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8 November, 11:34

List the stars below from coolest to hottest.

Sirius

Betelgeuse

Rigel

Sun

Arcturus

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  1. 8 November, 11:57
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    The different colors of the stars indicate their temperature: the hottest stars tend to appear blue while the coolest stars are red. Based on their colors and temperatures, the given stars can be listed from coolest to hottest as:

    Betelgeuse - reddish in color with around 3500K surface temperature

    Arcturus - reddish or orange with around 4290K surface temperature

    Sun - yellow with around 5800K surface temperature

    Sirius - white to blue-white with surface temperature around 9940K

    Rigel - blue-white with surface temperature around 12500K
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