author headshot

Ben Wilson

Orbital Calculator

Converts planet code to distance.

kg in 1024. (Earth is 5.9736)

The synchronous orbit planets is calculated using the law of universal gravitation becomes: height = √3(G × M × T2 ÷ 4π2) - R

  • h = Height of the artificial satellite
  • G = Constant of gravitation (6.67 × 10-11)
  • M = Mass of the planet
  • T = Rotational period of the planet
  • R = Radius of the planet (Uses the Planet Size dropdown)

The geosynchronous orbit (synchronous orbit of the Earth) is at an altitude of 35,796 km (≈ 36,000 km) and has a semi-major axis of 42,167 km.

Planets Planets Mass (1024 kg) Volume (1012 km3) Radius (km) Rotation period (d) Synchronous orbit altitude (km) Synchronous orbit Semi-major axis (km) Satellite speed (km/s)
Mercury 0.3302 0.06083 2439.74 1403 240,025 242,464 0.30
Venus 4.8685 0.92843 6051.83 5816 1,527,832 1,533,883 0.46
Earth 5.9736 1.08321 6371.01 24 35,796 42,167 3.07
Mars 0.64185 0.16318 3389.95 24.6 17,002 20,392 1.45
Jupiter 1898.6 1431.28 69910.97 10 89,811 159,722 28.17
Saturn 568.46 827.13 58232.00 10.6 53,811 112,043 18.40
Uranus 86.81 68.33 25361.46 17.2 57,173 82,534 8.38
Neptune 102.43 62.526 24622.04 16 58,739 83,361 9.06
Europa 0.048 0.01593 1560.90 85 18,134 19,694 0.40