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Norse Group
The Norse group is a large group of Retrograde and prograde motion, retrograde irregular satellites of Saturn. Their semi-major axis, semi-major axes range between 12 and 27 Gm, their inclinations between 136° and 178° and their Orbital eccentricity, eccentricities between 0.06 and 0.63. Unlike the Inuit group, Inuit and Gallic groups, the orbital parameters are widely dispersed and the group is likely to be composed from a number of subgroups with more homogeneous orbital and physical parameters. The International Astronomical Union (IAU) reserves names taken from Norse mythology (mostly giants) for the satellites, with the exception of Phoebe (Greek mythology), the largest, which was discovered long before the others. The discovery of 17 new satellites in this group was announced in October 2019. A team led by Scott S. Sheppard using the Subaru Telescope at Mauna Kea discovered 20 new moons, each about in diameter. 17 of these are thought to fit into the Norse group. One of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saturn Irregular Moon Orbits A Vs
Saturn is the sixth planet from the Sun and the second largest in the Solar System, after Jupiter. It is a gas giant, with an average radius of about 9 times that of Earth. It has an eighth the average density of Earth, but is over 95 times more massive. Even though Saturn is almost as big as Jupiter, Saturn has less than a third its mass. Saturn orbits the Sun at a distance of , with an orbital period of 29.45 years. Saturn's interior is thought to be composed of a rocky core, surrounded by a deep layer of metallic hydrogen, an intermediate layer of liquid hydrogen and liquid helium, and an outer layer of gas. Saturn has a pale yellow hue, due to ammonia crystals in its upper atmosphere. An electrical current in the metallic hydrogen layer is thought to give rise to Saturn's planetary magnetic field, which is weaker than Earth's, but has a magnetic moment 580 times that of Earth because of Saturn's greater size. Saturn's magnetic field strength is about a twentieth tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S/2006 S 9
S/2006 S 9 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 3, 2023 from observations taken between February 1, 2006 and July 1, 2021. S/2006 S 9 is about 3 kilometers in diameter, and orbits Saturn at a distance of 14.407 Gm in 648.71 days, at an inclination of 173.0, orbits in retrograde direction and eccentricity of 0.248. S/2006 S 9 belongs to the Norse group The Norse group is a large group of Retrograde and prograde motion, retrograde irregular satellites of Saturn. Their semi-major axis, semi-major axes range between 12 and 27 Gm, their inclinations between 136° and 178° and their Orbital eccentr ... and it could possibly be a Phoebe fragment like S/2006 S 20, since it orbits at close proximity to Phoebe. References {{Moons of Saturn Norse group Irregular satellites Moons of Saturn Astronomical objects dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bergelmir (moon)
Bergelmir or Saturn XXXVIII (provisional designation S/2004 S 15) is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on May 4, 2005, from observations taken between December 12, 2004, and March 9, 2005. Bergelmir is about in diameter, and orbits Saturn at an average distance of 19,338,000 km in 1006.659 days, at an inclination of 157° to the ecliptic (134 ° to Saturn's equator), in a retrograde direction and with an eccentricity of 0.152. Its rotation period is hours. It was named in April 2007 after Bergelmir, a giant from Norse mythology and the grandson of Ymir, the primordial giant. Bergelmir and his wife alone among their kind were the only survivors of the enormous deluge of blood from Ymir's wounds when he was killed by Odin Odin (; from ) is a widely revered god in Norse mythology and Germanic paganism. Most surviving information on Odin comes from Norse mythology, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gridr (moon)
Gridr (Saturn LIV), originally known as S/2004 S 20, 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. It was given its permanent designation in June 2021. On 24 August 2022, it was officially named after Gríðr, a jötunn in Norse mythology. She is the mother of Víðarr the silent and the consort of Odin Odin (; from ) is a widely revered god in Norse mythology and Germanic paganism. Most surviving information on Odin comes from Norse mythology, but he figures prominently in the recorded history of Northern Europe. This includes the Roman Em .... She warned Thor about the treachery of Geirröðr and equipped him with her belt of strength, her iron glove, and her staff ''Gríðarvöl'' (Gríðr's-staff). Gridr is about 4 kilometres in diameter, and orbits Saturn at an average distance of 19.418 Gm in 1010.55 d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S/2006 S 1
S/2006 S 1 is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on June 26, 2006 from observations taken between January 4 and April 30, 2006. S/2006 S 1 is about 6 kilometres in diameter, and orbits Saturn at an average distance of 18.65 Gm in 951.1 days, at an inclination of 154.6° to the ecliptic The ecliptic or ecliptic plane is the orbital plane of Earth's orbit, Earth around the Sun. It was a central concept in a number of ancient sciences, providing the framework for key measurements in astronomy, astrology and calendar-making. Fr ... (178.9° to Saturn's equator), in a retrograde direction and with an eccentricity of 0.0814. The moon was once considered lost in 2006 as it was not seen since its discovery. The moon was later recovered and announced in October 2019. References External links Orbits of Saturn MoonsJune 26, 2006 (discovery and ephemeris) (recovery) {{D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mundilfari (moon)
