Quick facts
Parent planet
Diameter (mean)
80 km
Mass
3.4 × 10¹⁷ kg
4.6e-06 Moon masses
Mean orbital radius
61,770 km
Orbital period
0.464 Earth days
Discovery year
1986
Discoverer
Stephen P. Synnott (Voyager 2)
Naming origin
Heroine of Troilus and Cressida
Surface conditions
Cressida is one of the Portia-group inner moons of Uranus. The group's instability suggests Cressida may collide with another nearby moon within a few million years.
Missions and observations
Every Uranus-system mission has had an opportunity to image or characterize Cressida. The list below is the Uranus-system mission catalog; specific Cressida encounters are documented in mission archives.
| Mission | Year at Uranus | Status |
|---|---|---|
|
Voyager 2 NASA |
1986 | Completed |
Naming etymology
Cressida was the protagonist of Shakespeare's Troilus and Cressida — a Trojan woman whose love affair with Troilus is set against the background of the Trojan War. Adopted by the IAU in 1988.
Methodology & sources
Diameter, mass, and orbital parameters from JPL Solar System Dynamics — Physical Parameters. Discovery year and discoverer from the JPL Satellite Discovery Circumstances. Naming etymology from the IAU Working Group for Planetary System Nomenclature. Stylized SVG hero composed from NASA / JPL imagery as visual reference; no photographs are reproduced.