By Michael A. Seeds, Dana Backman
With their best-selling astronomy textbook, ASTRONOMY: THE sun process AND past , authors Mike Seeds and Dana Backman assist you comprehend your home within the universe-not simply your place in area, yet your function within the unfolding historical past of the actual universe. to accomplish this objective, the authors concentrate on critical questions: "What Are We?," which highlights your house as a planet dweller in an evolving universe, guiding you to raised comprehend the place we got here from and the way we shaped, and "How can we Know?," which supplies insights into how the method of technology can train us extra approximately what we're. every one new reproduction of the textual content comprises entry to digital Astronomy Labs, an internet, interactive means so you might discover astronomy out of your personal computing device.
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Extra info for Astronomy: The Solar System and Beyond
10. If Earth did not rotate, could you deﬁne the celestial poles and celestial equator? 11. Where would you go on Earth if you wanted to be able to see both the north celestial pole and the south celestial pole at the same time? 12. Where would you go on Earth to place a celestial pole at your zenith? 13. Explain how to make a simple astronomical observation that would determine your latitude. 14. Why does the number of circumpolar constellations depend on the latitude of the observer? 15. How could you detect Earth’s precession by examining star charts from ancient Egypt?
On this scale, our Favorite Stars. As you study astronomy you will discover their Favorite Star Sirius, the brightest star in the sky, has a magnitude peculiar personalities and enjoy finding them in the evening sky. 47. Modern astronomers have had to extend the faint end You can use the star charts at the end of this book to help of the magnitude scale as well. The faintest stars you can see with locate these Favorite Stars. You can see Polaris year round, but your unaided eyes are about sixth magnitude, but if you use a Sirius, Betelgeuse, Rigel, and Aldebaran are in the winter sky.
2 times more intense than light from Polaris. What is the magnitude difference? 2). 4 magnitudes. The celestial sphere is an example of a scientific model, a common feature of scientific thought (■ How Do We Know? 2-1). Notice that a scientific model does not have to be true to be useful. You will encounter many scientific models in the chapters that follow, and you will discover that some of the most useful models are highly simplified descriptions of the true facts. This is a good time to eliminate a couple of Common Misconceptions.
Astronomy: The Solar System and Beyond by Michael A. Seeds, Dana Backman