The Essential Cosmic Perspective (8th Edition)
8th Edition
ISBN: 9780134552118
Author: Bennett
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 45EAP
Smaller Earth. Suppose Earth were smaller. Would solar eclipses be any different? What about lunar eclipses? Explain.
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What is an annular eclipse? Explain why annular eclipses occur.
Explain in detail how the relative motions of Earth, the Sun, and the Moon lead to the different types of eclipses.
Explain why eclipses do not occur every month.
Chapter 2 Solutions
The Essential Cosmic Perspective (8th Edition)
Ch. 2 - Prob. 1VSCCh. 2 - Which of the four labeled points represents the...Ch. 2 - Which of the four labeled points represents the...Ch. 2 - The diagram exaggerates the sizes of Earth and the...Ch. 2 - Given that Earths actual distance from the Sun...Ch. 2 - As viewed from Earth, in which zodiac...Ch. 2 - If the date is April 21, what zodiac constellation...Ch. 2 - If the date is April 21, what zodiac constellation...Ch. 2 - Prob. 1EAPCh. 2 - Suppose you were making a model of the celestial...
Ch. 2 - On a clear, dark night, the sky may appear to be...Ch. 2 - Why does the local sky look like a dome? Define...Ch. 2 - Prob. 5EAPCh. 2 - What are circumpolar stars? Are more stars...Ch. 2 - What are latitude and longitude? Does the local...Ch. 2 - What is the zodiac, and why do we see different...Ch. 2 - Suppose Earth’s axis had no tilt. Would we still...Ch. 2 - Briefly describe key facts about the solstices and...Ch. 2 - What is precession? How does it affect our view of...Ch. 2 - Briefly describe the Moons cycle of phases. Can...Ch. 2 - Why do we always see the same face of the Moon?Ch. 2 - Why don’t we see an eclipse at every new and full...Ch. 2 - What do we mean by the apparent retrograde motion...Ch. 2 - Prob. 16EAPCh. 2 - Decide whether the statement makes sense (or is...Ch. 2 - Prob. 18EAPCh. 2 - Decide whether the statement makes sense (or is...Ch. 2 - Prob. 20EAPCh. 2 - Decide whether the statement makes sense (or is...Ch. 2 - Decide whether the statement makes sense (or is...Ch. 2 - Prob. 23EAPCh. 2 - Decide whether the statement makes sense (or is...Ch. 2 - Decide whether the statement makes sense (or is...Ch. 2 - Decide whether the statement makes sense (or is...Ch. 2 - Two stars that are in the same constellation (a)...Ch. 2 - The north celestial pole is 35° above your...Ch. 2 - Beijing and Philadelphia have about the same...Ch. 2 - In winter, Earth’s axis points toward the star...Ch. 2 - When it is summer in Australia, the season in the...Ch. 2 - If the Sun rises precisely due east. (a) you must...Ch. 2 - A week after full moon, the Moon’s phase is (a)...Ch. 2 - The fact that we always see the same face of the...Ch. 2 - If there is going to be a total lunar eclipse...Ch. 2 - When we see Saturn going through a period of...Ch. 2 - Prob. 37EAPCh. 2 - Prob. 38EAPCh. 2 - 39. Lunar Phases and Time of Day. Roles: Scribe...Ch. 2 - Prob. 40EAPCh. 2 - Your View of the Sky. a. What are your latitude...Ch. 2 - View from the Moon. Suppose you lived on the Moon,...Ch. 2 - View from the Sun. Suppose you lived on the Sun...Ch. 2 - Farther Moon. Suppose the distance to the Moon...Ch. 2 - Smaller Earth. Suppose Earth were smaller. Would...Ch. 2 - Prob. 46EAPCh. 2 - Prob. 47EAPCh. 2 - Find the Sun’s Diameter. The Sun has an angular...Ch. 2 - Prob. 49EAPCh. 2 - Prob. 50EAPCh. 2 - Prob. 51EAPCh. 2 - Flat Earth Society. Believe it or not, there is an...Ch. 2 - Prob. 53EAPCh. 2 - Prob. 54EAPCh. 2 - Prob. 55EAP
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- A total eclipse of the Sun was visible from Canada on July 10, 1972. When did an eclipse occur next with the same EarthMoonSun geometry? From what part of Earth was it total?arrow_forwardOne way to recognize a distant planet is by its motion along its orbit. If Uranus circles the Sun in 84 years, how many arc seconds will it move in 24 hours? (For the purposes of this problem, ignore the motion of Earth.)arrow_forwardAccording to the solar nebula theory, why is the Earth’s orbit nearly in the plane of the Sun’s equator?arrow_forward
- Measure the polar and equatorial diameters of Saturn in the photograph in Celestial Profile 8 and calculate the planet’s oblateness using the definition given in this chapter.arrow_forwardThe photo in Figure UN 3-5 shows the annular eclipse of May 30, 1984. How is it different from the annular eclipse shown in Figure 3-11? Why do you suppose it is different?arrow_forwardEclipses do not happen on a near-monthly basis because the Moon's orbit is tilted relative to the . As a result, a total lunar eclipse can only happen when the Moon is in its or phase as it crosses through the Earth's .arrow_forward
- 1. using Newton’s Law of Universal Gravitation and some kinematics calculation we can calculate the mass of the planet. For this, use this equation in the image: Given: - vmax = 83 m/s - Pstar = 3.5 days - Mstar = 1.148 Msun, where Msun = 1.98847×1030 kg. This calculation is not shown.arrow_forwardExplain in detail why and how we see the Moon go through phases. What one phase of the Moon could not happen if the phases were actually caused by the Earth’s shadow?arrow_forwardWhat is declination? Discuss the degree of declination of the Moon and Sun relative to Earth’s equator. What are the effects of declination of the Moon and Sun on the tides?arrow_forward
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