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The temperature and pressure inside Jupiter increase steadily inward as the heat of planetary formation can only escape by convection. [56] At a surface depth where the atmospheric pressure level is 1 bar (0.10 MPa ), the temperature is around 165 K (−108 °C; −163 °F).
To make this into an equal-sided formula or equation, there needed to be a multiplying factor or constant that would give the correct force of gravity no matter the value of the masses or distance between them (the gravitational constant). Newton would need an accurate measure of this constant to prove his inverse-square law.
The choice of solar mass, M ☉, as the basic unit for planetary mass comes directly from the calculations used to determine planetary mass.In the most precise case, that of the Earth itself, the mass is known in terms of solar masses to twelve significant figures: the same mass, in terms of kilograms or other Earth-based units, is only known to five significant figures, which is less than a ...
The Jupiter mass, also called Jovian mass, is the unit of mass equal to the total mass of the planet Jupiter. This value may refer to the mass of the planet alone, or the mass of the entire Jovian system to include the moons of Jupiter. Jupiter is by far the most massive planet in the Solar System. It is approximately 2.5 times as massive as ...
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The standard gravitational parameter μ of a celestial body is the product of the gravitational constant G and the mass M of that body. For two bodies, the parameter may be expressed as G(m 1 + m 2), or as GM when one body is much larger than the other: = (+).
Around Dec. 14, Jupiter will be visible in the night sky between the nearly full moon and a reddish-orange star called Aldebaran, which shines brightest in the Taurus constellation and can be seen ...
For example, Titan's mean surface temperature is cited to the reference in its cell; it is not calculated like the temperatures of most of the other satellites here, because it has an atmosphere that makes the formula inapplicable. ^ Callisto's axial tilt varies between 0 and about 2 degrees on timescales of thousands of years. [85]