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The Pasiphae group is a group of retrograde irregular satellites of Jupiter that follow similar to Pasiphae and are thought to have a common origin.
Their semi-major axis (distances from Jupiter) range between 22.6 and 24.3 million km (similar range as the Carme group), their between 141.5° and 157.3°, and their eccentricities between 0.22 and 0.44.
The members of the Pasiphae group are (in order by date announcement):Scott S. Sheppard, David C. Jewitt, Carolyn Porco Jupiter's outer satellites and Trojans, In: Jupiter. The planet, satellites and magnetosphere. Edited by Fran Bagenal, Timothy E. Dowling, William B. McKinnon. Cambridge planetary science, Vol. 1, Cambridge, UK: Cambridge University Press, , 2004, p. 263 - 280 Full text(pdf).
| largest member and group prototype |
| red colour |
| reddish colour |
| reddish colour |
The International Astronomical Union (IAU) reserves names ending in -e for all retrograde moons.
Unlike the Carme group and , the theory of a single impact origin for the Pasiphae group is not accepted by all studies. This is because the Pasiphae group, while similar in semi-major axis, is more widely dispersed in inclination. Alternatively, Sinope might be not a part of the remnants of the same collision and captured independently instead.Grav, Tommy; Holman, Matthew J.; Gladman, Brett J.; Kaare Aksnes Photometric survey of the irregular satellites, Icarus, 166,(2003), pp. 33-45. Preprint The differences in color class between the objects (grey for Pasiphae, light red for Callirrhoe and Megaclite) also suggest that the group could have a more complex origin than a single collision.
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