Bundle: Foundations of Astronomy, Enhanced, Loose-Leaf Version, 13th + MindTap Astronomy, 2 terms (12 months) Printed Access Card
13th Edition
ISBN: 9781337214353
Author: Seeds, Michael A., Backman, Dana
Publisher: Cengage Learning
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Question
Chapter 2, Problem 1DQ
To determine
Why constellations were named by all cultures.
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Astronomers frequently say that “there are more stars in the universe than there are grains of sand on all the beaches on the earth”. Given that a typical grain of sand is about 0.5 – 1.0 mm in diameter, estimate the number of grains of sand on all the earth’s beaches. The diameter of the Earth is 12,742 km.
About 1011
About 1016
About 1021.
Please explain how you got the answer for this, thank you so much!
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
Bundle: Foundations of Astronomy, Enhanced, Loose-Leaf Version, 13th + MindTap Astronomy, 2 terms (12 months) Printed Access Card
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 - Prob. 15RQCh. 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 - Prob. 28RQCh. 2 - How Do We Know? Why must a scientific argument...Ch. 2 - Prob. 1DQCh. 2 - Prob. 2DQCh. 2 - Prob. 3DQCh. 2 - Prob. 4DQCh. 2 - Prob. 5DQCh. 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 - Find the Big Dipper in the star trails photograph...Ch. 2 - Prob. 2LTLCh. 2 - Prob. 3LTLCh. 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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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
- All cultures on Earth named constellations. Why do you suppose this was such a common practice?arrow_forwardWhy do you think so many people still believe in astrology and spend money on it? What psychological needs does such a belief system satisfy?arrow_forwardHow would you figure this out?arrow_forward
- As we discuss in class, the radius of the Earth is approximately 6370 km. Theradius of the Sun, on the other hand, is approximately 700,000 km. The Sun is located,on average, one astronomical unit (1 au) from the Earth. Imagine that you stand near Mansueto Library, at the corner of 57th and Ellis.Mansueto’s dome is 35 feet (10.7 meters) high. Let’s imagine we put a model of theSun inside the dome, such that it just fits — that is, the model Sun’s diameter is 35 feet The nearest star to the Solar System outside of the Sun is Proxima Centauri,which is approximately 4.2 light years away. Given the scale model outlined above,how far would a model Proxima Centauri be placed from you? Give your answer inmiles and kmarrow_forwardThe nearest star to our sun is Proxima Centauri, at a distance of 4.3 light-years from the Sun. A light-year is the distance that light travels in one year (365 days). How far away, in kilometers, is Proxima Centauri from the Sun?Express your answer using two significant figures.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
- 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_forwardConsider a star at a distance of 100 light years from the Earth and is moving relative to the Earth at a constant velocity of 70000 km/hr perpendicular to its line of sight from the Earth. What is the change of its angular position on our sky when viewed by us now and by the ancient Egyptian 6000 years ago? Ignore all other effect, e.g., the axial precession of the Earth. 1. (A) 0.24 arcsecond (В) 13 arcminutes (C) 0.5 degree (D) 2.6 degrees (E) 5.0 degreesarrow_forward
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