surface gravity


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surface gravity

Symbol: g . The acceleration of gravity experienced by an object when it falls freely towards the surface of a planet or star.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
References in periodicals archive ?
metrological research, is the surface gravity model derived from the RTMA grid (Fig.
Titan's surface gravity is weaker than that of the Earth's Moon, and the origin of its craggy, mountainous features has inspired debate.
The Sun has about two million convective cells that are typically 2,000 kilometers across, but theorists believe giant and supergiant stars should only have a few large convective cells because of their low surface gravity. Determining the convection properties of most evolved and supergiant stars, such as the size of granules, has been challenging because their surfaces are frequently obscured by dust.
Applying our model (1), we can see that the Solar equatorial surface gravity acceleration [g.sub.Sun] = 274 m/[s.sup.2] corresponds with a main attractor node of the F (1) calibrated on the angular acceleration of the electron [a.sub.electron] = 2.327421 x [10.sup.29] m[s.sup.-2] (see table 1).
From our discussion on the t location-scale distribution in Carme group, it is easy to understand the distribution inference of semi-major axis, mean orbit velocity, equatorial radius, surface gravity, and escape velocity in the Ananke group (see Table 3).
The surface gravity on the apparent horizon is given by
This sunscreen snow is trapped in the lower atmosphere of Kepler-13Ab, where the planet's strong surface gravity - six times greater than Jupiter's - drags it from the upper atmosphere.
Scientists have for the first time established a solid relationship between surface gravity waves and acoustic gravity waves.
Later chapters cover pressurized flows, free surface flows, surface gravity waves, groundwater flow, and mass transport.
The study of evolution of weakly nonlinear surface gravity waves in crossing sea states has attracted considerable interest in recent years.
The new technique can translate modest fluctuations in starlight over several hours into insights about a star's size, surface gravity and stage of life.