A | B | C | D | E | F | G | H | CH | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
Discovery[1] | |
---|---|
Discovered by | Scott S. Sheppard |
Discovery site | Cerro Tololo Obs. |
Discovery date | 30 August 2022 |
Orbital characteristics[2][3] | |
Epoch 31 March 2024 (JD 2460400.5) | |
Observation arc | 20.62 yr (7,530 d) |
Earliest precovery date | 24 February 2003 |
0.1588863 AU (23,769,050 km) | |
Eccentricity | 0.1357222 |
–2.05 yr (–748.64 days) | |
184.22280° | |
0° 28m 51.136s / day | |
Inclination | 165.94051° (to ecliptic) |
51.07021° | |
334.92072° | |
Satellite of | Jupiter |
Group | Carme group |
Physical characteristics | |
Mean diameter | ≈2 km[4] |
Albedo | 0.04 (assumed)[4] |
23.8 (average)[4] | |
17.0[1][2] | |
S/2022 J 1 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 1 is part of the Carme group, a tight cluster of retrograde irregular moons of Jupiter that follow similar orbits to Carme at semi-major axes between 22–24 million km (14–15 million mi), orbital eccentricities between 0.2 and 0.3, and inclinations between 163 and 166°.[4] It has a diameter of about 2 km (1.2 mi) for an absolute magnitude of 17.0.[4] The moon has been observed for over 20 years, with the earliest known observation on 24 February 2003.[2]
References
- ^ a b c "MPEC 2023-D44 : S/2022 J 1". Minor Planet Electronic Circulars. Minor Planet Center. 22 February 2023. Retrieved 22 February 2023.
- ^ a b c "MPEC 2024-D116 : S/2022 J 1". 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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