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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.
The most obvious solution to determining Sedna's peculiar orbit would be to locate a number of objects in a similar region, whose various orbital configurations would provide an indication as to their history. If Sedna had been pulled into its orbit by a trans-Neptunian planet, any other objects found in its region would have a similar ...
Although the survey was sensitive to movement out to 1,000 AU and discovered the likely dwarf planet Gonggong, it detected no new sednoids. [29] Subsequent simulations incorporating the new data suggested about 40 Sedna-sized objects probably exist in this region, with the brightest being about Eris's magnitude (−1.0). [29]
Recent excavations unearthed artifacts presumably from the 1813 Battle of Medina south of San Antonio.
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 ...
Think Texas columnist Michael Barnes on the pedestal of the La Salle statue, November 1963. At age 9, he was already smitten by Texas history and the romance of twice-obliterated Indianola.
La grande traversée (English: The Great Adventure; also: Voyage of the Sedna (US); [8] The Great Crossing) [4] is a 2003 Canada-France short documentary film written and directed by Jean Lemire and Thierry Piantanida, [2] [3] as well as co-produced and co-narrated by Jean Lemire, [1] made to foster awareness of global warming as seriously jeopardizing a fragile Arctic ecosystem, the first ...
Michael E. Brown (born June 5, 1965) is an American astronomer, who has been professor of planetary astronomy at the California Institute of Technology (Caltech) since 2003. [1]