GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which one is the correct order from hottest to coolest stars?
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blue, yellow, orange, red
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red, orange, yellow, blue
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blue, red, yellow, orange
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yellow, blue, orange, red
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Explanation:
Detailed explanation-1: -Red stars are the coolest. Yellow stars are hotter than red stars. White stars are hotter than red and yellow. Blue stars are the hottest stars of all.
Detailed explanation-2: -The surface temperature of a star determines the color of light it emits. Blue stars are hotter than yellow stars, which are hotter than red stars.
Detailed explanation-3: -The hottest stars tend to appear blue or blue-white, whereas the coolest stars are red. A color index of a star is the difference in the magnitudes measured at any two wavelengths and is one way that astronomers measure and express the temperature of stars.
There is 1 question to complete.