Gerd (Saturn LVII), provisionally known as S/2004 S 25, is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, and Jan Kleyna on October 7, 2019 from observations taken between December 12, 2004 and March 22, 2007.[3] It was given its permanent designation in August 2021.[4] On 24 August 2022, it was officially named after Gerðr, a jötunn from Norse mythology.[5] She is the wife of Freyr and the personification of fertile soil.[6]
Gerd is about 4 kilometres in diameter, and orbits Saturn at an average distance of 21.174 Gm in 1150.69 days, at an inclination of 173° to the ecliptic, in a retrograde direction and with an eccentricity of 0.442.[3]
^"Names Approved for 10 Small Satellites of Saturn". usgs.gov. USGS. 24 August 2022. Retrieved 30 August 2022.
^"Planet and Satellite Names and Discoverers". usgs.gov. IAU WGPSN. Retrieved 30 August 2022.
March 13, 2023
gerd, moon, gerd, saturn, lvii, provisionally, known, 2004, natural, satellite, saturn, discovery, announced, scott, sheppard, david, jewitt, kleyna, october, 2019, from, observations, taken, between, december, 2004, march, 2007, given, permanent, designation,. Gerd Saturn LVII provisionally known as S 2004 S 25 is a natural satellite of Saturn Its discovery was announced by Scott S Sheppard David C Jewitt and Jan Kleyna on October 7 2019 from observations taken between December 12 2004 and March 22 2007 3 It was given its permanent designation in August 2021 4 On 24 August 2022 it was officially named after Gerdr a jotunn from Norse mythology 5 She is the wife of Freyr and the personification of fertile soil 6 GerdDiscovery 1 Discovered bySheppard et al Discovery date2019DesignationsNamed afterGerdrAlternative namesSaturn LVIIS 2004 S 25S8631e 2 Orbital characteristics 2 Semi major axis20544 500 kmEccentricity0 457Orbital period sidereal 1095 0 daysInclination173 3 Satellite ofSaturnGroupNorse groupPhysical characteristicsMean diameter4 50 30 kmApparent magnitude25 2Gerd is about 4 kilometres in diameter and orbits Saturn at an average distance of 21 174 Gm in 1150 69 days at an inclination of 173 to the ecliptic in a retrograde direction and with an eccentricity of 0 442 3 References Edit Discovery Circumstances from JPL a b S S Sheppard 2019 Moons of Saturn Carnegie Science on line a b MPEC 2019 T132 S 2004 S 25 minorplanetcenter net Retrieved 7 October 2019 M P C 133821 PDF Minor Planet Center International Astronomical Union 10 August 2021 Retrieved 21 August 2021 Names Approved for 10 Small Satellites of Saturn usgs gov USGS 24 August 2022 Retrieved 30 August 2022 Planet and Satellite Names and Discoverers usgs gov IAU WGPSN Retrieved 30 August 2022 Retrieved from https en wikipedia org w index php title Gerd moon amp oldid 1132761235, wikipedia, wiki, book, books, library,
