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B Inner-atmospheric orbit

  1. Mar 25, 2017 #1
    Hi, was just wondering if gravitational orbit be achieved inside the Earth's atmosphere. Or how close a satellite can be to the ground?

    Additionally, would the Death Star have been completely covered in solar panels?
  2. jcsd
  3. Mar 25, 2017 #2
    Which part of the atmosphere are you referring to? And no, if I'm correct, the Death Star had a fusion reactor.
  4. Mar 25, 2017 #3
    Orbit can be falling when tangential velocity can path beyond horizon when vertical is less than escape velocity. a sufficiently såeedy satellite could orbit the earth within the atmosphere, but friction would be a huge practical problem.
  5. Mar 25, 2017 #4
    I suppose I would like to know if something can orbit between the Mesosphere and the Exosphere without using rockets.
    Didn't think of friction- that is problematic.
  6. Mar 25, 2017 #5
    It is possible, but it's unlikely
  7. Mar 25, 2017 #6
    Aerodynamics is too.
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