Multiple Choice
Star clusters are important to our study of stars because
A) all stars formed in star clusters.
B) the sun was once a member of a globular cluster.
C) they give us a method to test the our theories and models of stellar evolution.
D) they are the only objects that contain Cepheid variables.
E) all of the above.
Correct Answer:
Verified
Correct Answer:
Verified
Q3: Why can't a massive star generate energy
Q34: Giant and supergiant stars are rare because
Q37: After what evolutionary stage does a star
Q51: The image shows the Crab Nebula. The
Q54: Even the youngest star clusters have no
Q59: Stars in a star cluster<br>A) all have
Q60: An accretion disk can grow hot enough
Q61: The diagram below shows a light curve
Q69: Planetary nebulae are sites of planet formation.
Q123: A Type II supernova produces a planetary