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Sedna (minor-planet designation: 90377 Sedna) is a dwarf planet in the outermost reaches of the Solar System, orbiting the Sun beyond the orbit of Neptune. Discovered in 2003, the planetoid's surface is one of the reddest known among Solar System bodies.
Sedna (Inuktitut: ᓴᓐᓇ, romanized: Sanna, previously Sedna or Sidne) is the goddess of the sea and marine animals in Inuit religion, also known as the Mother of the Sea or Mistress of the Sea. The story of Sedna, which is a creation myth, describes how she came to rule over Adlivun , the Inuit version of the underworld .
One particularly distant body is 90377 Sedna, which was discovered in November 2003.It has an extremely eccentric orbit that takes it to an aphelion of 937 AU. [2] It takes over 10,000 years to orbit, and during the next 50 years it will slowly move closer to the Sun as it comes to perihelion at a distance of 76 AU from the Sun. [3] Sedna is the largest known sednoid, a class of objects that ...
Sedna may refer to: Sedna (mythology), the Inuit goddess of the sea; Sedna (dwarf planet), a trans-Neptunian dwarf planet; Sedna (beverage), a tonic wine, formerly made in Belfast; Sedna (database), a native XML database; Doriprismatica sedna, a species of nudibranch; Sedna Finance, a structured investment vehicle; Sedna Planitia, a landform on ...
The radii of these objects range over three orders of magnitude, from planetary-mass objects like dwarf planets and some moons to the planets and the Sun. This list does not include small Solar System bodies , but it does include a sample of possible planetary-mass objects whose shapes have yet to be determined.
Along with the similar orbits of other distant trans-Neptunian objects, the orbit of Leleākūhonua suggests, but does not prove, the existence of a hypothetical Planet Nine in the outer Solar System. [5] [12] As of 2019, the object is inbound 78 AU from the Sun; [9] about two-and-a-half times farther out than Pluto's current location. [13]
Nemesis is a hypothetical red dwarf [1] or brown dwarf, [2] originally postulated in 1984 [3] to be orbiting the Sun at a distance of about 95,000 AU (1.5 light-years), [2] somewhat beyond the Oort cloud, to explain a perceived cycle of mass extinctions in the geological record, which seem to occur more often at intervals of 26 million years.
Channel 9 (Greek: Κανάλι 9) was a Greek television channel broadcasting in the region of Attica. Despite being declared to be a news-based channel, [ 1 ] the majority of the channel's programming since the early 2010s, has consisted of telemarketing .