S/2021 J 5
| Discovery[1] | |
|---|---|
| Discovered by | Scott S. Sheppard David J. Tholen Chad Trujillo |
| Discovery site | Mauna Kea Obs. |
| Discovery date | 5 September 2021 |
| Orbital characteristics[1][2] | |
| Epoch 25 February 2023 (JD 2460000.5) | |
| Observation arc | 1.11 yr (405 d) |
| 0.1526210 AU (22,831,780 km) | |
| Eccentricity | 0.2001547 |
| –1.93 yr (–704.80 days) | |
| 329.67857° | |
| 0° 30m 38.821s / day | |
| Inclination | 163.17500° (to ecliptic) |
| 249.95820° | |
| 32.01323° | |
| Satellite of | Jupiter |
| Physical characteristics | |
Mean diameter | ≈2 km[3] |
| 23.6[3] | |
| 16.8[1] | |
S/2021 J 5 is a small outer natural satellite of Jupiter discovered by Scott S. Sheppard, David J. Tholen, and Chad Trujillo on 5 September 2021, using the 8.2-meter Subaru Telescope at Mauna Kea Observatory, Hawaii. It was announced by the Minor Planet Center on 19 January 2023, after observations were collected over a long enough time span to confirm the satellite's orbit.[1]
S/2021 J 5 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 0.2–0.3, and inclinations between 163–166°.[3] It has a diameter of about 2 km (1.2 mi) for an absolute magnitude of 16.8.[3]
References
- ↑ 1.0 1.1 1.2 1.3 "MPEC 2023-B41 : S/2021 J 5". Minor Planet Electronic Circulars. Minor Planet Center. 19 January 2023. Retrieved 20 January 2023.
- ↑ "Planetary Satellite Discovery Circumstances". JPL Solar System Dynamics. NASA. Retrieved 10 January 2023.
- ↑ 3.0 3.1 3.2 3.3 Sheppard, Scott S. "Moons of Jupiter". Earth & Planets Laboratory. Carnegie Institution for Science. Retrieved 10 January 2023.
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