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Detached object · ~76–900+ AU

Sedna

Perihelion~76 AU
a~506 AU
Found2003
Period~11,000 yr

Found by Brown, Trujillo and Rabinowitz. Its closest approach keeps it too far for Neptune to have shaped its orbit.

A key member of the clustered population used as evidence for Planet Nine (Trujillo & Sheppard 2014). Surface procedural.

Sources

  1. Brown, Trujillo & Rabinowitz 2004, Sedna
  2. Trujillo & Sheppard 2014, Nature 507:471
  3. JPL Small-Body Database
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