 - Prob. 11QFRCh. 10 - Prob. 12QFRCh. 10 - Prob. 13QFRCh. 10 - What is unusual about Uranuss rotation axis? What...Ch. 10 - Prob. 15QFRCh. 10 - Why are Uranus and Neptune so blue?Ch. 10 - Why are the outer planets so large?Ch. 10 - Prob. 18QFRCh. 10 - Prob. 1TQCh. 10 - Prob. 2TQCh. 10 - Ganymede and Callisto orbiting Jupiter and Tethys...Ch. 10 - Approximate the Roche limit as 2.44 times a...Ch. 10 - Prob. 5TQCh. 10 - (10.3) Is Uranuss sky blue for the same reason our...Ch. 10 - Prob. 7TQCh. 10 - Prob. 8TQCh. 10 - Prob. 9TQCh. 10 - Prob. 10TQCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - (10.1) The low average densities of Jupiter and...Ch. 10 - Prob. 2TYCh. 10 - Prob. 3TYCh. 10 - Prob. 4TYCh. 10 - Prob. 5TYCh. 10 - Prob. 6TYCh. 10 - Prob. 7TY
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- How were the rotation periods of Uranus and Neptune measured?arrow_forwardWhat is the maximum angular diameter of Uranus as seen from Earth? Of Neptune? (Hint: Use the small-angle formula, Eq. 3-1.) (Note: Necessary data are given in their Celestial Profiles.)arrow_forwardIf Uranus and Neptune had no satellites at all, would you expect them to have rings? Why or why not?arrow_forward
- The image to the left shows how Uranus would look to the unaided human eye, whereas the right image shows how Uranus would look through a red filter, which enhances the methane clouds. What do the visible atmospheric features tell you about circulation on Uranus?arrow_forwardWhat should the interior composition of Titan be if its density is 1.9 g/cm3? How do you know?arrow_forwardDescribe four differences between the two ice giants, Uranus and Neptune, and the two gas giants, Jupiter and Saturn. (Hint: Review Celestial Profiles for all of these planets.)arrow_forward
- Calculate the Roche radius (in km) for Uranus. The diameter of Uranus is 5.11 x 10* km. km Are all of Uranus' rings inside the Roche limit? The rings extend to 51,000 km from the center of Uranus. O Yes O Noarrow_forwardWhat is the orbital velocity of Miranda around Uranus? (Hint: Use the formula for circular velocity, Eq. 5-1a. The formula requires input quantities in kg and m.) (Note: Necessary data are given in Celestial Profile: Uranus and Appendix Table A-11.)arrow_forwardWhy might the surface brightness of ring particles and small moons orbiting Uranus and Neptune depend on whether those planets have extensive, strong magnetic fields?arrow_forward
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