Surface gravity
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Surface gravity: 274 m . s-2 Escape velocity at surface: 618 km . s-1 Radiation emitted: 3.86 X 1026 W Equatorial rotation period: 26 days
Mass loss rate: 109 kg . s-1
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Surface Gravity
g: Also called acceleration due to gravity. The rate at which a small object in free fall near the surface of a body is accelerated by the gravitational force of the body, g = GM / R2.
Surface Gravity
0.38 that of Earth (If you weigh 100 pounds, you would weigh about 38 pounds on Mercury.)
Known Moons ...
Surface gravity (earth = 1)
0.91
Atmospheric pressure at surface (earth = 1 bar) ...
SURFACE GRAVITY
Surface gravity is the strength of the gravitational field (the acceleration due to gravity) at the surface of the planet.
The surface gravity on Eros varies a lot, since it is an elongated body shaped described as looking like a peanut or potato or shoe.
Because surface gravity weakens as a star's convective envelope expands, ...
Equatorial surface gravity (m/sec^2)22.88
Equatorial escape velocity (km/sec)59.56
Visual geometric albedo0.52 ...
Notes: Surface gravity g is given in Earth gravities (1 gE = 9.803 m/s2); escape velocity is vesc; albedo is the percent of ALL of the Sun's energy hitting the planet that is reflected (100% would be perfect reflection); ...
[34] Mars has surface gravity 0.39 g or about 3.9 m/s2, radius r = 3332 km and a rotation period of 24 hr. 37.38 min.
F Mode (SOHO Glossary - GSFC) A wave mode generated by a surface gravity wave. F region (NASA Thesaurus) A portion of he ionosphere extending from about 150 to 1000 km.
61 g/cm3 Surface gravity
0.113 m/s2 (0.0115 g) Escape velocity
0.241 km/s (866 km/h) Rotation period
synchronous Axial tilt
zero Albedo/Geometric albedo
0.99/1.41 A. Verbiscer et al. (2005).
Using the stellar spectrum, astronomers can also determine the surface temperature, surface gravity, metallicity and rotational velocity of a star.
The strength of this decrement is partly a function of the surface gravity of the star, which is a function of the mass of the star and its radius.
The great height of Martian volcanoes is a direct consequence of the planet's low surface gravity. As lava flows and spreads to form a shield volcano, its eventual height depends on the new mountain's ability to support its own weight.
How big is really, really, really huge for surface gravity? What does gravity do any ways? It prevents things from getting away. Let's say you wanted to go to another planet.
This results in a surface gravity of about 40% of the gravity as the Earth. Compared with the Earth, Mars revolves around the Sun at about one and a half times the distance which the Earth does.
With no plate motion, hot spots under the crust stay in a fixed position relative to the surface; this, along with the lower surface gravity, may be the explanation for the giant volcanoes. However, there is no evidence of current volcanic activity.
The combination of the radius and the mass of a star determines the surface gravity. Giant stars have a much lower surface gravity than main sequence stars, while the opposite is the case for degenerate, compact stars such as white dwarfs.
Gravity, Surface: A spherical object of Mass M and radius R produces a downward gravitational acceleration at its surface (the surface gravity) equal to GM/R 2. Increasing the mass or decreasing the radius will cause the surface gravity to go up.
What is the surface gravity? (on Earth it is 1"g" = 9.8 m/s/s = 32 ft/s/s ) What is the temperature? How different is it from day to night? How long are the days? Does Jupiter block the Sun often? Is there volcanic activity?
Mars is the most Earth-like planet in the solar system (except for in size and therefore surface gravity; Venus takes the cake for that characteristic).
Mars's surface gravity is 38% of Earth's. So, the apparent size of Mars, as viewed through a telescope from Earth, will vary from as small as 13.8 seconds of arc during Aphelic apparitions, and as large as 25.
This, along with the lower surface gravity, may account for the Tharis bulge and its enormous volcanoes. There is no evidence of current volcanic activity.
Second, only a small amount of lithium is detected in its atmosphere (a characteristic of elderly stars) and third, the star's surface gravity is too weak for a young star and is much better matched to an old red giant.
Because of the Moon's small size and mass, its surface gravity is only about one-sixth of the planet's and it retains little atmosphere.
Scrollable database information on Jupiter included its current position, magnitude, rise and set time, mass, apparent diameter, actual diameter, distance from earth, length of day, orbital period, surface gravity, temperature range, number of moons, ...
Of course with an object like a neutron star with a large mass but a small radius, one has an enormous surface gravity, 1012 times that of the Earth. The escape velocity from the neutron star is about half the speed of light.
 See also: Gravity, Mass, Earth, Orbit, Planet
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