Mars Facts

  • Equator circumference: 21,297km
  • Radius: 3,390km
  • Average distance from Sun: 228 million km
  • Surface temperature: -153°C to 20°C
  • Average orbital speed: 86,700km/h (24km/s)
  • Day length: 24.6 hours
  • Year length: 687 Earth days
  • Moons: 2
  • Planet type: terrestrial