S/2022 J 3

S/2022 J 3 is a small outer natural satellite of Jupiter discovered by Scott S. Sheppard on 30 August 2022, using the 4.0-meter Víctor M. Blanco Telescope at Cerro Tololo Observatory, Chile. It was announced by the Minor 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 3 is part of the Ananke group, a cluster of retrograde irregular moons of Jupiter that follow similar orbits to Ananke at semi-major axes between 19–22 million km (12–14 million mi), orbital eccentricities between 0.1 and 0.4, and inclinations between 139 and 155°.^[4] It has a diameter of about 1 km (0.62 mi) for an absolute magnitude of 17.3.^[4] The moon has been observed for over 20 years, with the earliest known observation on 26 February 2003.^[2]

References

^ ^a ^b "MPEC 2023-D46 : S/2022 J 3". Minor Planet Electronic Circulars. Minor Planet Center. 22 February 2023. Retrieved 22 February 2023.
^ ^a ^b ^c "MPEC 2024-D118 : S/2022 J 3". Minor Planet Electronic Circulars. Minor Planet Center. 23 February 2024. Retrieved 23 February 2024.
^ "Planetary Satellite Discovery Circumstances". JPL Solar System Dynamics. NASA. Retrieved 22 February 2023.
^ ^a ^b ^c ^d ^e Sheppard, Scott S. "Moons of Jupiter". Earth & Planets Laboratory. Carnegie Institution for Science. Retrieved 22 February 2023.

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