An approximately spherical cluster of over 100,000 stars that formed at the same time long ago in our galaxy is
A) a globular cluster.
B) an open cluster.
C) an association.
D) a spherical component
E) an accretion disk.
Correct Answer:
Verified
Q3: The chemical abundance of population I stars
A)indicates
Q6: The galactic halo or corona is believed
Q10: Younger stars have more heavy elements because
A)
Q11: Our galaxy is suspected to be surrounded
Q12: Who first used RR Lyrae variable stars
Q17: Who first determined that the energy/s emitted
Q17: Good tracers of the spiral arms of
Q18: Population II stars Q19: The energy source at the center of Q20: The center of our galaxy lies in
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