Foundations of Astronomy (MindTap Course List)
14th Edition
ISBN: 9781337399920
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 22, Problem 3P
What is the angular diameter of Jupiter as seen from the surface of Callisto? (Hint: Use the small-angle formula, Eq. 3-1) (Note: Necessary data are given in Celestial Profile: Jupiter and Appendix Table A-11.)
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What is the angular diameter of Saturn (in degrees) as seen from the surface of Hyperion? (Note: Necessary data can be found https://www.webassign.net/seedsfoundations14/22-celestial-profile-saturn.pdf and in this table https://www.webassign.net/seedsfoundations14/a-table-11.pdf)( Hint: Use the small-angle formula)
_________ degrees
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.
Consider an asteroid that orbits in a relatively circular orbit with a semimajor axis a = 2 au
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.
Chapter 22 Solutions
Foundations of Astronomy (MindTap Course List)
Ch. 22 - Describe four differences between the Jovian...Ch. 22 - Why is Jupiter more oblate than Earth? Just...Ch. 22 - Which molecules and atoms are Jupiter and Saturn...Ch. 22 - What determines which cloud layers are found at...Ch. 22 - Describe a hypothesis explaining why Jupiter emits...Ch. 22 - How does beltzone circulation transport energyby...Ch. 22 - Why are belts and zones wrapped entirely around...Ch. 22 - What ingredients are needed to power a dynamo...Ch. 22 - Why are magnetic phenomena such as extensive...Ch. 22 - How do the interiors of Jupiter and Saturn differ?...
Ch. 22 - Which planet formation step did the Jovian planets...Ch. 22 - Why is Jupiters moon lo called a regular...Ch. 22 - Why is Saturns moon Phoebe called an irregular...Ch. 22 - If Jupiter had a satellite the size of our own...Ch. 22 - The density of Earths Moon is 3.3 g/cm3. Which of...Ch. 22 - Ganymede was once completely molten on the inside....Ch. 22 - Describe evidence of tectonic features seen on...Ch. 22 - Why are no craters seen on lo and few seen on...Ch. 22 - Why should you expect lo to suffer more impacts...Ch. 22 - How can you be certain that Jupiters rings do not...Ch. 22 - Why are the belts and zones in the atmosphere of...Ch. 22 - Describe the composition of Saturn from its center...Ch. 22 - If Saturn had no moons, do you think it would have...Ch. 22 - How can Titan keep an atmosphere when Titan is...Ch. 22 - What should the interior composition of Titan be...Ch. 22 - If you were able to stand on the surface of Titan...Ch. 22 - Does Titan experience volcanism today? Impact...Ch. 22 - Describe the types of geological activity observed...Ch. 22 - More Jovian moons are geologically active than...Ch. 22 - Prob. 30RQCh. 22 - If you piloted a spacecraft to visit Saturns moons...Ch. 22 - The ring systems around Jupiter and Saturn lie...Ch. 22 - Saturns rings are primordial, meaning that they...Ch. 22 - What is understood to be the cause of gaps in ring...Ch. 22 - What is understood to be the cause of ripples in...Ch. 22 - Why would you expect research in archaeology to be...Ch. 22 - What is the angular diameter of Jupiter as seen...Ch. 22 - Prob. 2PCh. 22 - What is the angular diameter of Jupiter as seen...Ch. 22 - What is the escape velocity from the surface of...Ch. 22 - Calculate the mass of Callisto using a value for...Ch. 22 - Prob. 6PCh. 22 - Calculate the radius of Jupiters Roche limit for a...Ch. 22 - How long does the eastward wind at the equator of...Ch. 22 - What is the orbital velocity and period of a ring...Ch. 22 - If you were to record the spectrum of Saturn as...Ch. 22 - Prob. 11PCh. 22 - Jupiter is about 71,000 km in radius. The...Ch. 22 - Saturn is about 60,000 km in radius, and its rings...Ch. 22 - Look at Figure 22-4b. Compare the visual and UV...Ch. 22 - Prob. 2LTLCh. 22 - Prob. 3LTLCh. 22 - The Cassini spacecraft recorded the image shown...
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- What 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_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_forwardIn 2015, researchers concluded that Enceladus's subsurface ocean is probably global, instead of just being restricted to the south polar region. What had the Cassini spacecraft found, that led them to their conclusion? a Enceladus wobbles slightly as it orbits Saturn, more so than it could if its ice shell were mostly frozen to the rocky interior. b Enceladus is absorbing so much water (which is ejected by Saturn from its atmosphere) that there must be a global ocean under its icy surface. c The number of large, lava-spewing volcanoes on Enceladus's surface is so high that they can only be the result of liquid water under the whole surface. d The magnetic field of Enceladus is so strong that it can only be explained by a global ocean of salty water under the surface.arrow_forward
- The ratio of charon to pluto's roche limit? or How close is Charon to Pluto's Roche limit? please solve accurate and exactarrow_forwardVenus can be as bright as apparent magnitude −4.7 when at a distance of about 1 AU. How many times fainter would Venus look from a distance of 7 pc? Assume Venus has the same illumination phase from your new vantage point. (Hints: Recall the inverse square law; also, review the definition of apparent visual magnitudes. Note: 1 pc = 2.1 ✕ 105 AU). What would its apparent magnitude be?arrow_forwardAt 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 three-sevenths, of the orbital period of Jupiter? (Hint: use Kepler's third law.) Compare your results with the figure.arrow_forward
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