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 · mean diameter
Mean diameter · approximate
A little perspective
Enceladus vs Mimas: diameter comparison
The mean diameter of Enceladus is about 1.27 times the mean diameter of mimas.
Enceladus is a natural satellite of Saturn, with an icy surface and plumes of water vapour erupting from its south pole.
Mimas is an icy moon of Saturn, visually dominated by the large Herschel impact crater.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions.
Measurements, assumptions & sources +
Enceladus
Mean diameter: 504.2 km; approximate.
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
Mean diameter: 396.4 km; approximate; range 395 km–398 km.
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.
Use the visual comparison to explore its scale, then check the measurements and sources.
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Why this measurement?
Why we use 504.2 km
We compare the mean diameter of Enceladus. This is an estimate; check the notes for its rounding and uncertainty.
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 measured feature, not the edges of the image. How calibrated comparisons work →
Recorded properties
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
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valuePlaces and natural featuresYarlung Tsangpo Grand Canyon504 kmApproximate canyon lengthThe Yarlung Tsangpo Grand Canyon is a deep river gorge in Tibet, following the Yarlung Tsangpo River through the Himalayas.Around the same scaleVehicles and transportFive-hour drive at 100 km/h500 kmDistanceA five-hour drive at a set speed is the distance a vehicle covers in five hours of continuous travel without breaks.Nearest higher valuePlaces and natural featuresSeine777 kmApproximate main-channel lengthThe 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.