
Jupiter
Jupiter is a giant planet composed mainly of hydrogen and helium, orbiting the Sun beyond the asteroid belt.
139,800 kmMean diameterWorlds apart
What are they, and what does the difference actually look like?
Two things. One honest scale.
Meet the pair

Jupiter is a giant planet composed mainly of hydrogen and helium, orbiting the Sun beyond the asteroid belt.
139,800 kmMean diameter
The Sun is the star at the centre of the Solar System.
1,391,000 kmDiameterThe diameter of Sun is about 9.95 times the mean diameter of Jupiter.
Mean-radius spherical model for Jupiter; actual shape is not perfectly spherical. Gravity refers to a conventional atmospheric level, not solid ground.
NASA JPL — planetary physical parameters
The marked mean diameter is calibrated. Unmeasured illustration details are representative.
Our star, modelled with the IAU nominal solar radius. “Surface” means the visible photosphere. The core is much hotter; this is not a solid surface.
IAU — nominal solar and planetary conversion constants
The marked diameter is calibrated. Unmeasured illustration details are representative.
Change the comparison
Measurement details
The visual compares mean diameter with diameter. The records below preserve each value’s basis and caveats.
Mean diameter · approximate
Mean-radius spherical model for Jupiter; actual shape is not perfectly spherical. Gravity refers to a conventional atmospheric level, not solid ground.
Diameter · approximate
Our star, modelled with the IAU nominal solar radius. “Surface” means the visible photosphere. The core is much hotter; this is not a solid surface.
The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.
There’s always another scale
Side by side







