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Magnetorquers and reaction wheels?

  1. May 12, 2012 #1
    What is the physics behind magnetorquers and reaction wheels which help in satellite attitude determination and control?
  2. jcsd
  3. May 13, 2012 #2


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    When you accelerate a reaction wheel, the satellite moves in the opposite direction. (Newtons third law) Using a couple of these you can turn the satellite in any direction.

    For the magnetorquer, I can give the explanation from the wikipedia article: en.wikipedia.org/wiki/Magnetorquer

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