Multiple Choice
Two stars, one classified A4 V and the other A4 III, have the same apparent magnitude. There is no significant amount of absorption of starlight by interstellar material. From this information one knows that the A4 V star is _____ than the A4 III star.
A) cooler
B) closer to the Sun
C) farther from the Sun
D) hotter
Correct Answer:
Verified
Correct Answer:
Verified
Q162: Barnard's star, one of Earth's near neighbors,
Q163: Which of these CANNOT be determined by
Q164: An astronomer looks through a telescope and
Q165: Using the Hertzsprung-Russell diagram (Figure 12-7 in
Q166: The spectrum of a very distant source
Q168: If the Sun were orbited by a
Q169: How are white dwarfs treated in the
Q170: A particular star appears brighter seen through
Q171: If star A has an apparent magnitude
Q172: The star Regulus, in the constellation Leo,