How to determine how hot or cold a star is?

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asked Jul 24, 2019 125k views

1 Answer

Massa · Answer 1 · 2019-07-30T05:25:09+0000

If a star is a brilliant blue color, it's really hot and emits a lot of energy. If it's red, it has a cool surface temperature instead. Therefore, the dominant wavelength of a star's light can tell us its surface temperature.

How to determine how hot or cold a star is?

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