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Why do stars appear to be white in color?

  1. Sep 13, 2010 #1
    Why do stars appear to be white in color when viewed from the naked eye?
     
  2. jcsd
  3. Sep 13, 2010 #2

    russ_watters

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    Our color vision deteriorates at night, so most things you look at will lack color saturation.
     
  4. Sep 14, 2010 #3
    Still I am not satisfied with your answer. Can you explain in detail please?
     
  5. Sep 14, 2010 #4

    russ_watters

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    http://www.aoa.org/x5352.xml
     
  6. Sep 14, 2010 #5

    Vanadium 50

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    You should take a look at Orion, where there is one bright star that is definitely bluish and another that is definitely reddish to the naked eye. But it's also important to note that the color of incandescent bodies at stellar temperatures is predominantly white: indeed, the red star mentioned above, Betelgeuse, has about the same color as an ordinary light bulb. Red stars are not fire-engine red.
     
  7. Sep 14, 2010 #6

    Borek

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    Obviously they look white only to the naked eye...

    starrynight.jpg
     
  8. Sep 15, 2010 #7

    Chronos

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    As Russ noted, human eyes tend to be monochromatic under low light conditions. If you walk into a dimly lit room you will notice colors are difficult to discern.
     
  9. Sep 15, 2010 #8

    Borek

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    It is even more dramatic during full Moon. World often looks like made of mercury then, or something like that, shining gray. But when you try to take a picture, everything is in color.
     
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