EBK UNDERSTANDING OUR UNIVERSE (THIRD E
3rd Edition
ISBN: 9780393631760
Author: Blumenthal
Publisher: VST
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Chapter 2, Problem 4QAP
To determine
Whether the statement is true or false.
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Description: 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->>
What is the total magnitude of three stars
having magnitudes of +1, +2, and +3
respectively?
Round your answer to two significant figures
Description: 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->>
Chapter 2 Solutions
EBK UNDERSTANDING OUR UNIVERSE (THIRD E
Ch. 2.1 - Prob. 2.1CYUCh. 2.2 - Prob. 2.2CYUCh. 2.3 - Prob. 2.3CYUCh. 2.4 - Prob. 2.4CYUCh. 2 - Prob. 1QAPCh. 2 - Prob. 2QAPCh. 2 - Prob. 3QAPCh. 2 - Prob. 4QAPCh. 2 - Prob. 5QAPCh. 2 - Prob. 6QAP
Ch. 2 - Prob. 7QAPCh. 2 - Prob. 8QAPCh. 2 - Prob. 9QAPCh. 2 - Prob. 10QAPCh. 2 - Prob. 11QAPCh. 2 - Prob. 12QAPCh. 2 - Prob. 13QAPCh. 2 - Prob. 14QAPCh. 2 - Prob. 15QAPCh. 2 - Prob. 16QAPCh. 2 - Prob. 17QAPCh. 2 - Prob. 18QAPCh. 2 - Prob. 19QAPCh. 2 - Prob. 20QAPCh. 2 - Prob. 21QAPCh. 2 - Prob. 22QAPCh. 2 - Prob. 23QAPCh. 2 - Prob. 24QAPCh. 2 - Prob. 25QAPCh. 2 - Prob. 26QAPCh. 2 - Prob. 27QAPCh. 2 - Prob. 28QAPCh. 2 - Prob. 29QAPCh. 2 - Prob. 30QAPCh. 2 - Prob. 31QAPCh. 2 - Prob. 32QAPCh. 2 - Prob. 33QAPCh. 2 - Prob. 34QAPCh. 2 - Prob. 35QAPCh. 2 - Prob. 36QAPCh. 2 - Prob. 37QAPCh. 2 - Prob. 38QAPCh. 2 - Prob. 39QAPCh. 2 - Prob. 40QAPCh. 2 - Prob. 41QAPCh. 2 - Prob. 43QAPCh. 2 - Prob. 44QAPCh. 2 - Prob. 45QAP
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- Explain 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_forwardExplain why more stars are circumpolar for observers at higher latitudes.arrow_forwardDescribe a practical way to determine in which constellation the Sun is found at any time of the year.arrow_forward
- 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 altitude of the north celestial pole in the sky from your latitude? If you do not know your latitude, look it up. If you are in the Southern Hemisphere, answer this question for the south celestial pole, since the north celestial pole is not visible from your location.arrow_forwardThe Sun is much closer to Earth than are the nearest stars, yet it is not possible to measure accurately the diurnal parallax of the Sun relative to the stars by measuring its position relative to background objects in the sky directly. Explain why.arrow_forward
- Why does the number of circumpolar constellations depend on the latitude of the observer?arrow_forwardHow is the position of a star designated in the sky?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
- From where on Earth could you observe all of the stars during the course of a year? What fraction of the sky can be seen from the North Pole?arrow_forwardExplain how the zodiacal constellations are different from the other constellations.arrow_forwardSuppose you are on a strange planet and observe, at night, that the stars do not rise and set, but circle parallel to the horizon. Next, you walk in a constant direction for 8000 miles, and at your new location on the planet, you find that all stars rise straight up in the east and set straight down in the west, perpendicular to the horizon. How could you determine the circumference of the planet without any further observations? What is the circumference, in miles, of the planet?arrow_forward
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