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Homework Help: Parallax & distance

  1. Jul 2, 2011 #1
    1. The problem statement, all variables and given/known data

    the solar parallax is 8.8 arc seconds.. calculate its distance from earth?

    2. Relevant equations

    distance(in parsec)=1/parallax in arc sec

    atempts to solution

    i know this formula but it provides me weird ans like
    distance=0.11pc while using this formula.......wheres the err?
  2. jcsd
  3. Jul 2, 2011 #2


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    Science Advisor
    Gold Member

    If the parallax is 8.8 arc seconds, .11pc distance sounds reasonable to me. What's your problem with that answer?
  4. Jul 2, 2011 #3
    but its the solar parallax. & pc distance from earth to sun should be 4.8x10^-6pc.
    isn't it?
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