Janus

Janus — moon orbiting Saturn, explore its interactive 3D model in Cosmoscope.

Explore Janus in a live 3D Solar System. Follow its calculated motion and inspect real astronomical data, distances and orbital facts.

The larger of the co-orbital twins, waltzing with Epimetheus in a gravitational do-si-do that has repeated every four years for millions of years.

Radius

89.5 km

Orbit

151k km from Saturn

Period

0.69 days

Shares an orbit

With Epimetheus

Swap

The two trade places every 4 years

Explore Janus in 3D

Cosmoscope places Janus in the Solar System using astronomical ephemeris or orbital elements, updated for the simulation time. Explore its calculated motion, distance and orbital facts in the interactive 3D view. Accuracy depends on the orbital model and its valid time range.