Foundations of Astronomy (MindTap Course List)
14th Edition
ISBN: 9781337399920
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Textbook Question
Chapter 2, Problem 16RQ
Where would you need to go on Earth to see the celestial equator very near your horizon?
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Given exactly 360° in a circle and 365.24 days in a year, how many degrees per day does one's view of the night sky shift? (This assumes one looks in exactly the same direction, at the meridian - the middle of the sky defined by a line across it running due north to due south, at exactly the same time each night.)
If you go out at midnight and look at constellations along the zodiac (i.e. more or less along the ecliptic plane), and then go out at midnight six months later and do the same thing, by how many degrees will the center of your view (along the ecliptic, looking to the south) have shifted during those six months?
How does the altitude of the north celestial pole relate to the observer's geographic latitude on the surface of the Earth?
Chapter 2 Solutions
Foundations of Astronomy (MindTap Course List)
Ch. 2 - Why are most of the constellations that were...Ch. 2 - Prob. 2RQCh. 2 - Which is the asterism and which is the...Ch. 2 - Prob. 4RQCh. 2 - Prob. 5RQCh. 2 - What does the word apparent mean in apparent...Ch. 2 - Prob. 7RQCh. 2 - Prob. 8RQCh. 2 - Prob. 9RQCh. 2 - Prob. 10RQ
Ch. 2 - Why doesnt a magnitude difference of one mean that...Ch. 2 - Prob. 12RQCh. 2 - In what ways is the celestial sphere a scientific...Ch. 2 - Is the precessing top shown in Figure 2-7a an...Ch. 2 - How would you define the celestial poles and...Ch. 2 - Where would you need to go on Earth to see the...Ch. 2 - Where would you go on Earth if you wanted to be...Ch. 2 - Your zenith is at your east point and your nadir...Ch. 2 - Why does the number of circumpolar constellations...Ch. 2 - Explain two reasons winter days are colder than...Ch. 2 - How does the date of the beginning of summer in...Ch. 2 - If it is the first day of spring in your...Ch. 2 - It is the first day of summer. Will the days start...Ch. 2 - How much flux from the Sun does the Northern...Ch. 2 - Why does the eccentric shape of Earths orbit make...Ch. 2 - How Do We Know? How can a scientific model be...Ch. 2 - How Do We Know? Why is astrology a pseudoscience?Ch. 2 - How Do We Know? Why must a scientific argument...Ch. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Prob. 3PCh. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Prob. 6PCh. 2 - If two stars differ by 8 magnitudes, what is their...Ch. 2 - Prob. 8PCh. 2 - Prob. 9PCh. 2 - By what factor is the full moon brighter than...Ch. 2 - What is the angular distance from the north...Ch. 2 - If you are at latitude 40 degrees north of Earths...Ch. 2 - If you are at latitude 30 degrees north of Earths...Ch. 2 - How many precession periods are in one cycle of...Ch. 2 - Arrange the following in order of increasing...Ch. 2 - Arrange the following in order of increasing...Ch. 2 - Find the Big Dipper in the star trails photograph...Ch. 2 - Look at The Sky Around You, item 1a. In the...Ch. 2 - Look at the view from Earth on March 1 in Figure...Ch. 2 - Look at Figure 2-9, shown here. If you see...
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- Is the ecliptic the same thing as the celestial equator? Explain.arrow_forwardIf you were to drive to some city south of your current location, how would the altitude of the celestial pole in the sky change?arrow_forwardDescribe a practical way to determine in which constellation the Sun is found at any time of the year.arrow_forward
- What is the angular distance from the north celestial pole to the point on the sky called the vernal equinox? To the summer solstice?arrow_forwardWhy does the number of circumpolar constellations depend on the latitude of the observer?arrow_forwardWhich has the larger angular diameter in the skythe Sun or Moonduring an annular eclipse? If you wanted to be in the umbra, where would you have to physically be located to see this annular eclipse as a total solar eclipse?arrow_forward
- On the day of the vernal equinox, the day length for all places on Earth is actually slightly longer than 12 hours. Explain why.arrow_forwardIf you are at latitude 30 degrees north of Earth’s equator, what is the angular distance from your zenith to the north celestial pole? From your nadir to the north celestial pole?arrow_forwardTonight 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?arrow_forward
- For an observer found at a latitude of 35 degrees North, what is the minimum declination for a star to be considered circumpolar?arrow_forwardIf you go on vacation down to the Florida Keys, the North Star (aka Polaris) located near the North Celestial Pole is found at an altitude of approximately 25 degrees above the horizon. Why is it found near that altitude?arrow_forwardWhat are the names of the following three well-known constellations?arrow_forward
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