GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is hottest?
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a red giant superstar
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a small, white dwarf
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a main-sequence yellow star
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a main-sequence blue star
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Explanation:
Detailed explanation-1: -In general, a star’s temperature determines its color, from red to blue-white. Spectral types are named with a letter. The seven main types are M, K, G, F, A, B and O. M stars are the coldest stars and O stars are the hottest.
Detailed explanation-2: -These are the two basic reasons for different star colors: Temperature – cooler stars are red, warmer ones are orange through yellow and white. The hottest stars shine with blue light.
Detailed explanation-3: -Stars have different colors, which are indicators of temperature. The hottest stars tend to appear blue or blue-white, whereas the coolest stars are red.
There is 1 question to complete.