Stars and Galaxies
9th Edition
ISBN: 9781305120785
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 3, Problem 3LL
To determine
What percentage of the near side of the Moon is illuminated at the third-quarter phase and what percentage is in the dark?
What percentage of the new phase of the Moon is illuminated?
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The timing of Moonrise is later every day. Let’s understand why: a) Moonrise occurs when you, as you sit on the rotating Earth, turn to the point where you can just see the Moon appear over the horizon. Draw a picture to illustrate what this would look like. Draw the Earth, Moon, and you standing on the Earth to indicate this scenario. (You’ve seen my artistic skills in class, I’m not asking you to do anything better than that. Just label/make clear what is shown). Take this as Day 1.In 24 hours, you would return back to that exact point on the Earth. However, the Moon will also have moved forward in its orbit (it orbits the Earth in the same direction that the Earth is spinning). How far along in its orbit does the Moon move? That is, assume the Moon is orbiting in a circular orbit; in going from Day 1 to Day 2,
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(c) Does a solar eclipse occur during a full moon, a new moon, or a quarter moon?
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Tonight you see a waning crescent in the night sky. A few (n) days later, the night is once again clear and you see a waning crescent. How many degrees did the Moon advance in its orbit during this time frame?
Chapter 3 Solutions
Stars and Galaxies
Ch. 3 - Prob. 1RQCh. 3 - Prob. 2RQCh. 3 - Prob. 3RQCh. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - Prob. 6RQCh. 3 - Prob. 7RQCh. 3 - Prob. 8RQCh. 3 - Prob. 9RQCh. 3 - Prob. 10RQ
Ch. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Prob. 13RQCh. 3 - Why do solar eclipses happen only at new moon? Why...Ch. 3 - Prob. 15RQCh. 3 - Prob. 16RQCh. 3 - What is the angular diameter of the Moon in the...Ch. 3 - Why cant the Moon be eclipsed when it is halfway...Ch. 3 - Prob. 19RQCh. 3 - Prob. 20RQCh. 3 - Prob. 21RQCh. 3 - Prob. 22RQCh. 3 - Pretend the Moons orbit around Earth is a perfect...Ch. 3 - Prob. 2PCh. 3 - Prob. 3PCh. 3 - Prob. 4PCh. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7PCh. 3 - Prob. 8PCh. 3 - Prob. 9PCh. 3 - Prob. 10PCh. 3 - Prob. 11PCh. 3 - Examine the list of upcoming lunar eclipses in...Ch. 3 - Prob. 13PCh. 3 - Prob. 14PCh. 3 - Prob. 15PCh. 3 - When will the eclipse described in Problem 15 next...Ch. 3 - Prob. 17PCh. 3 - Prob. 18PCh. 3 - Prob. 1LLCh. 3 - Prob. 2LLCh. 3 - Prob. 3LLCh. 3 - Prob. 4LLCh. 3 - Prob. 5LLCh. 3 - Prob. 6LLCh. 3 - Prob. 7LLCh. 3 - Prob. 9LLCh. 3 - Prob. 10LLCh. 3 - Prob. 11LLCh. 3 - Prob. 12LL
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- What fraction of the Moon’s visible face is illuminated during first quarter phase? Why is this phase called first quarter?arrow_forwardThe new moon is the first phase of the moon. During the day, a new moon is between the sun and the Earth. It's daytime, so we usually can't see it. Then, at night, the moon is on the other side of the Earth. Because the moon is not lighting up the sky, this is the best time to see stars and constellations. New moon Which of the following best describes the relationship between the new moon phase and constellations? During the new moon phase, constellations take on different shapes due to a lack of moonlight. During the new moon phase, constellations are on the same side of the earth as the sun. huring the new moon phase, constellations are easier to see due to a lack of moonlight. During the new moon phase, constellations are easier to see due to increased sunlight.arrow_forwardThe angle of the lit portion of the moon relative to the horizon changes. For example, sometimes the crescent moon looks like a crooked smile; other times it looks like a hat cocked at an angle. The lit portion of the moon doesn't really rotate, so why does it look like it does? What is REALLY happening?arrow_forward
- Explain 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_forwardThe illuminated side of the Moon as seen from Earth is growing smaller. More than half of the visible moon is illuminated. What phase is it? Waning gibbous Waxing gibbous O Waxing crescent O First Quarter Waning crescent O Third Quarterarrow_forwardPaul Doherty, also in the chapter-opening photos, displays images of an annular eclipse. Note that the images are full circular outlines. At this special time, is the average distance of the Moon from Earth closer, farther, or its usual distance?arrow_forward
- What is the phase of the Moon during a total solar eclipse? During a total lunar eclipse?arrow_forwardHow many degrees does the Moon move per day relative to the fixed stars? How many days does it take for the Moon to return to its original location relative to the fixed stars?arrow_forwardConsider a calendar based entirely on the day and the month (the Moon’s period from full phase to full phase). How many days are there in a month? Can you figure out a scheme analogous to leap year to make this calendar work?arrow_forward
- When will the eclipse seasons occur during the current year? How many total of all types will occur? Which type of eclipse(s) will occur?arrow_forwardConsider a person in the United States who sees the first-quarter phase of the Moon. (a) Which side of the Moon is illuminated, east or west? (b) What phase does an observer in Australia see at the same time, and which side is bright?arrow_forwardThe secret recipe to the ever-popular veggie burgers in the college cafeteria is hidden in a drawer in the director’s office. Two students decide to break in to get their hands on it, but they want to do it a few hours before dawn on a night when there is no Moon, so they are less likely to be caught. What phases of the Moon would suit their plans?arrow_forward
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