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
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