Hermippe , also known as , is a

natural satellite A natural satellite is, in the most common usage, an astronomical body that orbits a planet, dwarf planet, or small Solar System body (or sometimes another natural satellite). Natural satellites are colloquially referred to as moons, a deriv ...

Jupiter Jupiter is the fifth planet from the Sun and the List of Solar System objects by size, largest in the Solar System. It is a gas giant with a Jupiter mass, mass more than 2.5 times that of all the other planets in the Solar System combined a ...

. It was discovered concurrently with Eurydome by a team of astronomers from the Institute for Astronomy of the

University of Hawaii A university () is an educational institution, institution of tertiary education and research which awards academic degrees in several Discipline (academia), academic disciplines. ''University'' is derived from the Latin phrase , which roughly ...

led by David Jewitt and Scott S. Sheppard and

Jan Kleyna Jan T. Kleyna is a postdoctoral astronomy researcher at the University of Hawaiʻi The University of Hawaiʻi System is a public college and university system in Hawaii. The system confers associate, bachelor's, master's, and doctoral degre ...

in 2001, and given the temporary designation .MPEC 2002-J54: ''Eleven New Satellites of Jupiter''
May 15, 2002 (discovery and ephemeris) Hermippe is about 4 kilometres in diameter, and orbits Jupiter at an average distance of 21,500,000 kilometers in about 630 days, at an

inclination Orbital inclination measures the tilt of an object's orbit around a celestial body. It is expressed as the angle between a reference plane and the orbital plane or axis of direction of the orbiting object. For a satellite orbiting the Eart ...

of 151° to the

ecliptic The ecliptic or ecliptic plane is the orbital plane of Earth's orbit, Earth around the Sun. It was a central concept in a number of ancient sciences, providing the framework for key measurements in astronomy, astrology and calendar-making. Fr ...

(149° to Jupiter's equator), in a retrograde direction and with an

eccentricity Eccentricity or eccentric may refer to: * Eccentricity (behavior), odd behavior on the part of a person, as opposed to being "normal" Mathematics, science and technology Mathematics * Off-Centre (geometry), center, in geometry * Eccentricity (g ...

of 0.2290. It was named in August 2003 by the

IAU The International Astronomical Union (IAU; , UAI) is an international non-governmental organization (INGO) with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach, education, and developmen ...

, after Hermippe, a lover of

Zeus Zeus (, ) is the chief deity of the List of Greek deities, Greek pantheon. He is a sky father, sky and thunder god in ancient Greek religion and Greek mythology, mythology, who rules as king of the gods on Mount Olympus. Zeus is the child ...

(Jupiter).IAUC 8177: ''Satellites of Jupiter, Saturn, Uranus''
2003 August (naming the moon) Hermippe belongs to the Ananke group, retrograde irregular moons which orbit Jupiter between 19.3 and , at inclinations of roughly 150°. Hermippe-Eurydome-discovery

References

External links

Jupiter's Known Satellites
(by Scott S. Sheppard)
New Jupiter Satellite Movie Images
(image)

{{DEFAULTSORT:Hermippe (Moon) Ananke group Irregular satellites Moons of Jupiter Discoveries by Scott S. Sheppard Discoveries by David C. Jewitt Discoveries by Jan Kleyna 20011209 Moons with a retrograde orbit