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Measuring the absolute value of the AU

  1. Oct 2, 2006 #1
    How can they be sure that the value for the AU is 149,597,870 km? What methods are used to measure it?
     
  2. jcsd
  3. Oct 2, 2006 #2
    http://neo.jpl.nasa.gov/glossary/au.html
     
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