In the Solar System · tracked live
Moon
The Earth's only natural satellite and the fifth largest in the Solar System: a quarter of the Earth's width, an eightieth of its mass, with no atmosphere to speak of and a surface that swings between about 120 °C in sunlight and −170 °C at night. It is locked to the Earth by tides, so the same face is always turned this way, and it is drifting away at about 3.8 cm a year - measured by bouncing lasers off the reflectors Apollo and Lunokhod left behind.
- Radius
- 1,737 km
- Around the equator
- 10,916 km
- Mass
- 7.35 x 10^22 kg
- Compared with the Earth
- 0.012 ×
- Turns once in
- 27.3 d
- From the Sun
- 148,936,682 km (+1,931 km/d)
- From the Earth
- 397,774 km (+3,065 km/d)
- A signal takes
- 1 s
Distances and speed are computed from JPL Horizons trajectories and are true of the date below, changing at the rate beside each.
Everything the map shows is worked out in your browser from published orbital data - nothing on it is a stored picture of where things were.