Foundations of Astronomy, Enhanced
13th Edition
ISBN: 9781305980686
Author: Michael A. Seeds; Dana Backman
Publisher: Cengage Learning US
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Chapter 24, Problem 3RQ
To determine
Any region in the Uranus experiences sunshine every day.
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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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Belt-zone circulation is not easily visible on Uranus because
a.
no clouds form in the pure hydrogen atmosphere.
b.
there is no differential rotation.
c.
clouds form very deep in the atmosphere.
d.
that atmosphere is stirred by cyclonic circulation.
e.
there is no liquid metallic core.
The rings of Uranus were discovered
a.
during an occultation (an eclipse) of a star.
b.
during an eclipse of one of the moons by the rings.
c.
during an eclipse of Uranus by the rings.
d.
as Uranus and the rings passed behind Jupiter.
e.
by the Voyager 1 spacecraft.
Chapter 24 Solutions
Foundations of Astronomy, Enhanced
Ch. 24 - Why didnt ancient astronomers know of Uranuss...Ch. 24 - Describe the location of the equinoxes and...Ch. 24 - Prob. 3RQCh. 24 - Prob. 4RQCh. 24 - Why is belt-zone circulation difficult to detect...Ch. 24 - Prob. 6RQCh. 24 - Prob. 7RQCh. 24 - Describe four characteristics in common among all...Ch. 24 - Describe four differences between the two ice...Ch. 24 - Prob. 10RQ
Ch. 24 - What are hypotheses for the origin of the rings of...Ch. 24 - How do the characteristics of Uranuss and Neptunes...Ch. 24 - If Uranus and Neptune had no satellites at all,...Ch. 24 - Why might the surface brightness of ring particles...Ch. 24 - Both Uranus and Neptune have a blue-green tint...Ch. 24 - How are the atmospheres of Earth and Triton...Ch. 24 - Prob. 17RQCh. 24 - When Neptune was discovered, how was its position...Ch. 24 - How can small worlds like Triton and Pluto have...Ch. 24 - Why do you suspect that Triton had a geologically...Ch. 24 - If you visited the surface of Pluto and found...Ch. 24 - What evidence can you give that Pluto and Charon...Ch. 24 - Why was Pluto reclassified as a dwarf planet?Ch. 24 - How was the discovery of Neptune not accidental?Ch. 24 - Prob. 1DQCh. 24 - Suggest a single phenomenon that could explain the...Ch. 24 - Prob. 3DQCh. 24 - Prob. 4DQCh. 24 - Prob. 5DQCh. 24 - What is the maximum angular diameter of Uranus as...Ch. 24 - One way to recognize a distant planet is by...Ch. 24 - What is the orbital velocity of Miranda around...Ch. 24 - Calculate Uranuss Roche radius. Are all of Uranuss...Ch. 24 - Prob. 5PCh. 24 - What is the escape velocity from the surface of an...Ch. 24 - What is the difference in the orbital velocities...Ch. 24 - Repeat Problem 2 for Pluto. In other words,...Ch. 24 - Given the size of Tritons orbit (r = 355,000 km)...Ch. 24 - Prob. 1LTLCh. 24 - Prob. 2LTLCh. 24 - Compare the interior cutaway sketches of the four...Ch. 24 - Prob. 4LTLCh. 24 - Review Figure 21-11. Which molecules can Triton...Ch. 24 - The image to the left shows how Uranus would look...
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- Describe the location of the equinoxes and solstices in the Uranian sky. What are the seasons like on Uranus?arrow_forwardPart 2 of 3 The Roche limit for Jupiter is given by: R = 2.44r R = km Submit Skip (you cannot come back)arrow_forwardWhy are Uranus and Neptune respectively green-blue and blue?arrow_forward
- Pure, solid water ice has an albedo A≈0.35. What is the minimum distance from the Sun at which a rapidly rotating ice cube would remain frozen? Between which two planets does this distance lie?arrow_forwardUse the information in Appendix G to calculate what you would weigh on Titan, Io, and Uranus’ moon Miranda.arrow_forwardWhy didnt ancient astronomers know of Uranuss existence?arrow_forward
- Which Jovian planet revolves on its side and has retrograde rotation? (16.5) (a) Jupiter (b) Neptune (c) Uranus (d) Saturnarrow_forwardDescribe and compare the rings of Saturn and Uranus, including their possible origins.arrow_forwardThe Great Red Patch is the term given to the enormous red area on Jupiter's surface. Are there any predictions on how long it will take the planet to complete its rotation?arrow_forward
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