Uranus
29 recognized moons
Illustrated moon positions
Loading 3D view…
Bodies to scale · Distances compressed · Major orbits shown
Ice giant
Uranus
Uranus is an ice giant with an extreme axial tilt. It rotates almost on its side as it travels around the Sun.
- Mean diameter
- 50,724 km
- Year
- 84 Earth years
- Mean distance from Sun
- 19.19 AU
Natural satellite
Ariel
Voyager 2 photographed Ariel’s bright surface and deep canyons in 1986. Much of the northern hemisphere was unlit during that encounter.
- Mean diameter
- 1,158 km
- Orbital period
- 2.52 Earth days
- Mean distance from parent
- 190,929 km
Reference diameter; no global surface map is available here.
Natural satellite
Umbriel
Umbriel is darker than the other large Uranian moons. Voyager 2 photographed its southern hemisphere, including a conspicuous bright ring near the equator.
- Mean diameter
- 1,169 km
- Orbital period
- 4.144 Earth days
- Mean distance from parent
- 265,986 km
Reference diameter; no global surface map is available here.
Natural satellite
Titania
Voyager 2 images show Titania’s impact craters and long faults. Its large canyon systems record extension of the icy crust.
- Mean diameter
- 1,578 km
- Orbital period
- 8.706 Earth days
- Mean distance from parent
- 436,298 km
Reference diameter; no global surface map is available here.
Natural satellite
Oberon
Voyager 2 photographed Oberon’s cratered surface in 1986. Some craters have bright rays and dark material on their floors.
- Mean diameter
- 1,523 km
- Orbital period
- 13.463 Earth days
- Mean distance from parent
- 583,511 km
Reference diameter; no global surface map is available here.
Natural satellite
Miranda
Voyager 2 revealed Miranda’s patchwork of cratered plains, ridges and large regions called coronae during its 1986 encounter with Uranus.
- Mean diameter
- 472 km
- Orbital period
- 1.413 Earth days
- Mean distance from parent
- 129,846 km
Reference diameter; no global surface map is available here.
Natural satellite
Cordelia
- Mean diameter
- Unavailable
- Orbital period
- 0.335 Earth days
- Mean distance from parent
- 49,755 km
Point marker: a reference diameter is unavailable.
Natural satellite
Ophelia
- Mean diameter
- Unavailable
- Orbital period
- 0.376 Earth days
- Mean distance from parent
- 53,765 km
Point marker: a reference diameter is unavailable.
Natural satellite
Bianca
- Mean diameter
- Unavailable
- Orbital period
- 0.435 Earth days
- Mean distance from parent
- 59,170 km
Point marker: a reference diameter is unavailable.
Natural satellite
Cressida
- Mean diameter
- Unavailable
- Orbital period
- 0.464 Earth days
- Mean distance from parent
- 61,770 km
Point marker: a reference diameter is unavailable.
Natural satellite
Desdemona
- Mean diameter
- Unavailable
- Orbital period
- 0.474 Earth days
- Mean distance from parent
- 62,663 km
Point marker: a reference diameter is unavailable.
Natural satellite
Juliet
- Mean diameter
- Unavailable
- Orbital period
- 0.493 Earth days
- Mean distance from parent
- 64,362 km
Point marker: a reference diameter is unavailable.
Natural satellite
Portia
- Mean diameter
- Unavailable
- Orbital period
- 0.513 Earth days
- Mean distance from parent
- 66,101 km
Point marker: a reference diameter is unavailable.
Natural satellite
Rosalind
- Mean diameter
- Unavailable
- Orbital period
- 0.558 Earth days
- Mean distance from parent
- 69,930 km
Point marker: a reference diameter is unavailable.
Natural satellite
Belinda
- Mean diameter
- Unavailable
- Orbital period
- 0.624 Earth days
- Mean distance from parent
- 75,258 km
Point marker: a reference diameter is unavailable.
Natural satellite
Puck
- Mean diameter
- Unavailable
- Orbital period
- 0.762 Earth days
- Mean distance from parent
- 86,007 km
Point marker: a reference diameter is unavailable.
Natural satellite
Caliban
- Mean diameter
- Unavailable
- Orbital period
- 580 Earth days
- Mean distance from parent
- 7,167,000 km
Point marker: a reference diameter is unavailable.
Natural satellite
Sycorax
- Mean diameter
- Unavailable
- Orbital period
- 3.5 Earth years
- Mean distance from parent
- 12,193,200 km
Point marker: a reference diameter is unavailable.
Natural satellite
Prospero
- Mean diameter
- Unavailable
- Orbital period
- 5.4 Earth years
- Mean distance from parent
- 16,221,000 km
Point marker: a reference diameter is unavailable.
