Astronomy Today (9th Edition)
9th Edition
ISBN: 9780134450278
Author: Eric Chaisson, Steve McMillan
Publisher: PEARSON
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Chapter 1, Problem 8D
To determine
The meaning of the precession and the reason due to which it occurs. Also, to determine the effect of precession on the observation of stars.
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Is there any place on Earth where all the visible stars are circumpolar? If so, where? Is there any place on Earth where none of the visible stars is circumpolar? If so, where? Explain your answers.
............ describes the wobbling of Earth's axis of rotation over long periods of time. It takes roughly ........ years (don't include commas) to complete one full cycle. This means that the star Polaris will not always directly align with the North Celestial Pole.
A solar eclipse is only visible over a narrow strip on the Earth's surface. This is most closely associated with:
Select one alternative:
The ways in which our view of the sky depends on latitude.
The combination of the Earth's rotation on its axis and its movement around the sun.
The elliptical nature of the moon's orbit.
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Solar eclipses are actually visible to everyone on the daylight side of the earth.
Chapter 1 Solutions
Astronomy Today (9th Edition)
Ch. 1 - Prob. 1DCh. 1 - Prob. 2DCh. 1 - Prob. 3DCh. 1 - Prob. 4DCh. 1 - Prob. 5DCh. 1 - Prob. 6DCh. 1 - Prob. 7DCh. 1 - Prob. 8DCh. 1 - Prob. 9DCh. 1 - Prob. 10D
Ch. 1 - Prob. 11DCh. 1 - Prob. 12DCh. 1 - Prob. 13DCh. 1 - Prob. 14DCh. 1 - Prob. 15DCh. 1 - Prob. 1MCCh. 1 - Prob. 2MCCh. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Prob. 5MCCh. 1 - Prob. 6MCCh. 1 - Prob. 7MCCh. 1 - Prob. 8MCCh. 1 - Prob. 9MCCh. 1 - Prob. 10MCCh. 1 - Prob. 1PCh. 1 - Prob. 2PCh. 1 - Prob. 3PCh. 1 - Prob. 4PCh. 1 - Prob. 5PCh. 1 - Prob. 6PCh. 1 - Prob. 7PCh. 1 - Prob. 9P
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- Ursa Minor contains the pole star, Polaris, and the asterism known as the Little Dipper. From most locations in the Northern Hemisphere, all of the stars in Ursa Minor are circumpolar. Does that mean these stars are also above the horizon during the day? Explain.arrow_forwardWhat is the difference between asterism d a constellation? Give some examples.arrow_forwardWhat is a constellation as astronomers define it today? What does it mean when an astronomer says, “I saw a comet in Orion last night”?arrow_forward
- Explain why more stars are circumpolar for observers at higher latitudes.arrow_forwardWhat is the reading? What does this mean?arrow_forwardDescription: If you could see both the Sun and the other stars during the day, this is what the sky would look like looking south at noon on January 1 for an observer in the northern hemisphere. The Sun would appear in the sky next to the more distant stars in the constellation Sagittarius, (labeled constellation C). Also shown are other constellations (named and labeled A, B, D, and E) that will be visible above the horizon at this time when facing south. Aquarius -EAST B Capricornus Horizon Sagittarius SOUTH SUN D Scorpius Libra E WEST->>arrow_forward
- The two figures provided below show the motion of Stars A and B in the sky. Note that Star A is first visible above the horizon at noor In what direction is Star B moving at 3:00 am? Celestial Sphere Rotation Path of Celestial Star B Sphere Path of North Star North Star Star A 9 PM North Earth's' Horizon Equator Celestial Sphere Rotation A. west (to the left) B. east (to the right) O C. south (out of the page) D. away from the horizon (up) E. toward the horizon (down)arrow_forwardWhat is an asterism? Can you name an example?arrow_forwardExplain the origin of the magnitude designation for determining the brightness of stars. Why does it seem to go backward, with smaller numbers indicating brighter stars?arrow_forward
- Look at The Sky Around You, item 1a. In the looking south illustration, is Canis Major a circumpolar constellation? Why or why not?arrow_forwardIn countries at far northern latitudes, the winter months tend to be so cloudy that astronomical observations are nearly impossible. Why can’t good observations of the stars be made at those places during the summer months?arrow_forwardHow many degrees does the Sun move per day relative to the fixed stars? How many days does it take for the Sun to return to its original location relative to the fixed stars?arrow_forward
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