Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 14, Problem 43Q
To determine
The semi major axis of the orbit of an object having orbital period twice as that of Neptune, and then compare the result with the outer limit of the Kuiper belt.
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Students have asked these similar questions
What is the observed angular speed of
Neptune, along the ecliptic of Earth, when it is
at opposition, in units of arc minutes / day?
Presume the orbits are circular. Earth has
orbital speeds of 30km/s and Neptune has
5.43km/s, Neptune here has orbital radius
30.1 AU. Now looking at Uranus for the same
condition, in what direction along the ecliptic
will it be traveling?
Consider the attached light curve for a transiting planet observed by the Kepler mission. If the host star is identical to the sun, what is the radius of
this planet? Give your answer in terms of the radius of Jupiter.
Brightness of Star
Residual Flux
0.99
0.98
0.97
0.006
0.002
0.000
-8-881
-0.06
-0.04
-0.02
0.00
Time (days) →
0.02
0.04
0.06
Estimate the length of period of Neptune assuming that the length of the semimajor axis of the ellipse is
a = 449.51 x 101º m.
For Earth, a = 15.0 × 1010
m.
(Use decimal notation. Give your answer to two decimal places.)
Chapter 14 Solutions
Universe
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- How was the discovery of Neptune not accidental?arrow_forwardAn exoplanetary system has two known planets. Planet X orbits in 290 days and Planet Y orbits in 145 days. Which planet is closest to its host star? If the star has the same mass as the Sun, what is the semi-major axis of the orbits for Planets X and Y?arrow_forwardWhat would be the angular diameter (in arc seconds) of a planet with diameter 8.5 x 105 km and orbital distance from it's star of 175 x 108 km as seen from a planet with. orbital distance from the same star of 70 x 107 km as seen from their closest approach?arrow_forward
- You are making a scale model to visualize the relative sizes of the planets in our solar system. The scale of the model is: 1 cm = 2000 km. The radius of Saturn is 60,000 km. At what radius will Saturn appear on your scale model?arrow_forwardAn asteroid is observed to be on a superior orbit with a synodic period of 466.6 days. What are the sidereal orbital period and semi-major axis of this asteroid? Choose the option below that most closely matches your answers. Select one: O a. Sidereal period = 1683 days and %3D semi-major = 2.7 AU O b. Sidereal period = 1683 days and semi-major axis = 4.8 AU O c. Sidereal period = 865 days and semi- major axis = 1.8 AU O d. Sidereal period = 426 day and semi- %3D major axis = 2.7 AU O e. Sidereal period = 1727 days and е. semi-major axis = 0.8 AUarrow_forwardI would like you to compare the size of some of the largest moons of the solar system to their host planets. Using diameters of 12,700 km, and 140,000 km, 116,000 km for Earth, Jupiter, and Saturn respectively, please provide the ratios of the following moons to their host planets (you can use Table 12.1 from the book to get the diameters of the moons): Luna (Earth's moon), Io, Callisto, Ganymede, Europa, and Titan. After collecting those ratios, please tell me one thing that you notice that stands out about those results.arrow_forward
- Calculate the period T of a dwarf planet whose orbit has a semimajor axis of 400 AU.arrow_forwardSaturn’s A, B, and C Rings extend 75,000 to 137,000 km from the center of the planet. Use Kepler’s third law to calculate the difference between how long a particle at the inner edge and a particle at the outer edge of the three-ring system would take to revolve about the planet. Enter the value you get from the ratio of the period of the inner edge to the outer edge of the rings.arrow_forwardThe International Space Station is about 90 meters across and about 380 kilometers away. One night it appears to be the same angular size as Jupiter. Jupiter is 143,000 km in size. Use S = r x a to figure out how far away Jupiter is in AU. Note 1 AU = 1.5 x 108 kmarrow_forward
- A certain binary system consists of two stars that have equal masses and revolve in circular orbits around a fixed point half-way between them. If the orbital velocity of each star is v=186 km/s and the orbital period of each is 11.3 days, calculate the mass M of each star. Give your answer in units of the solar mass, 1.99×1030 kg (e.g. if each planet's mass is 3.98×1030 kg, you would answer "2.00").arrow_forward(a) What is the difference between the forces due to Neptune on a 1.0 kg mass located at the near side of Triton and at the far side of Triton? Triton has a mean radius of 1,353 km and a mean orbital radius about Neptune of 354,800 km. (Enter the magnitude in newtons.) N (b) Compare this difference to the difference for Earth due to the Moon, 0.22 x 10- N. (Tidal forces are the cause of volcanic activity on some moons.) AFTriton due to Neptune AF Earth due to Moonarrow_forwardExplain the tidal hypothesis.arrow_forward
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