Orbits and mechanics
逃逸速度
Escape velocity
The minimum speed needed to leave a body's gravity.
11.2 km/s at Earth's surface, only 2.4 km/s at the Moon.
Related terms
- Hohmann transfer — A two-burn manoeuvre that moves between circular orbits on minimum fuel.
- Orbital plane — The plane an orbit lies in, tilted by its inclination.
- Ascending node — Where the orbit crosses the equator going north.
- Precession — The slow rotation of an orbital plane.