Astronomy Today
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Eighth Edition
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Eric Chaisson
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Harvard University
Steve McMillan
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Drexel University
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,Publisher: James Smith
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Executive Editor: Nancy Whilton
Project Manager: Tema Goodwin
Marketing Manager: Will Moore
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Production and Composition: Tamarack Software, Inc.
Copyright © 2014, 2011, 2008, 2005 Pearson Education, Inc., 1301 Sansome St., San Francisco,
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ISBN 10-digit: 0-321-91008-7; ISBN 13-digit: 978-0-321-91008-0
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,Contents
Chapter 1 Charting the Heavens: The Foundations of Astronomy ............................................... 1
Chapter 2 The Copernican Revolution: The Birth of Modern Science.......................................... 18
Chapter 3 Radiation: Information from the Cosmos....................................................................... 36
Chapter 4 Spectroscopy: The Inner Workings of Atoms ................................................................ 56
Chapter 5 Telescopes: The Tools of Astronomy .............................................................................. 73
Chapter 6 The Solar System: Comparative Planetology and Formation Models ....................... 92
Chapter 7 Earth: Our Home in Space .............................................................................................. 118
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Chapter 8 The Moon and Mercury: Scorched and Battered Worlds........................................... 136
Chapter 9 Venus: Earth’s Sister Planet............................................................................................ 156
Chapter 10 Mars: A Near Miss for Life? ........................................................................................... 173
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Chapter 11 Jupiter: Giant of the Solar System ................................................................................. 191
Chapter 12 Saturn: Spectacular Rings and Mysterious Moons ..................................................... 209
Chapter 13 Uranus and Neptune: The Outer Worlds of the Solar System .................................. 228
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Chapter 14 Solar System Debris: Keys to Our Origin ..................................................................... 247
Chapter 15 Exoplanets: Planetary Systems Beyond Our Own ...................................................... 267
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Chapter 16 The Sun: Our Parent Star ................................................................................................ 280
Chapter 17 The Stars: Giants, Dwarfs, and the Main Sequence .................................................... 301
Chapter 18 The Interstellar Medium: Gas and Dust among the Stars .......................................... 321
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Chapter 19 Star Formation: A Traumatic Birth................................................................................ 339
Chapter 20 Stellar Evolution: The Life and Death of a Star ........................................................... 359
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Chapter 21 Stellar Explosions: Novae, Supernovae, and the Formation of the Elements ......... 380
Chapter 22 Neutron Stars and Black Holes: Strange States of Matter .......................................... 399
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Chapter 23 The Milky Way Galaxy: A Spiral in Space ................................................................... 420
Chapter 24 Galaxies: Building Blocks of the Universe ................................................................... 439
Chapter 25 Galaxies and Dark Matter: The Large-Scale Structure of the Cosmos ..................... 459
Chapter 26 Cosmology: The Big Bang and the Fate of the Universe ............................................ 479
Chapter 27 The Early Universe: Toward the Beginning of Time .................................................. 497
Chapter 28 Life in the Universe: Are We Alone? ............................................................................ 516
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, Chapter 1 Charting the Heavens:
The Foundations of Astronomy
1.1 True/False Questions
1) The distances to bodies in the solar system are a few light minutes to light hours.
Answer: TRUE
Diff: 2
Section Ref: 1.1
2) A light-year is a measurement of time.
Answer: FALSE
Diff: 1
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Section Ref: 1.1
3) It was Aristotle who used the scientific method to show the Earth was a sphere.
Answer: TRUE
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Diff: 2
Section Ref: 1.2
4) Constellations are close clusters of stars, all at about the same distance from the Sun.
Answer: FALSE
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Diff: 1
Section Ref: 1.3
5) From the South Pole, Polaris would appear directly overhead.
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Answer: FALSE
Diff: 1
Section Ref: 1.3
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6) Only at the equator are all the stars visible over the course of the year.
Answer: TRUE
Diff: 1
Section Ref: 1.3
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7) Over the course of a night, Polaris moves less than any other visible star in the sky.
Answer: TRUE
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Diff: 2
Section Ref: 1.3
8) There are 3,600 arc seconds in a degree.
Answer: TRUE
Diff: 2
Section Ref: More Precisely 1-1
9) At apogee, the Moon is at its farthest from Earth and thus appears smaller than normal.
Because of this it can produce only annular solar eclipses, but not total solar eclipses.
Answer: TRUE
Diff: 2
Section Ref: 1.5
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