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S/2022 J 1

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Outer moon of Jupiter

S/2022 J 1 is a small outernatural satellite ofJupiter discovered byScott S. Sheppard on 30 August 2022, using the 4.0-meterVíctor M. Blanco Telescope atCerro Tololo Observatory,Chile. It was announced by theMinor Planet Center on 22 February 2023, after observations were collected over a long enough time span to confirm the satellite's orbit.^[1]

S/2022 J 1 is part of theCarme group, a tight cluster ofretrograde irregular moons of Jupiter that follow similar orbits toCarme atsemi-major axes between 22–24 million km (14–15 million mi),orbital eccentricities between 0.2 and 0.3, andinclinations between 163 and 166°.^[4] It has a diameter of about 2 km (1.2 mi) for anabsolute magnitude of 17.0.^[4] The moon has been observed for over 20 years, with the earliest known observation on 24 February 2003.^[2]

^^a ^b ^c"MPEC 2023-D44 : S/2022 J 1".Minor Planet Electronic Circulars. Minor Planet Center. 22 February 2023. Retrieved22 February 2023.
^^a ^b ^c"MPEC 2024-D116 : S/2022 J 1".Minor Planet Electronic Circulars. Minor Planet Center. 23 February 2024. Retrieved23 February 2024.
^"Planetary Satellite Discovery Circumstances".JPL Solar System Dynamics. NASA. Retrieved22 February 2023.
^^a ^b ^c ^d ^eSheppard, Scott S."Moons of Jupiter".Earth & Planets Laboratory. Carnegie Institution for Science. Retrieved22 February 2023.

v t e Moons of Jupiter
Listed in increasing approximate distance from Jupiter
Inner moons	Metis Adrastea Amalthea Thebe
Galilean moons	Io Europa Ganymede Callisto
Themisto	Themisto
Himalia group (9)	Leda Ersa S/2018 J 2 Himalia Pandia Lysithea Elara S/2011 J 3 Dia
Carpo group (2)	S/2018 J 4 Carpo
Valetudo	Valetudo
Ananke group (26)	Euporie Jupiter LV Eupheme S/2021 J 3 Jupiter LII Jupiter LIV Mneme Euanthe S/2003 J 16 Harpalyke Orthosie S/2022 J 3 Helike S/2021 J 2 Praxidike Jupiter LXIV S/2021 J 1 S/2003 J 12 Jupiter LXVIII Thelxinoe Thyone S/2003 J 2 Ananke Iocaste Hermippe Jupiter LXX
Carme group (30)	S/2022 J 1 S/2022 J 2 S/2016 J 3 Pasithee Jupiter LXIX S/2021 J 6 S/2003 J 24 Chaldene Jupiter LXIII Isonoe S/2021 J 4 Kallichore Erinome Kale Eirene Aitne Eukelade Arche Taygete Jupiter LXXII Carme Herse Jupiter LXI Jupiter LI S/2003 J 9 Jupiter LXVI Kalyke S/2018 J 3 S/2021 J 5 S/2003 J 10
Pasiphae group (18)	Philophrosyne Eurydome Jupiter LVI S/2003 J 4 S/2016 J 4 Jupiter LXVII Hegemone Pasiphae Sponde Megaclite Cyllene Sinope Jupiter LIX Aoede Autonoe Callirrhoe S/2003 J 23 Kore
See also	Rings of Jupiter Jupiter's moons in fiction
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