High School Can Satellites Orbit Within Earth's Atmosphere and How Close Can They Get?

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SUMMARY

Satellites cannot achieve stable orbits within Earth's atmosphere due to significant atmospheric drag and friction, particularly in the lower layers such as the Mesosphere and Exosphere. While theoretically, a sufficiently fast satellite could orbit within these layers, practical challenges such as aerodynamics and friction make this unfeasible. The discussion also touches on fictional concepts like the Death Star's energy source, clarifying that it operates on a fusion reactor rather than solar panels.

PREREQUISITES
  • Understanding of gravitational orbits and escape velocity
  • Knowledge of atmospheric layers, specifically the Mesosphere and Exosphere
  • Familiarity with satellite dynamics and aerodynamics
  • Basic principles of friction and its effects on motion
NEXT STEPS
  • Research the effects of atmospheric drag on satellite orbits
  • Explore the characteristics of the Mesosphere and Exosphere
  • Learn about satellite propulsion systems and their limitations
  • Investigate theoretical models of orbiting bodies in varying atmospheric conditions
USEFUL FOR

Aerospace engineers, astrophysicists, and enthusiasts interested in satellite technology and orbital mechanics.

Mateo
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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?
 
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Which part of the atmosphere are you referring to? And no, if I'm correct, the Death Star had a fusion reactor.
 
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.
 
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.
 
It is possible, but it's unlikely
 
Mateo said:
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.
Aerodynamics is too.
 

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