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How Do Astronomers Create Three-Dimensional Maps of the Universe

Question 5

Multiple Choice

How do astronomers create three-dimensional maps of the universe?


A) through comparison of computer models of the structure formation with observations
B) by using the position on the sky and the redshift to determine a distance along the line of sight
C) by using the position on the sky and the galaxy brightness as a measure of distance along the line of sight
D) by interpreting the peculiar velocities of each galaxy
E) by carefully measuring the parallax of each galaxy

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