Callirrhoe (moon)
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Callirrhoe (kə-lirr'-oe-ee, IPA: [kəˈlɪrəʊi]; Greek Καλλιρρόη), or Jupiter XVII, is one of Jupiter's outermost named natural satellites. It was discovered by Spacewatch on October 6, 1999 and originally designated as an asteroid (1999 UX18). It was discovered to be in orbit around Jupiter by Tim Spahr on July 18, 2000, and then given the designation S/1999 J 1.
Callirrhoe is about 8.6 kilometres in diameter, and orbits Jupiter at an average distance of 24,356 Mm in 776.543 days, at an inclination of 141° to the ecliptic (140° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.264.
It belongs to the Pasiphaë group, irregular retrograde moons orbiting Jupiter at distances ranging between 22.8 and 24.1 Gm, and with inclinations ranging between 144.5° and 158.3°.
As a navigation exercise, the New Horizons spacecraft imaged it on January 10, 2007.
[edit] External links
- IAU Circular No. 7460 [1] describing the discovery
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Listed in increasing distance from Jupiter. Italics indicate ungrouped moons.
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| Amalthea group | Metis · Adrastea · Amalthea · Thebe |
| Galilean moons | Io · Europa · Ganymede · Callisto |
| Themisto | |
| Himalia group | Leda · Himalia · Lysithea · Elara · S/2000 J 11 |
| Carpo · S/2003 J 12 | |
| Ananke group | Ananke · Praxidike · Harpalyke · Iocaste · Euanthe · Thyone (core) Euporie · S/2003 J 3 · S/2003 J 18 · Thelxinoe · Helike · Orthosie · S/2003 J 16 · Hermippe · Mneme · S/2003 J 15 (peripheral) |
| Carme group | S/2003 J 17 · S/2003 J 10 · Pasithee · Chaldene · Arche · Isonoe · Erinome · Kale · Aitne · Taygete · S/2003 J 9 · Carme · S/2003 J 5 · S/2003 J 19 · Kalyke · Eukelade · Kallichore |
| Pasiphaë group | Eurydome · S/2003 J 23 · Hegemone · Pasiphaë · Sponde · Cyllene · Megaclite · S/2003 J 4 · Callirrhoe · Sinope · Autonoe · Aoede · Kore |
| S/2003 J 2 | |
