Hyperion

Moon

An irregularly shaped, sponge-like moon of Saturn that tumbles chaotically rather than rotating predictably.

Facts

TypeMoon
OrbitsSaturn
Distance from parent body1,481,000 km
Diameter270 km
Mass5.60 × 10^18 kg
Surface gravity0.0203 m/s²
Temperature-180°C
Orbital period21 days
Rotation period312 hours
Apparent magnitude14.4
Redshift0
Discovered1848

Hyperion in context

At 270 km across, Hyperion is 7.8 percent of the diameter of Earth's Moon.

Its mass is less than a thousandth of the mass of Earth.

It orbits Saturn at 1,481,000 km, further out than the Moon orbits Earth.

A single orbit takes 21.3 days.

An average temperature of 93 K works out at -180 degrees Celsius, colder than the 15 degrees Earth averages.

It has been on record since 1848.

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