Playing with Gravity Simulator and Earth-Moon System

There exist a lot of gravity simulators across the internet, some of them are good, some of them are bad.

I decided to try the Gravity Simulator from

in order to visualize the behavior of Moon with respect to Earth that is gradually losing its mass from 15 Earth masses (+/- Uranus) to 1 Earth mass. Can we explain the angular momentum of the Earth-Moon system via the Chthonian Theory?

Random Input Parameters


  • Mass: 15 Earth masses


  • Mass: 0.0123 Earth masses
  • Semi-major axis: 100,000 km
  • Eccentricity: 0
  • Velocity: +/- 7.7 km/s

I tried to reduce the Earth’s mass +/- every lunar orbit by 1 Earth mass. Here are some results:


The first results with random values showed that the Chthonian Theory can provide good explanation for the Earth-Moon system angular momentum (evolution).

What we observed:

  • The Earth-Moon distance is getting bigger.
  • The velocity of Moon is getting lower – from approximately 7.7 km/s to today’s value 1 km/s.
  • The finer and longer the mass loss, the smaller the eccentricity changes.

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