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We can determine the age of a star cluster by measuring the color of the reddest red giant stars in the cluster.
Q2: A star classified as a K0III star
Q5: All short-period comets have periods less than
Q9: Explain the effect of core convection on
Q15: A particular asymptotic giant branch star has
Q37: What is plotted on a rotation curve,
Q51: Parallax is used to measure a star's:<br>A)
Q64: Name three "rungs" in the distance ladder
Q66: On a typical H-R diagram, where are
Q69: Figure 1 shows an H-R diagram, with
Q87: If a sunspot is half as bright