Cordelia (moon)
From Freepedia
- For the asteroid of the same name, see 2758 Cordelia.
| Discovery | |||||||
|---|---|---|---|---|---|---|---|
| Discovered by | Richard J. Terrile / Voyager 2 | ||||||
| Discovered in | January 20, 1986 | ||||||
| Orbital characteristics | |||||||
| Mean radius | 49,752 km | ||||||
| Eccentricity | 0.00047 | ||||||
| Orbital period | 0.33503 d | ||||||
| Inclination | 0.147° (to Uranus' equator) | ||||||
| Is a satellite of | Uranus | ||||||
| Physical characteristics | |||||||
| Mean diameter | 40.2 km | ||||||
| Surface area | ~5080 km2 | ||||||
| Volume | ~34,000 km3 | ||||||
| Mass | 4.5×1016 kg | ||||||
| Mean density | ~1.3 g/cm3 | ||||||
| Surface gravity | ~0.0064 m/s2 | ||||||
| Escape velocity | ~0.017 km/s | ||||||
| Rotation period | synchronous | ||||||
| Axial tilt | zero | ||||||
| Albedo | 0.07 (assumed) | ||||||
| Surface temp. |
| ||||||
| Atmospheric pressure | 0 kPa | ||||||
Cordelia (kor-dee'-lee-a) is the innermost moon of Uranus. Apart from its orbital radius and dimensions, virtually nothing is known about it. It takes its name from the youngest daughter of Lear in William Shakespeare's King Lear.
It was discovered from the images taken by Voyager 2 on January 20, 1986, and was given the temporary designation S/1986 U 7. It is also designated Uranus VI.
Cordelia acts as the inner shepherd satellite for Uranus' epsilon ring. Cordelia's orbit is within Uranus' synchronous orbit radius, and is therefore slowly decaying due to tidal forces.
| Uranus' natural satellitesedit |
|---|
| Cordelia | Ophelia | Bianca | Cressida | Desdemona | Juliet | Portia | Rosalind | S/2003 U 2 | Belinda |
| S/1986 U 10 | Puck | S/2003 U 1 | Miranda | Ariel | Umbriel | Titania | Oberon | S/2001 U 3 |
| Caliban | Stephano | Trinculo | Sycorax | S/2003 U 3 | Prospero | Setebos | S/2001 U 2 |