Natural satellite
Setebos
- Mean diameter
- Unavailable
- Orbital period
- 6.1 Earth years
- Mean distance from parent
- 17,519,800 km
Point marker: a reference diameter is unavailable.
Natural satellite
Stephano
- Mean diameter
- Unavailable
- Orbital period
- 677 Earth days
- Mean distance from parent
- 7,951,400 km
Point marker: a reference diameter is unavailable.
Natural satellite
Trinculo
- Mean diameter
- Unavailable
- Orbital period
- 749 Earth days
- Mean distance from parent
- 8,502,600 km
Point marker: a reference diameter is unavailable.
Natural satellite
Francisco
- Mean diameter
- Unavailable
- Orbital period
- 267 Earth days
- Mean distance from parent
- 4,275,700 km
Point marker: a reference diameter is unavailable.
Natural satellite
Margaret
- Mean diameter
- Unavailable
- Orbital period
- 4.5 Earth years
- Mean distance from parent
- 14,425,000 km
Point marker: a reference diameter is unavailable.
Natural satellite
Ferdinand
- Mean diameter
- Unavailable
- Orbital period
- 7.6 Earth years
- Mean distance from parent
- 20,421,400 km
Point marker: a reference diameter is unavailable.
Natural satellite
Perdita
- Mean diameter
- Unavailable
- Orbital period
- 0.638 Earth days
- Mean distance from parent
- 76,418 km
Point marker: a reference diameter is unavailable.
Natural satellite
Mab
- Mean diameter
- Unavailable
- Orbital period
- 0.923 Earth days
- Mean distance from parent
- 97,737 km
Point marker: a reference diameter is unavailable.
Natural satellite
Cupid
- Mean diameter
- Unavailable
- Orbital period
- 0.613 Earth days
- Mean distance from parent
- 74,396 km
Point marker: a reference diameter is unavailable.
Natural satellite
S/2025 U1
- Mean diameter
- Unavailable
- Orbital period
- 0.42 Earth days
- Mean distance from parent
- 57,844 km
Point marker: a reference diameter is unavailable.
Natural satellite
S/2023 U1
- Mean diameter
- Unavailable
- Orbital period
- 681 Earth days
- Mean distance from parent
- 7,976,600 km
Point marker: a reference diameter is unavailable.
29 of 29 moons have a mean orbital reference here. Inner system covers mean distances within 80 parent radii. Locations along the orbits are illustrated, not current ephemerides.
About this view & sources
Measured body diameters share one scale. Moon distances are compressed separately. Point markers identify moons without a measured diameter; they are not scaled spheres.
Illustrated orbital arrangement, not current moon positions. Published mean semimajor axes, eccentricities and inclinations define the reference orbits. Complete orientation and phase are unavailable in this projection; marker locations are illustrative. The local orbital plane is schematic.
Planet maps show representative appearances, not current photographs. The Sun uses an actual NASA JPL SDO/STEREO 2012 mosaic at 304 Å: false-colour ultraviolet imaging of the chromosphere, not visible-light colour or current activity. Its glow is illustrative.
Inner system: satellites with a mean orbital distance within 80 parent-planet radii. All moons retains every source member and plots every available orbit.
Surface maps are representative NASA/JPL/Caltech/USGS mosaics, with source-image gaps and cleanup. All available moon positions are plotted; only major orbits are drawn together. Outlined marks locate small moons. Solid dots identify unavailable diameters. Small moons with known diameters use reference spheres for size, not detailed shape models.
- JPL · approximate planetary positions, 1800–2050 ↗
- JPL · planetary physical parameters ↗
- NASA · the eight planets ↗
- NASA · Sun facts ↗
- Mercury · NASA Visualization Technology Applications and Development (VTAD) ↗
- Venus · NASA Visualization Technology Applications and Development (VTAD) ↗
- Jupiter · NASA Visualization Technology Applications and Development (VTAD) ↗
- Saturn · NASA Visualization Technology Applications and Development (VTAD) ↗
- Uranus · NASA Visualization Technology Applications and Development (VTAD) ↗
- Neptune · NASA Visualization Technology Applications and Development (VTAD) ↗
- Earth · NASA Visible Earth · Blue Marble ↗
- Mars · NASA/JPL/USGS · NASA Trek ↗
- NASA JPL SDO/STEREO 304 Å Carrington mosaic (2012; false colour) ↗
- JPL · IAU-recognized satellite discoveries ↗
- JPL · physical parameters and uncertainties ↗
- JPL · mean orbital elements ↗
- NASA NSSDCA · Jovian sidereal orbital periods ↗
