The Solar System

CHAPTER 19 | THE ORIGIN OF THE SOLAR SYSTEM 413 in detail in Chapter 25. But for now you can consider how the sun blew away the ...

414 PART 4^ |^ THE SOLAR SYSTEM 19-4 Planets Orbiting Other Stars Are there other planetary systems? Th e evidence says yes. Do ...

CHAPTER 19 | THE ORIGIN OF THE SOLAR SYSTEM 415 comets, and Kuiper belt objects, and astronomers have evidence that the solar sy ...

416 PART 4^ |^ THE SOLAR SYSTEM Neptune’s Visual orbit Visual wavelength imageVisual wavelength image Star HD 107146 hidden behi ...

CHAPTER 19 | THE ORIGIN OF THE SOLAR SYSTEM 417 dog on a leash; the dog runs around pulling on the leash, and even if it were an ...

418 PART 4^ |^ THE SOLAR SYSTEM amount of infrared radiation from each system varies. When the planets pass behind their parent ...

CHAPTER 19 | THE ORIGIN OF THE SOLAR SYSTEM 419 planets are harder to detect. Low-mass planets don’t tug on their stars very muc ...

420 PART 4^ |^ THE SOLAR SYSTEM ■ Figure 19-1 7 (a) Visible-wavelength images of 3 planets at apparent distances of 25, 40, and ...

Summary ▶ Descartes proposed that the solar system formed from a contracting vortex of matter—an evolutionary hypothesis (p. 398 ...

422 PART 4^ | THE SOLAR SYSTEM Why do astronomers think the solar system formed about 4.6 billion years ago? If you visited ano ...

CHAPTER 19 | THE ORIGIN OF THE SOLAR SYSTEM 423 Learning to Look What do you see in the image at the right that indicates this ...

424 Guidepost In the preceding chapter, you learned how our solar system formed as a by-product of the formation of the sun. You ...

CHAPTER 20 | EARTH: THE STANDARD OF COMPARATIVE PLANETOLOGY 425 A Travel Guide to the Terrestrial Planets If you visit the city ...

426 PART 4^ |^ THE SOLAR SYSTEM Another important way you can study a planet is by follow- ing the energy fl ow. In the precedin ...

CHAPTER 20 | EARTH: THE STANDARD OF COMPARATIVE PLANETOLOGY 427 and fl ooded the deeper impact basins. Later, as the environment ...

428 PART 4^ |^ THE SOLAR SYSTEM can emphasize some of those stages over others and produce surprisingly diff erent worlds. Excep ...

CHAPTER 20 | EARTH: THE STANDARD OF COMPARATIVE PLANETOLOGY 429 The Solid Earth Although you might think of earth as solid rock, ...

430 PART 4^ |^ THE SOLAR SYSTEM Pa ndS waves An earthquake sends seismic waves through Earth’s interior. In the S-wave shadow, o ...

CHAPTER 20 | EARTH: THE STANDARD OF COMPARATIVE PLANETOLOGY 431 which in turn raises the melting point so high that the material ...

432 PART 4^ |^ THE SOLAR SYSTEM Earth’s magnetic fi eld produces the dramatic and beautiful auroras, glowing rays and curtains o ...