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Relative distance

  1. Jun 10, 2006 #1
    If I am traveling at a good fraction of the speed of light (.9c for example) toward an object, how would the distance between the object and myself from my viewpoint compare to the that of an observers viewpoint
  2. jcsd
  3. Jun 10, 2006 #2


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    I presume you mean traveling at that speed with respect to the observer and that the observer is at rest with respect to your destination; you always have to state your frames of reference. So if you were traveling a .866c relative to this observer (I picked that value because its numbers come out nice) then your measurement of the distance to the object would be just half of what the observer would measure. If he said "that ship is 2 light years from its goal" you would be saying "I have only one light year to go."
    Last edited: Jun 10, 2006
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