Essential Cosmic Perspective
9th Edition
ISBN: 9780135795033
Author: Bennett
Publisher: PEARSON
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Chapter 2, Problem 7EAP
What are latitude and longitude? Does the local sky vary with latitude? Does it vary with longitude? Explain.
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You are lost at Sea – congratulations! Notice, however, that the Sun rises to an altitude of 40° in the South at noon. For some reason your watch is set to UT and reads 18:00. Oh, and it’s the fall equinox… convenient!
Your latitude is…
a.
0°
b.
50° N
c.
40° N
d.
40°S
e.
50°S
Difference between longitude and latitude.
You are at the Tropic of Capricorn(23.5 degrees Southlatitude), on the summer solstice at mid-day when the Sun is highest in the sky. A) What is the altitude of the Sun at this time in degrees? B) Describe the length of the shadow of a tall flagpole at this time and date? C) Melbourne is at latitude 28 degrees North. Will there ever be a day when the flagpole’s shadow disappears? Briefly justify your answers.
Chapter 2 Solutions
Essential Cosmic Perspective
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 - Cultural Constellations. Many cultures have...Ch. 2 - Group Discussion: Sharing the Sky. Astronomers...Ch. 2 - Prob. 39EAPCh. 2 - These questions may be answered individually in...Ch. 2 - These questions may be answered individually in...Ch. 2 - These questions may be answered individually in...Ch. 2 - These questions may be answered individually in...Ch. 2 - New Planet. A planet in another solar system has a...Ch. 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 - Project: Eclipse Trip. Find details about a future...Ch. 2 - Be sure to show all calculations clearly and state...Ch. 2 - Find the Sun’s Diameter. The Sun has an angular...Ch. 2 - Prob. 54EAPCh. 2 - Prob. 55EAP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- On a globe or world map, find the nearest marked latitude line to your location. Is this an example of a great circle? Explain.arrow_forwardAre meridians great circles? Explain.arrow_forwardIn a part of Earth’s orbit where Earth is moving faster than usual around the Sun, would the length of the solar day change? If so, how? Explain.arrow_forward
- Explain the origin of the leap year. Why is it necessary?arrow_forward14. Cause of the Seasons. Suppose a friend is trying to claim that it is summer when Earth is closest to the Sun and winter when Earth is farthest away. Refute this claim in at least two different ways: (1) with an argument that invokes seasonal differences between the Northern and Southern Hemispheres and (2) with an argument based on the times of year at which Earth actually is closest to and farthest from the Sun. Write out your arguments clearly.arrow_forwardHow to know the time zones.arrow_forward
- 1) You are at the Tropic of Capricorn (23.5 degrees South latitude), on the summer solstice at mid- day when the Sun is highest in the sky. A) What is the altitude of the Sun at this time in degrees? B) Describe the length of the shadow of a tall flagpole at this time and date? C) Melbourne is at latitude 28 degrees North. Will there ever be a day when the flagpole's shadow disappears? Briefly justify your answers.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_forwardDetermine the month and day when the Sun is at a minimum altitude for an observer in Washington, DC (39°N). What is the altitude of the Sun in degrees at this time?arrow_forward
- 1. Calculate the local solar time and the corresponding hour angle at 9 A.M (local standard time, L.St.T) on October 21st, for the Indian city of Kolkata located at 22°82'N and 88°20'E, the LSM for India is 82°30'. the EOT for Kolkata on October 21st is 15 minutes.arrow_forwardFrom horizon to zenith, the sky takes up how much angular distance? A. 90 degrees B. 360 degrees O C. you can't fool me, this number varies with latitude D. 180 degrees O E. 100 degreesarrow_forwardDescribe what the sky would look like at the North Pole at night. How would the sky change over a 24 hr period?arrow_forward
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