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Atmospheric Absorption of Starlight

  1. Apr 23, 2007 #1
    I realize that Starlight atmospheric absorption depends on frequency, but I was wondering if there are any tables indicated total bolometric absorption at Zenith relative to absorption at Sea Level. Obviously atmospheric absorption is much less on the top of Everest than in my hometown (a few hundred feet above sea level). But I'd like to know the difference.


  2. jcsd
  3. Apr 23, 2007 #2


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    The absorption depends on so many factors that there isn't (to my knowledge) any simple tables.

    By the way Zenith refers to an angle in the sky (essentially straight up) while sea level refers to altitude on the Earth, so they are very different things! Absorption will depend on both of these factors as well as other conditions such as the local humidity, particle concentration and even temperature.
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