plural of gravity-assist

Alternative form of gravity brightening

(physics, astronomy) The phenomenon of a star rotating so rapidly that it is oblate, with a larger radius and thus lower surface gravity at the equator (which is thus cooler and darker: gravity-darkened), and higher surface gravity at the poles (which are hotter and brighter: gravity brightened).

(physics, astronomy) Of a star, specifically its equator: darker due to gravity darkening.

A measure of the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth, defined by standard as 9.80665 m/s².

Synonym of gravity darkening

Alternative form of gravity darkening

(physics, astronomy) Of a star, specifically its poles: brighter due to gravity brightening.

plural of gravity wind

An impoundment dam that is wider at the base than at the top, and which uses the massive weight of the dam's mass to withstand the force of water being being stored behind the dam in its reservoir.