Planetary constants

Earth

• radius
  • Value
  • Reference
• gravitational acceleration
  • Value
    • 9.80665 m s-2
  • Reference
    • WMO technical regulations, Appendix A, 1-Ap-A-2
• mean molecular weight
  • Value
    • 28.9644e-3 kg mol-1
  • Reference
    • WMO technical regulations, Appendix A, 1-Ap-A-1
• molecular weight of water vapor
  • Value
    • 18.0153e-3 kg mol-1
  • Reference
    • WMO technical regulations, Appendix A, 1-Ap-A-2