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The Solar System

Question

The colour of a star is an indication of its ________________.
distance from the sun
luminosity
distance from the earth
temperature

A

distance from the sun

B

luminosity

C

distance from the earth

D

temperature

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Solution

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The color of a star mostly indicates a star's temperature, and it can also suggest the star's age. Class O stars, which are blue in color, are the hottest, and class M stars, which are red in color, are the coldest.

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