Discovered by Brett J. Gladman Adjectives Ymirian Orbital period 3.6 yr (1315.14 d) Discovered 2000 Alternative names S/2000 S1, Saturn XIX Discovery site Côte d'Azur Observatory | Discovery date 2000 Semi-major axis 23,040,000 km Mean anomaly 244.521° Orbits Saturn Orbital eccentricity 0.3349 | |
 | ||
Discoverers Brett J. Gladman, John J. Kavelaars Similar Kiviuq, Ijiraq, Paaliaq, Siarnaq, Aegir | ||
Ymir (/ˈɪmɪər/ IM-eer), or Saturn XIX, is a retrograde irregular moon of Saturn. It was discovered by Brett J. Gladman, et al. in 2000, and given the temporary designation S/2000 S 1. It was named in August 2003, from Norse mythology, where Ymir is the ancestor of all the Jotuns or frost giants.
Of the moons that take more than 3 Earth years to orbit Saturn, Ymir is the largest, at about 18 kilometres (11 miles) in diameter. It takes 3.6 Earth years to complete an orbit around Saturn. During this time, hypothetical Ymir visitors would experience ~2650 sunsets.
References
Ymir (moon) Wikipedia(Text) CC BY-SA