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Advantage of measuring stellar parallaxes from Mars rather than Earth?

  1. Mar 9, 2008 #1

    bse

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    Is there advantage of measuring stellar parallaxes from Mars rather than from Earth? Would it be more accurate than from Earth?

    Thanks
     
  2. jcsd
  3. Mar 9, 2008 #2

    Wallace

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    Think about how parallax distances are measured. What would make them more accurate? What might the difference between the Earth and Mars be in relation to this? (Hint: parallax measurements require two observations six months apart).
     
  4. Mar 9, 2008 #3

    bse

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    Ok i got it. It's because the distance from mars to the sun is greater than from the sun to earth, creating a larger baseline.
     
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