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symbo symbo
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8 years ago
The Hertzsprung-Russell diagram is a plot of
A)   apparent brightness against intrinsic brightness of a group of stars.
B)   apparent brightness against distance for stars near the Sun.
C)   luminosity against mass of a group of stars.
D)   absolute magnitude (or intrinsic brightness) against temperature of a group of stars.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
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hyponoticahyponotica
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8 years ago
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symbo Author
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7 years ago
It's correct Smiling Face with Open Mouth
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