Isonoe (moon)

Isonoe
	Isonoe imaged by the Canada-France-Hawaii Telescope in December 2001
Discovery
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
	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
Mean diameter	4 km
Albedo	0.04 (assumed)
Spectral type	B–V = 0.78 ± 0.05, V–R = 0.53 ± 0.04
Apparent magnitude	22.5
Absolute magnitude (H)	16.0

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.^[6]^[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).^[7]

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

^ ^a ^b MPEC 2001-A28: S/2000 J 2, S/2000 J 3, S/2000 J 4, S/2000 J 5, S/2000 J 6 2001 January 5 (discovery and ephemeris)
^ ^a ^b "M.P.C. 115890" (PDF). Minor Planet Circular. Minor Planet Center. 27 August 2019.
^ "Planetary Satellite Physical Parameters". Jet Propulsion Laboratory. 19 February 2015. Retrieved 27 November 2020.
^ Graykowski, Ariel; Jewitt, David (5 April 2018). "Colors and Shapes of the Irregular Planetary Satellites". The Astronomical Journal. 155 (4): 184. arXiv:1803.01907. doi:10.3847/1538-3881/aab49b. ISSN 1538-3881.
^ Sheppard, Scott. "Scott S. Sheppard - Jupiter Moons". Department of Terrestrial Magnetism. Carnegie Institution for Science. Retrieved 27 November 2020.
^ IAUC 7555: Satellites of Jupiter Archived 2002-09-16 at the Wayback Machine 2001 January 5 (discovery)
^ IAUC 7998: Satellites of Jupiter 2002 October 22 (naming the moon)

[MPEC-2001-A28-1] MPEC 2001-A28: S/2000 J 2, S/2000 J 3, S/2000 J 4, S/2000 J 5, S/2000 J 6 2001 January 5 (discovery and ephemeris)

[MPC115890-2] "M.P.C. 115890" (PDF). Minor Planet Circular. Minor Planet Center. 27 August 2019.

[jpl-phys-3] "Planetary Satellite Physical Parameters". Jet Propulsion Laboratory. 19 February 2015. Retrieved 27 November 2020.

[GraykowskiJewitt2018-4] Graykowski, Ariel; Jewitt, David (5 April 2018). "Colors and Shapes of the Irregular Planetary Satellites". The Astronomical Journal. 155 (4): 184. arXiv:1803.01907. doi:10.3847/1538-3881/aab49b. ISSN 1538-3881.

[SheppardMoons-5] Sheppard, Scott. "Scott S. Sheppard - Jupiter Moons". Department of Terrestrial Magnetism. Carnegie Institution for Science. Retrieved 27 November 2020.

[6] IAUC 7555: Satellites of Jupiter Archived 2002-09-16 at the Wayback Machine 2001 January 5 (discovery)

[7] IAUC 7998: Satellites of Jupiter 2002 October 22 (naming the moon)

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Isonoe (moon)

References

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