Gridr
Gridr（天然衛星）。太陽系の 3D マップで大きさ、軌道、リアルタイムの位置を確認できます。 Gridr, originally known as S/2004 S 20, is a natural satellite of Saturn.
Gridr, 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. 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).
- 種類: 天然衛星
- 周回する天体: Saturn
- 軌道周期: 2.7 年