Noun
surface gravity (countable and uncountable, plural surface gravities)
the gravitational acceleration experienced at a planet's surface at the equator, including the effects of rotation.
Eros's surface gravity varies greatly because Eros is not a sphere but an elongated peanut-shaped (or potato- or shoe-shaped) object. Source: Internet
For surface gravity waves, the water particle velocities are much smaller than the phase velocity, in most cases. Source: Internet
Clement later corrected his model of Mesklin and determined that the maximum surface gravity would be "only 250 gravities". Source: Internet
Its surface gravity is 0.063 g (compared to 1 g for Earth). Source: Internet
Most accurate relative gravimeters are superconducting gravimeters, and these are sensitive to one thousandth of one billionth of Earth surface gravity. Source: Internet
So the line width is dependent on the surface pressure of the star, which in turn is determined by the temperature and surface gravity. Source: Internet