S/2019 S 21 is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, Edward Ashton, Brett J. Gladman, Jean-Marc Petit and Mike Alexandersen on May 16, 2023 from observations taken between February 2, 2006 and July 8, 2021.[2]
Discovery | |
---|---|
Discovered by | Scott S. Sheppard, David C. Jewitt, Jan Kleyna, Brett J. Gladman, E. Ashton |
Discovery date | 2019 |
Orbital characteristics | |
26,439,000 km (16,428,000 mi)[1] | |
Eccentricity | 0.155 |
-4.480 yrs (1,636.32 d)[1] | |
Inclination | 171.9° (to the ecliptic) |
Satellite of | Saturn |
Group | Norse group |
Physical characteristics | |
Mean diameter | 4 km |
16.2 | |
S/2019 S 21 is about 4 kilometers in diameter, and orbits Saturn at an average distance of 26.076 Gm in 1,572.06 days, at an inclination of 171.5, orbits in retrograde direction and eccentricity of 0.125.[2] S/2019 S 21 belongs to the Norse group and one of the most distant moons from Saturn along with S/2004 S 26, S/2004 S 52 and S/2020 S 9.[3]
References edit
- ^ a b c "Planetary Satellite Mean Elements". Jet Propulsion Laboratory. California Institute of Technology. Retrieved 16 May 2023.
- ^ a b c "MPEC 2023-K05 : S/2019 S 21". Minor Planet Electronic Circular. Minor Planet Center. Retrieved 16 May 2023.
- ^ a b "S/2019 S 21". Tilmann's Web Site. Tilmann Denk. Retrieved 24 December 2023.
🔥 Top keywords: Akademia e Shkencave e RPS te ShqiperiseAlexandria Ocasio-CortezBilderberg GroupCristiano RonaldoDong XiaowanMinecraftOperation GladioPrimal cutRiot FestStrictly Come Dancing (series 7)Main PageSpecial:SearchWikipedia:Featured picturesYasukeBridgertonScottie SchefflerHarrison ButkerMegalopolis (film)CleopatraDeaths in 2024Cassie VenturaIt Ends with UsYouTubeXXXTentacionYoung SheldonDabney ColemanSwati MaliwalHeeramandi2024 Indian general electionNew CaledoniaKingdom of the Planet of the ApesNicola CoughlanSean CombsHit Me Hard and SoftBillie EilishList of Young Sheldon episodesJasmine CrockettAmy WinehouseIF (film)Kepler's SupernovaList of Bridgerton charactersXXX: Return of Xander CageBaby ReindeerOleksandr UsykLuke NewtonCharlize TheronMicrosoft OfficeDarren DutchyshenAnthony Edwards (basketball)