# Astronomy: A Self-Teaching Guide, Eighth Edition (Wiley Self Teaching Guides)

Language: English

Pages: 388

ISBN: 1620459906

Format: PDF / Kindle (mobi) / ePub

For a generation, Astronomy: A Self-Teaching Guide has introduced hundreds of thousands of readers worldwide to the night sky. Now this classic beginner's guide has been completely revised to bring it up to date with the latest discoveries. Updated with the latest, most accurate information, new online resources, and more than 100 new graphics and photos, this Eighth Edition features:

·Website addresses throughout for the best color images and astronomy resources online

·Technical ideas made simple without mathematics

·A beautiful updated full-color, glossy insert with spectacular images

·An interactive format with learning goals, reviews, self-tests, and answers for fast learning

Extreme Cosmos: A Guided Tour of the Fastest, Brightest, Hottest, Heaviest, Oldest, and Most Amazing Aspects of Our Universe

E.T. Talk: How Will We Communicate with Intelligent Life on Other Worlds? (Astronomers' Universe)

The Big Questions: The Universe

The Fabric of the Cosmos: Space, Time, and the Texture of Reality

Light. ★ 33 34 ★ ASTRONOMY 2.3 THE ELECTROMAGNETIC SPECTRUM Visible light is only one small part of all the electromagnetic radiation in space. Energy is also transmitted in the form of gamma rays, X-rays, ultraviolet radiation, infrared radiation, and radio waves. Figure 2.4. The electromagnetic spectrum includes all electromagnetic radiation from shortest, highest-frequency gamma rays to longest, lowest-frequency radio waves. LIGHT AND TELESCOPES Because we make such different uses.

0.1 second of arc (0Љ.1) per year. At that rate you won’t notice any change in the appearance of your favorite constellation during your lifetime. But if you could return to observe the sky 50,000 years from now, it would look very different (Figure 3.12). Figure 3.11. Doppler shift. A sky object’s spectral lines for any given element are compared with reference lines. Redshifted spectral lines indicate that the object is moving away from us. THE STARS Figure 3.12. Measured proper motion of.

Or 8.3 minutes Figure 4.2. Projected image of the Sun focused on a screen behind the eyepiece of a small reflecting telescope. A way to avoid looking at the Sun while pointing a telescope is to use the shadow of the telescope cast on the screen as a guide. THE SUN Figure 4.3. Projected image of the Sun focused on a screen behind the eyepiece of a small refracting telescope. A way to avoid looking at the Sun while pointing a telescope is to use the shadow of the telescope cast on the screen as.

System and provides the gravitational force that keeps the planets circling it. Its surface gravity is practically 28 times Earth’s. ★ 99 100 ★ ASTRONOMY Figure 4.4. Solar nebula theory. (a) A rotating nebula condensed to our Sun surrounded by a contracting disk where (b) the planetary system was born. More than 70 chemical elements have been identified in the Sun’s spectrum. The Sun’s outer layers likely have the same chemical composition as the Sun had at birth: about 71 percent.

____________________________________________________________________ ____________________________________________________________________ 7. List seven stages in the life cycle of a star like our Sun in order from birth to death. (1) _______________________________ (2) ____________________________ ★ 143 144 ★ ASTRONOMY (3) _______________________________ (4) ____________________________ (5) ________________________________ (6) _____________________________ (7).