Every world / Moon of Saturn

Iapetus

Outline The numbers here are measured. The rest of this page is being written.

The path of Iapetus round Saturn, seen from above and drawn to scale, with the white dot at its nearest point. Orbit from NASA/JPL Solar System Dynamics, planetary satellites.

Kind: Moon of Saturn
Distance: 3,561,700 km from Saturn on average
Once round: 79.33 days
Path: a slightly stretched circle (eccentricity 0.028), tilted 7.59°
Size: 1,469 km across, 42.3 per cent of our Moon’s width
Density: 1.09 times water
Found: 1671, by G.D. Cassini

Saturn On the atlas In 3D

Iapetus, our Moon and Saturn, drawn to one scale from their measured sizes, as plain discs.

Still being written

What it looks like up close
What it is made of
How it was found
Spacecraft that have seen it
What is still unknown

Sources: NASA/JPL Solar System Dynamics, planetary satellites.