ASTRO 205 Multiple Exam Questions and Answers Rated A.

ASTRO 205 Multiple Exam Questions and Answers Rated A.
Who first calibrated the Cepheid period-luminosity relationship to use it in
determining distance?
a. Henrietta Leavitt
b. Edwin Hubble
c. Hipparchus
d. Carl Sagan
e. Harlow Shapley
Verified Answer -e. Harlow Shapley
1. If light from the sun takes eight minutes to reach Earth and about five
hours to reach Pluto, what is the rough distance from the sun to Pluto?
5AU
40AU
67AU
83AU
121 AU
Verified Answer -40AU
2. An observer in the Northern Hemisphere watches the sky for several
hours. Due to the motion of the Earth, this observer notices that the stars
near the NCP appear to move
counter-clockwise.
clockwise.