21st Century Astronomy (fifth Edition)
5th Edition
ISBN: 9780393603330
Author: Laura Kay, Stacy Palen, George Blumenthal
Publisher: W. W. Norton & Company
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Chapter 19.1, Problem 19.1CYU
To determine
Among the given options galaxies are classified based on
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What are the three main types of galaxies, and what are the peculiarities? What type is the Milky Way?
what evidence is there that galaxies collide and merge?
Of the following groupings of galaxies, the one that is largest in size is the
a.
Local Supercluster.
b.
Local Group.
c.
filaments and voids.
d.
Coma Cluster.
Chapter 19 Solutions
21st Century Astronomy (fifth Edition)
Ch. 19.1 - Prob. 19.1CYUCh. 19.1 - Prob. 19.2CYUCh. 19.2 - Prob. 19.3CYUCh. 19.3 - Prob. 19.4CYUCh. 19.4 - Prob. 19.5CYUCh. 19 - Prob. 1QPCh. 19 - Prob. 2QPCh. 19 - Prob. 3QPCh. 19 - Prob. 4QPCh. 19 - Prob. 5QP
Ch. 19 - Prob. 6QPCh. 19 - Prob. 7QPCh. 19 - Prob. 8QPCh. 19 - Prob. 9QPCh. 19 - Prob. 10QPCh. 19 - Prob. 11QPCh. 19 - Prob. 12QPCh. 19 - Prob. 13QPCh. 19 - Prob. 14QPCh. 19 - Prob. 15QPCh. 19 - Prob. 16QPCh. 19 - Prob. 17QPCh. 19 - Prob. 18QPCh. 19 - Prob. 19QPCh. 19 - Prob. 20QPCh. 19 - Prob. 21QPCh. 19 - Prob. 22QPCh. 19 - Prob. 23QPCh. 19 - Prob. 24QPCh. 19 - Prob. 25QPCh. 19 - Prob. 26QPCh. 19 - Prob. 27QPCh. 19 - Prob. 28QPCh. 19 - Prob. 29QPCh. 19 - Prob. 30QPCh. 19 - Prob. 31QPCh. 19 - Prob. 32QPCh. 19 - Prob. 33QPCh. 19 - Prob. 34QPCh. 19 - Prob. 35QPCh. 19 - Prob. 36QPCh. 19 - Prob. 37QPCh. 19 - Prob. 38QPCh. 19 - Prob. 39QPCh. 19 - Prob. 40QPCh. 19 - Prob. 41QPCh. 19 - Prob. 42QPCh. 19 - Prob. 43QPCh. 19 - Prob. 44QPCh. 19 - Prob. 45QP
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- Describe the main distinguishing features of spiral, elliptical, and irregular galaxies.arrow_forwardStarting with the determination of the size of Earth, outline a sequence of steps necessary to obtain the distance to a remote cluster of galaxies. (Hint: Review the chapter on Celestial Distances.)arrow_forwardDescribe the organization of galaxies into groupings, from the Local Group to superclusters.arrow_forward
- Which of the following might you expect to be an additional consequence of the fact that galaxies contain more mass than expected?A. The gravitational force between galaxies is greater than expected.B. Galaxies appear less bright than expected.C. Galaxies are farther away than expected.D. There are more galaxies than expected.arrow_forwardList and briefly describe 3 of the main differences between spiral galaxies and largeelliptical galaxies.arrow_forwardDescribe the age and temperature of stars that make up spiral galaxies and their location.arrow_forward
- Which galaxies are moving the fastest away from us?arrow_forwardJoaquin tells his science class that galaxies consist of gas, dust, and many planets. What is the most important component of galaxies Joaquin is missing in his descriptionarrow_forwardCompare an Elliptical Galaxy to a Spiral Galaxy with 3 differences each and 2 similarities.arrow_forward
- If a group of galaxies is revolving around its center at 240 miles/sec how fast is it moving in miles/hr?arrow_forward5. What evidence can you cite that the nucleus of the galaxy contains a supermassive energy source that is very small in size?arrow_forwardIf a galaxy is 100,000,000 parces away and has absolute magnitude of -20.0 what is the galaxies apparent magnitude? (M=m+5-5 log d)arrow_forward
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