🪐 Solar System 3D
Time:
Rocky planet
🌍 Earth
- Diameter
- 12,756 km
- Distance from Sun
- 149.6 million km (1 AU)
- Year
- 365.25 days
- Day
- 23 h 56 min spin; 24 h sunrise to sunrise
- Average temperature
- ≈ 15 °C
- Gravity
- 9.8 m/s²
- Moons
- 1
- Atmosphere
- 78% nitrogen, 21% oxygen
- Surface
- 71% covered by water
The only place known to have life. Liquid water, a protective magnetic field, a breathable atmosphere and plate tectonics that recycle carbon all help. Its 23.4° tilt gives us seasons.
🌙 The Moon
- Diameter
- 3,475 km (0.27 × Earth)
- Distance from Earth
- 384,400 km on average (light takes 1.3 s)
- Orbit
- 27.3 days around Earth; 29.5 days from one new moon to the next
- Gravity
- 1.62 m/s² (about 1/6 of Earth's)
- Temperature
- ≈ −173 °C at night to 127 °C by day
- Moving away
- 3.8 cm per year (measured by bouncing lasers off Apollo mirrors)