Margaret
Moon· orbits Uranus
Margaret — moon of Uranus.
Open in 3D viewSee Margaret in the live, interactive 3D map
Key facts
Radius
10 km
1% of our Moon's radius
Orbit around Uranus
4.51 Earth years
1,646 Earth days
Science
Physical
- Radius (estimated)
- 10 km · 1% of our Moon's radius
- Sized from its brightness assuming a dark (~0.04) surface — never resolved, so the true diameter (~20 km) could be off by a factor of two.
Orbit around Uranus
- Distance from Uranus
- 14,369,449 km
- From JPL orbital elements
- Orbital period
- 4.51 years
- From JPL orbital elements
- Eccentricity
- 0.8661
- From JPL orbital elements
- Inclination to the J2000 equator
- 72.54 °
- From JPL orbital elements
Radiation & temperature
- Insolation
- 0.00266 S⊕ · 1/376 of the sunlight Earth receives
- Computed from the distance to the Sun (inverse-square; Earth's sunlight = 1), before any atmosphere.
Discovery & history
- By
- S.S. Sheppard, D.C. Jewitt
Margaret was discovered in 2003 by S.S. Sheppard and D.C. Jewitt. Uranus's moons are named after characters from the plays of Shakespeare and the poetry of Alexander Pope. Beyond its discovery and naming, little more about it has been individually recorded.
Images
No resolved image of this moon has been released: telescopes and passing spacecraft have recorded it only as a faint point of light.