S/2019 S 1

S/2019 S 1 is a natural satellite of Saturn. Its discovery was announced by Edward Ashton, Brett J. Gladman, Jean-Marc Petit, and Mike Alexandersen on 16 November 2021 from Canada-France-Hawaii Telescope observations taken between 1 July 2019 and 14 June 2021.[1]

S/2019 S 1
Discovery[1]
Discovered byAshton et al.
Discovery date2019 (announced 2021)
Orbital characteristics [1]
11221100 km
Eccentricity0.623
443.78 days
Inclination44.4°
Satellite ofSaturn
GroupInuit group[2]
Physical characteristics
Mean diameter
5+2.5
−1.5 km
25.1

    S/2019 S 1 is about 5 kilometres in diameter, and orbits Saturn at an average distance of 11.2 million km (7.0 million mi) in 443.78 days, at an inclination of 44° to the ecliptic, in a prograde direction and with an eccentricity of 0.623.[1] It belongs to the Inuit group of prograde irregular satellites, and is among the innermost irregular satellites of Saturn.[2] It might be a collisional fragment of Kiviuq and Ijiraq, which share very similar orbital elements.[3]

    This moon's eccentric orbit takes it closer than 1.5 million km (0.93 million mi) to Iapetus several times per millennium.[3]

    References
    1. "MPEC 2021-W14 : S/2019 S 1". minorplanetcenter.net. Retrieved 16 November 2021.
    2. Ashton, Edward; Gladman, Brett; Beaudoin, Matthew; Alexandersen, Mike; Petit, Jean-Marc (October 2021). Detection biases favour retrograde over direct irregular moons. 53rd Annual DPS Meeting. American Astronomical Society. 308.09. Retrieved 17 November 2021.
    3. S/2019 S 1: Tilmann Denk


    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.