Mundilfari, or Saturn XXV, is a natural satellite of Saturn. It was discovered by Brett J. Gladman, et al. in 2000, and given the temporary designation S/2000 S 9. Mundilfari is about 7 kilometers in diameter, and orbits Saturn at an average distance of 18,5903 Mm in 952.95 days, an averaged eccentricity of 0.210, and at an inclination of 168.4° to the ecliptic in a retrograde sense (compared to Saturn's orbit around the Sun). Mundilfari may have formed from debris knocked off Phoebe by large impacts at some point in the Solar System's history, but it is on an orbit sufficiently different from Phoebe that this may be difficult to reconcile. With a spectral slope of −5.0%/100 , Mundilfari is the bluest of all the moons studied by Grav and Bauer (2007), slightly more so than Phoebe (−2.5%/100 nm) and about as blue as Erriapus (+5.1%/100 nm) is red. Its rotation period is hours, the second-fastest among all the irregular moons studied by ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S/2004 S 13
S/2004 S 13 is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on 4 May 2005 from observations taken between 12 December 2004 and 9 March 2005. S/2004 S 13 is about 6 kilometres in diameter, and orbits Saturn at an average distance of 18,486,000 kilometres in about 938 days, at an inclination of 167.0° to the ecliptic The ecliptic or ecliptic plane is the orbital plane of Earth's orbit, Earth around the Sun. It was a central concept in a number of ancient sciences, providing the framework for key measurements in astronomy, astrology and calendar-making. Fr ..., in a retrograde direction and with an eccentricity of 0.271. This moon was considered lost until its recovery was announced on 12 October 2022. References Institute for Astronomy Saturn Satellite Data 3 May 2005 (discovery and ephemeris) {{DEFAULTSORT:S 2004 S 13 Norse group Moons of Saturn Irregular satellites ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greip (moon)
Greip or Saturn LI is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on 26 June 2006, from observations taken between 5 January and 1 May 2006. Greip is about 5 kilometres in diameter, and orbits Saturn at an average distance of 18,066 Mm in 906.556 days, at an inclination of 172.7° to the ecliptic (159.2° to Saturn's equator), in a retrograde direction and with an eccentricity of 0.3735, and is presumably at high risk of eventually colliding with Phoebe. It is unknown whether Greip is more similar to Suttungr or Hyrrokkin in color. Its rotation period is most likely hours with two minima in the light curve, but a longer period of 19 hours cannot be ruled out due to the short observation time by '' Cassini–Huygens''. It is named after Greip, a giantess in Norse mythology Norse, Nordic, or Scandinavian mythology, is the body of myths belonging to the North Germanic peoples, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyrrokkin (moon)
Hyrrokkin or Saturn XLIV is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on June 26, 2006, from observations taken between December 12, 2004, and April 30, 2006. Hyrrokkin is about 8 kilometres in diameter, and orbits Saturn at an average distance of 18,168 Mm in 914 days, at an inclination of 153° to the ecliptic (154° to Saturn's equator), in a retrograde direction and with an eccentricity of 0.3582. During four observations in March 2013, the synodic rotational period was measured by the Cassini spacecraft to approximately 12 hours and 45 minutes. The rotation period was later refined to hours. Its light curve shows three minima as seen in Ymir and Siarnaq, but has one minimum much shallower than the others. The rotation period and orbit are similar to Greip's, with only the inclination being appreciably different, but it is not known whether the moons are closely related to e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skoll (moon)
Skoll or Saturn XLVII (provisional designation S/2006 S 8) is a retrograde irregular satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt and Jan Kleyna on 26 June 2006 from observations taken between 5 January and 30 April 2006. Skoll is about 5 kilometres in diameter (assuming an albedo of 0.06) and orbits Saturn at an average distance of 17.6 Gm (million km) in 869 days, following a highly eccentric and moderately inclined orbit. A rotation period of was obtained by '' Cassini–Huygens'' in 2016, but this is in strong disagreement with 2013 data for unknown reasons; one possible explanation is variation in the rotation speed and axis due to Milankovitch wobble. It was named in April 2007 after Sköll, a giant wolf from Norse mythology Norse, Nordic, or Scandinavian mythology, is the body of myths belonging to the North Germanic peoples, stemming from Old Norse religion and continuing after the Christianization of Scandinavia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S/2019 S 2
S/2019 S 2 is a natural satellite of Saturn. Its discovery was announced by Edward Ashton, Brett J. Gladman, Jean-Marc Petit and Mike Alexandersen on May 3, 2023 from observations taken between July 3, 2019 and July 9, 2021. S/2019 S 2 is about 3 kilometers in diameter, and orbits Saturn at a distance of 16.560 Gm in 796.22 days, at an inclination of 173.3, orbits in retrograde direction and eccentricity of 0.279. S/2019 S 2 belongs to the Norse group The Norse group is a large group of Retrograde and prograde motion, retrograde irregular satellites of Saturn. Their semi-major axis, semi-major axes range between 12 and 27 Gm, their inclinations between 136° and 178° and their Orbital eccentr ... and makes it close to 0 tilt against the ecliptic plane due to of its inclination. References {{Moons of Saturn Norse group Irregular satellites Moons of Saturn Astronomical objects discovered in 2023 Moons with a retrograde orbit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S/2004 S 37
S/2004 S 37 is a natural satellite of Saturn Saturn is the sixth planet from the Sun and the second largest in the Solar System, after Jupiter. It is a gas giant, with an average radius of about 9 times that of Earth. It has an eighth the average density of Earth, but is over 95 tim .... Its discovery was announced by Scott S. Sheppard, David C. Jewitt, and Jan Kleyna on October 8, 2019 from observations taken between December 12, 2004 and February 2, 2006. S/2004 S 37 is about 4 kilometres in diameter, and orbits Saturn at an average distance of 15.892 Gm in 748.18 days, at an inclination of 163° to the ecliptic, in a retrograde direction and with an eccentricity of 0.497. References {{DEFAULTSORT:S 2004 S 37 Norse group Irregular satellites Moons of Saturn Discoveries by Scott S. Sheppard Astronomical objects discovered in 2019 Moons with a retrograde orbit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
