Final answer:
The color of a star indicates its temperature, with blue stars being the hottest and red stars being the coolest.
Explanation:
The hottest stars are blue or blue-white in color, while the coolest stars appear red. This color variation is due to the temperature of the star's surface. For example, Archenar, being blue, would be hotter than Betelgeuse, which is red.
Learn more about Stars and temperature here:
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