Gravitational Potential - Numerical Values

Numerical Values

The absolute value of gravitational potential at a number of locations with regards to the gravitation from the Earth, the Sun, and the Milky Way is given in the following table; i.e. an object at Earth's surface would need 60 MJ/kg to "leave" Earth's gravity field, another 900 MJ/kg to also leave the Sun's gravity field and more than 130 GJ/kg to leave the gravity field of the Milky Way. The potential is half the square of the escape velocity.

Location W.r.t. Earth W.r.t. Sun W.r.t. Milky Way
Earth's surface 60 MJ/kg 900 MJ/kg ≥ 130 GJ/kg
LEO 57 MJ/kg 900 MJ/kg ≥ 130 GJ/kg
Voyager 1 (17,000 million km from Earth) 23 J/kg 8 MJ/kg ≥ 130 GJ/kg
0.1 light-year from Earth 0.4 J/kg 140 kJ/kg ≥ 130 GJ/kg

Compare the gravity at these locations.

Read more about this topic:  Gravitational Potential

Famous quotes containing the words numerical and/or values:

    There is a genius of a nation, which is not to be found in the numerical citizens, but which characterizes the society.
    Ralph Waldo Emerson (1803–1882)

    Our children need to be able to see us take a stand for a value and against injustices, be those values and injustices in the family room, the boardroom, the classroom, or on the city streets.
    Barbara Coloroso (20th century)