# Orbital Mechanics
## Altitudes
### Low Earth Orbit (LEO)
* **Altitude:** 200-2,000 km
* **Velocity:** 7.7-6.9 km/s
* **Orbital Period:** 1h29min-2h8min
### Geostationary Orbit
* **Altitude:** 42,000 km
* **Velocity:** 3.1 km/s
* **Orbital Period:** 23h56min4.09s
### Orbit of the Moon
* **Altitude:** 357,000-399,000 km
* Average: 384,400 km
* **Velocity:** 0.97-1.08 km/s
* **Orbital Period:** 27.27 days
## Light Speed (*c*)
* **m/s:** 299,792,458 m/s
* **km/s:** ~300,000 km/s
* **mi/s:** 186,411.36 mi/s
### Time To Cover Distances (*c*)
* **Earth-Moon:** 1.255s (~384,400 km)
* **Sun-Earth:** 8min17s (150MM km)
## Escape Velocities of Various Bodies
* **Earth V<sub>e</sub>:** 11.186 km/s
* **Moon V<sub>e</sub>:** 2.38 km/s
#space #astrophysics