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Question

What does the colour of a star indicate?


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Solution

Colour of a star:

  1. A star's colour is related to its surface temperature.
  2. The shorter the wavelength of light emitted by a star, the hotter it is.
  3. Blue or blue-white light with shorter wavelengths is the hottest.
  4. Cooler colours have longer wavelengths, such as red or red-brown.

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