Multiple Choice
Which of the clusters in this figure are open clusters? 
A) Westerlund 2 and M53
B) NGC 290 and M9
C) NGC 290 and Westerlund 2
D) M9 and Westerlund 2
E) M53 and NGC 290
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q31: What mechanism drives the pulsations in Cepheid
Q80: Massive stars explode soon after fusion to
Q82: Once silicon burning begins to fuse iron
Q83: An iron core cannot support a massive
Q84: The acceleration from gravity on the
Q85: Neutron stars are sometimes found in binary
Q87: The nuclear reaction that releases the most
Q88: Suppose you measured H-R diagrams for the
Q89: Describe the physical mechanism that causes pulsations
Q90: List the following H-R diagrams from oldest