21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 12, Problem 7QP
To determine
The reason for the Kuiper Belt Objects (KBOs) not displaying the comae and tails.
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1. Suppose you have an Oort cloud comet on an orbit with pericenter distance 10,000 AU, and apocenter distance 20,000 AU.
a. What are the semi-major axis and eccentricity of the orbit?
b. What are the specific energy (energy per unit mass), and specific angular momentum (angular momentum per unit mass) of the comet?
c. How fast is the comet moving at apocenter (relative to the Sun)?
The short-period comets do NOT have randomly oriented orbits because
a.
they are affected by the sun’s gravity.
b.
they are affected by the solar wind.
c.
they formed in the Kuiper belt, a belt-shaped region in the plane of the solar system.
d.
their orbits are altered by the drag of their tails in the solar wind.
e.
they all were originally objects ejected from the asteroid belt.
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 12 Solutions
21st Century Astronomy
Ch. 12.1 - Prob. 12.1CYUCh. 12.2 - Prob. 12.2CYUCh. 12.3 - Prob. 12.3ACYUCh. 12.3 - Prob. 12.3BCYUCh. 12.4 - Prob. 12.4CYUCh. 12.5 - Prob. 12.5CYUCh. 12 - Prob. 1QPCh. 12 - Prob. 2QPCh. 12 - Prob. 3QPCh. 12 - Prob. 4QP
Ch. 12 - Prob. 5QPCh. 12 - Prob. 6QPCh. 12 - Prob. 7QPCh. 12 - Prob. 8QPCh. 12 - Prob. 9QPCh. 12 - Prob. 10QPCh. 12 - Prob. 11QPCh. 12 - Prob. 12QPCh. 12 - Prob. 13QPCh. 12 - Prob. 14QPCh. 12 - Prob. 15QPCh. 12 - Prob. 16QPCh. 12 - Prob. 17QPCh. 12 - Prob. 18QPCh. 12 - Prob. 19QPCh. 12 - Prob. 20QPCh. 12 - Prob. 22QPCh. 12 - Prob. 23QPCh. 12 - Prob. 24QPCh. 12 - Prob. 25QPCh. 12 - Prob. 26QPCh. 12 - Prob. 27QPCh. 12 - Prob. 28QPCh. 12 - Prob. 29QPCh. 12 - Prob. 30QPCh. 12 - Prob. 31QPCh. 12 - Prob. 32QPCh. 12 - Prob. 33QPCh. 12 - Prob. 34QPCh. 12 - Prob. 35QPCh. 12 - Prob. 36QPCh. 12 - Prob. 37QPCh. 12 - Prob. 38QPCh. 12 - Prob. 39QPCh. 12 - Prob. 40QPCh. 12 - Prob. 41QPCh. 12 - Prob. 42QPCh. 12 - Prob. 43QPCh. 12 - Prob. 44QP
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