Uranus · natural satellite

Miranda

Cliffs and contrasting terrain

Voyager 2 revealed Miranda’s patchwork of cratered plains, ridges and large regions called coronae during its 1986 encounter with Uranus.

Mean diameter: 471.6 km
Mean orbital distance: 129,846 km from centre
Orbital period: 1.413 Earth days

Miranda · NASA spacecraft imagery — NASA/JPL · Image source ↗

Compared with our Moon

Miranda · 471.6 km

Moon · 3,474.8 km

One diameter scale. Circle shapes compare volume-equivalent diameters; irregular moons are not spheres.

Orbit & discovery

Surface gravity: 0.077 m/s²
Discovery: 1948
Discoverer / team: G. Kuiper
Provisional designation: —
JPL satellite ID: 705
Orbital eccentricity: 0.001
Inclination: 4.4 degrees

Inclination reference: equatorial. Mean-element epoch: 2000-01-01.5 TDB · URA182.

Diameters use volume-equivalent mean radii, including for irregular bodies. Mean orbital elements describe an orbit; they are not live positions. Missing physical measurements remain unavailable.

Physical measurements & uncertainties

Mean radius · km: 235.8 ±0.7 [1]
GM · km³/s²: 4.3 ±0.2 [URA111]
Density · g/cm³: 1.178 ±0.053 [*]

Missions in the Uranus system · 1 records

1 launches · 0 linked events

These records cover the planetary system. A system mission did not necessarily visit this moon. Dedicated targets are marked separately; programme events include the journey and briefings. Launch outcomes do not establish arrival, landing success or present spacecraft operation.

Dedicated targets only

PLANETARY SYSTEM

Voyager 2

August 20, 1977 · UTC

Lockheed Martin · Titan IIIE

1 records from the complete 9,386‑record production catalogue.

Sources & measurements