Surface Pressure

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The Surface Pressure of an object is the force per unit area that the object's atmosphere exerts on its surface.

Property Details[edit | edit source]

Location[edit | edit source]

The Surface Pressure property is located in the Atmosphere section of the Surface tab of the object's properties panel. This section is only visible for Terrestrial Planets.

Units[edit | edit source]

Surface Pressure can be viewed and edited using the following units:

  • Standard atmosphere (atm) = 101325 Pa
  • Bar (bar) = 100000 Pa
  • Kilopascal (kPa) = 1000 Pa
  • Millibar (mbar) = 100 Pa
  • Pascal (Pa) is the SI unit for pressure.

Simulation Effects[edit | edit source]

Atmosphere Mass[edit | edit source]

The Surface Pressure is related to the atmosphere mass, Matmo, and radius of the object, R, and the gravitational constant, G, by the following equation:

Surface Pressure will determine the Boiling Point and Freezing Point of water or CO2 on the surface of an object.