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doit_the_clown doit_the_clown
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7 years ago
Which of the following methods is the most accurate for measuring the age of a star cluster?

(a)   Determining the turn-off point from the main sequence in its Hertzsprung-Russell diagram.
(b)   Observing the strength of the metal lines in the spectra of its stars.
(c)   Measuring the amount of gas and dust in the cluster.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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hyponoticahyponotica
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7 years ago
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doit_the_clown Author
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7 years ago
Correct Slight Smile TY
rileyjones420
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decibul
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