Astronomy Today (9th Edition)
9th Edition
ISBN: 9780134450278
Author: Eric Chaisson, Steve McMillan
Publisher: PEARSON
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Question
Chapter 1, Problem 2D
To determine
The comparison of the size of the Earth with that of the Sun, the Milky Way Galaxy, and the entire universe.
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Students have asked these similar questions
Compare the values of the number of grains of sand in all earth’s beaches with the number of stars in the universe – which is greater?
Number of sand grains
Number of stars
They are about the same.
Which of the following lists in order from smallest to largest?
O universe --> solar system --> galaxy
O galaxy --> solar system --> universe
O solar system --> universe --> galaxy
solar system --> galaxy --> universe
1 million kilometers can be expressed in scientific notation as:
10x10^6 km
10x10^-6 km
none of these
1x10^6 km
1x10^-6km
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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- What is the difference between the Solar System, the Galaxy, and the Universe?arrow_forwardThe time of the Cambrian explosion is listed on the second page of the Universe Bowl on the inside cover of the printed book. Express that time in scientific notation.arrow_forwardAn astronomical unit (AU) is defined as the average distance between the solar system and Alpha Centauri the Earth and the Moon the Milky Way Galaxy and the Andromeda Galaxy the Earth and the Sunarrow_forward
- What will be the long-term future of our Galaxy?arrow_forwardA typical galaxy is shown on the first page of the Universe Bowl on the inside cover of the printed book. Express the number of stars in this typical galaxy in scientific notation.arrow_forwardRank these objects from oldest to youngest the Solar System, the Universe, the Milky Way Galaxy.arrow_forward
- What is the densest substance in the universe?arrow_forwardPut in order from least to greatest the following terms: galaxy, planet, moon, sun, solar system, and universe. : galaxy : planet : moon :: solar system : sun : universe 7 8 10 11 12 91arrow_forwardConvert 3,000 grades/century to Mega Hertz (MHz)arrow_forward
- For thousands of years, many people thought earth was the center of the universe. Name one possibke reasons why they thought this.arrow_forwardgiven: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years) = 203,782,828.3 years M (mass of milky way galaxy in solar masses) = 1.22 x 10^11 Msun Question: Assume the Milky Way Galaxy is made up entirely of stars like the Sun, i.e. on average each star has the mass of 1 MSun. Under this assumption, approximately how many stars are there in our galaxy? Express this answer in billions of stars (1 billion = 109).arrow_forwardThe star that provides energy for life on earth is Moon Sun Milky Wayarrow_forward
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