Match each statement with the appropriate item (if the first corresponds to B and the next 4 to C, enter BCCCC) 1) group of stars that was formed all at the same time, with the same composition 2) the top of the main sequence of a cluster; more massive stars in the cluster have already evolved 3) globular clusters stars that are burning helium in their core 4) young, spread out star cluster 5) old, dense star cluster A. main sequence turnoff B. open cluster C. star cluster D. horizontal branch stars E. globular cluster
Match each statement with the appropriate item (if the first corresponds to B and the next 4 to C, enter BCCCC) 1) group of stars that was formed all at the same time, with the same composition 2) the top of the main sequence of a cluster; more massive stars in the cluster have already evolved 3) globular clusters stars that are burning helium in their core 4) young, spread out star cluster 5) old, dense star cluster A. main sequence turnoff B. open cluster C. star cluster D. horizontal branch stars E. globular cluster
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Match each statement with the appropriate item (if the first corresponds to B and the next 4 to C, enter BCCCC)
1) group of stars that was formed all at the same time, with the same composition
2) the top of the main sequence of a cluster; more massive stars in the cluster have already evolved
3) globular clusters stars that are burning helium in their core
4) young, spread out star cluster
5) old, dense star cluster
A. main sequence turnoff
B. open cluster
C. star cluster
D. horizontal branch stars
E. globular cluster
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