Sedna was discovered on Nov. 14, 2003, by M. E. Brown, C. A. Trujillo and D. L. Rabinowitz at 675-Palomar in CA. The first photographic plate was taken 2003-11-14.27288 or 6:32:56.832 UT, as seen here (17° Tau 58'19.20" Rx). The next perihelion is at 76.18888 au on Jul. 18, 2076, 13:46:25 UT (7° Can 56'04.42"), and her orbital period is 12,973.40 yrs., according to the current epoch.
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