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The Eccentricity of an object's orbit represents how circular the orbit is. Eccentricity cannot be negative, and higher Eccentricity values indicate a more elongated orbit. The value of the Eccentricity property will also determine the type of orbit or trajectory:

  • Eccentricity = 0: circular
  • 0 < Eccentricity < 1: elliptical
  • Eccentricity = 1: parabolic
  • Eccentricity > 1: hyperbolic

Eccentricity is one of the six orbital elements that described an object's orbit.

Property Details[edit | edit source]

Location[edit | edit source]

The Eccentricity property is located in the Orbital Elements section of the Motion tab of an object's properties panel, if that object has an Orbital Parent.

Units[edit | edit source]

The Eccentricity property has no units, as eccentricity is a dimensionless parameter.

Simulation Effects[edit | edit source]

Tidal Heating[edit | edit source]