Acceleration of Planetary Motion. Increase in a planet's angular velocity when travelling from aphelion to perihelion (in accordÂance with Kepler's second law).
Acceleration of Sidereal Time. Amount of sidereal time gained by a sidereal clock in any given interval of mean solar time.
Acceleration of Wind. Apparent increase in wind-force when due to ship approaching direction of wind.
Acceleration Tables.Give the amount by which any mean time value of an interval must be increased to give the sidereal time value.