Orbits and mechanics
速度增量
Delta-v
The velocity change needed to alter an orbit.
Reaching LEO costs about 9.3 km/s of delta-v.
Related terms
- Atmospheric reentry — A spacecraft coming back into the atmosphere.
- 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.