Enceladus
Enceladus is a natural satellite of Saturn, with an icy surface and plumes of water vapour erupting from its south pole.
How big is it?
504.2 km across
Mean diameter · approximate
A little perspective
About 1.27 times the mean diameter of Mimas.
Mimas: Mimas is an icy moon of Saturn, visually dominated by the large Herschel impact crater.
Measurements, assumptions & sources +
Enceladus
Rounded mean-radius model of Enceladus. The derived area and volume describe a sphere; surface terrain and flattening are omitted.
NASA JPL — Planetary satellite physical parameters
The marked mean diameter is calibrated. Unmeasured illustration details are representative.
Mimas
Saturn’s moon Mimas is about 396 km across and dominated visually by Herschel crater. The diameter is a mean for an imperfect sphere.
NASA JPL — Planetary satellite physical parameters
The marked mean diameter is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 504.2 km
For comparison, this page uses mean diameter. This is labelled approximate; the central value is useful for comparison, while real values or measurement solutions can vary.
Rounded mean-radius model of Enceladus. The derived area and volume describe a sphere; surface terrain and flattening are omitted.
The marked horizontal span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
Enceladus dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 504.2 km | Not recorded | approximate | |
| 798,600 km² | Not recorded | derived | |
| 67,110,000 km³ | Not recorded | derived | |
| 1.08 × 10¹⁷ t | Not recorded | derived | |
| 0.1135 m/s² | Not recorded | derived |
Around this scale
Go smaller. Go bigger.
These links use compatible length records, ordered around the selected value.
Nearest lower value · PlacesYarlung Tsangpo Grand Canyon504 kmThe Yarlung Tsangpo Grand Canyon is a deep river gorge in Tibet, following the Yarlung Tsangpo River through the Himalayas.Around the same scale · TransportFive-hour drive at 100 km/h500 kmA five-hour drive at a set speed is the distance a vehicle covers in five hours of continuous travel without breaks.Nearest higher value · PlacesSeine777 kmThe Seine is a river in northern France that passes through Paris and flows into the English Channel.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- NASA JPL — Planetary satellite physical parametersPublished mean radii and gravitational parameters GM. Spherical areas, volumes, masses and local gravity are explicitly derived.
More ways to see it
Curated comparisons
There’s always another scale
Follow your curiosity.
SpaceMoon3,475 kmThe Moon is Earth’s natural satellite and the brightest large object in Earth’s night sky.
SpaceEarth12,740 kmEarth is the rocky planet on which we live and the third planet from the Sun.
SpacePluto2,377 kmPluto is a dwarf planet in the Kuiper Belt, composed of rock and ice and orbiting the Sun.
SpaceJupiter139,800 kmJupiter is a giant planet composed mainly of hydrogen and helium, orbiting the Sun beyond the asteroid belt.
SpaceMimas396.4 kmMimas is an icy moon of Saturn, visually dominated by the large Herschel impact crater.TransportFive-hour drive at 100 km/h500 kmA five-hour drive at a set speed is the distance a vehicle covers in five hours of continuous travel without breaks.
SpaceCharon1,212 kmCharon is a natural satellite of Pluto, composed mainly of rock and water ice.
SpaceCeres939.4 kmCeres is a dwarf planet located in the asteroid belt between Mars and Jupiter.