| Chaldene | |
| Adjective: | Chaldenean |
| Named After: | Χαλδηνή Chaldēnē |
| Mpc Name: | Jupiter XXI |
| Alt Names: | S/2000 J 10 |
| Discovery Ref: |   |
| Discoverer: | Scott S. Sheppard David C. Jewitt Yanga R. Fernandez Eugene A. Magnier |
| Discovered: | 23 November 2000 |
| Orbit Ref: |   |
| Epoch: | 27 April 2019 (JD 2458600.5) |
| Observation Arc: | 17.46 yr (6,376 days) |
| Eccentricity: | 0.1500864 |
| Period: | –759.88 d |
| Mean Motion: | / day |
| Inclination: | 164.25379° (to ecliptic) |
| Asc Node: | 215.26817° |
| Arg Peri: | 340.66981° |
| Mean Diameter: | 4 km |
| Albedo: | 0.04 (assumed) |
| Magnitude: | 22.5 |
| Abs Magnitude: | 16.0 |
Chaldene, also known as , is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard, in 2000, and given the temporary designation .[1] [2] [3]
Chaldene is about 3.8 kilometres in diameter, and orbits Jupiter at an average distance of 22,713,000 km in 759.88 days, at an inclination of 167° to the ecliptic (169° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.2916.
It was named in October 2002 after Chaldene, the mother of Solymos by Zeus in Greek mythology.[4]
It belongs to the Carme group, made up of irregular retrograde moons orbiting Jupiter at a distance ranging between 23 and 24 Gm and at an inclination of about 165°.