Solved

The Distance to the Globular Cluster M55 Has Been Determined

Question 4

Multiple Choice

The distance to the globular cluster M55 has been determined to be 6500 pc by analysis of RR Lyrae stars in the cluster. How do the apparent brightnesses of these stars compare with the apparent brightness of the Sun? (Calculate b/bŸe)


A) 5.9 × 10-17
B) 2.5 × 10-7
C) 2.4 × 10-6
D) There is no reason to believe all RR Lyrae stars in M55 have the same apparent brightness.

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q1: Which one of the following objects does

Q2: The speed of the Sun in its

Q3: What is the net electric charge on

Q5: Who did early studies of RR Lyrae

Q6: Astronomers are able to study the center

Q7: Where in the Milky Way Galaxy would

Q8: If the Sun were traveling around the

Q9: If you want to find the distribution

Q10: In the absence of interstellar dust, a

Q11: Dark matter cannot be seen, but we