Isonoe

Isonoe imaged by the Canada-France-Hawaii Telescope in December 2001
Discovery  [1]
Discovered by	Scott S. Sheppard David C. Jewitt Yanga R. Fernandez Eugene A. Magnier
Discovery site	Mauna Kea Observatory
Discovery date	23 November 2000
Designations
Designation	Jupiter XXVI
Pronunciation	/aɪˈsɒnoʊ.iː/
Named after	Ισονόη Isonoē
Alternative names	S/2000 J 6
Adjectives	Isonoean /ˌaɪsənoʊˈiːən/
Orbital characteristics  [2]
Epoch 23 March 2018 ( JD 2458200.5)
Observation arc	17.46 yr (6,379 days)
Semi-major axis	0.1559024  AU (23,322,670 km)
Eccentricity	0.2263119
Orbital period (sidereal)	–688.61 d
Mean anomaly	148.53423 °
Mean motion	0° 31m 36.216s / day
Inclination	164.45891° (to ecliptic)
Longitude of ascending node	203.99552°
Argument of perihelion	219.75296°
Satellite of	Jupiter
Group	Carme group
Physical characteristics [3]
Mean diameter	4 km
Albedo	0.04 (assumed)
Apparent magnitude	22.5 [4]
Absolute magnitude (H)	16.0 [2]

Isonoe /aɪˈsɒnoʊ.iː/, also known as Jupiter XXVI, 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 S/2000 J 6. ^{[5] [1]}

Isonoe is about 4 kilometres in diameter, and orbits Jupiter at an average distance of 23,833,000 km in 688.61 days, at an inclination of 166° to the ecliptic (169° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.166.

It was named in October 2002 after Isonoe, one of the Danaïdes in Greek mythology, and a lover of Zeus (Jupiter). ^[6]

Isonoe 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°.

References