Arche (moon)
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Arche (ar'-kee, Greek Αρχη) (Jupiter XLIII) is a moon of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2002, and received the temporary designation S/2002 J 1. Arche is about 3 kilometres in diameter, and orbits Jupiter at an average distance of 23,717 Mm in 746.185 days, at an inclination of 172° to the ecliptic (146° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.149.
It is named after Arche, whom some Greek writers described as one of the four original Muses, an addition to the earlier three (Aoede, Melete, and Mneme).
Arche 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°.
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| Metis | Adrastea | Amalthea | Thebe | Io | Europa | Ganymede | Callisto | Themisto | Leda | Himalia | Lysithea | Elara | S/2000 J 11 | Carpo | S/2003 J 12 | Euporie | S/2003 J 3 | S/2003 J 18 | Thelxinoe | Euanthe | Helike | Orthosie | Iocaste | S/2003 J 16 | Ananke | Praxidike | Harpalyke | Hermippe | Thyone | Mneme | S/2003 J 17 | Aitne | Kale | Taygete | S/2003 J 19 | Chaldene | S/2003 J 15 | S/2003 J 10 | S/2003 J 23 | Erinome | Aoede | Kallichore | Kalyke | Eurydome | S/2003 J 14 | Pasithee | Cyllene | Eukelade | S/2003 J 4 | Hegemone | Arche | Carme | Isonoe | S/2003 J 9 | S/2003 J 5 | Pasiphaë | Sinope | Sponde | Autonoe | Callirrhoe | Megaclite | S/2003 J 2 |
| Amalthea group | Galilean moons | Himalia group | Ananke group | Carme group | Pasiphaë group |