The calculation of the mass of the planets is outside the scope of this entry.
Both for measure the mass of the Solar System planets as for measure the mass of other different types objects and planets of this and other solar systems, we use as reference the mass of the Earth.
Thereby, for heavier planets or stelar objects, the value will be greater than 1. Whereas that for lighter ones the value will be smaller than 1.
And only if has the same mass as the Earth, the mass value will be 1.
But what's the real value (in kilograms) that represents the mass of the Earth as 1?
The response is, aproximately 5,9 x 1024 kg
In this way, all masses will be expressed related to the Earth mass. The mass unit is "Earth"
I list here some interesting masses:
Object | Type | (Relative mass aproximately) Earth |
The Sun | Star | 333000 |
Mercury | Terrestrial Planet | 0,06 |
Venus | Terrestrial Planet | 0,82 |
Earth | Terrestrial Planet | 1 |
Mars | Terrestrial Planet | 0,11 |
Jupiter | Gas Giant Planet | 317,8 |
Saturn | Gas Giant Planet | 95,2 |
Uranus | Gas Giant Planet | 14,6 |
Neptune | Gas Giant Planet | 17,2 |
Ceres | Dwarf Planet | 0,00016 |
Pluto | Dwarf Planet | 0,82 |
Haumea | Dwarf Planet | 0,0007 |
Makemake | Dwarf Planet | 0,0007 |
Eris | Dwarf Planet | 0,0028 |
The Moon | Natural Satellite | 0.0123 |
More information:
- An interesting NASA site with a didactic tool that allows user to compare the mass of two Solar System objects using a balance: Click here to go
- Bibliography:
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