90377 Sedna

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Places in Fenspace
90377 Sedna
Planetary characteristics
Orbitsemi-major axis 506.2 AU, eccentricity 0.85491±0.00029
Diameter995±80 km ? (thermophysical model)
1060±100 km ? (standard thermal model)
Year~11400 Earth years
Day10.273 hours
Mean Temperature~12 K
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90377 Sedna is a Sol system dwarf planet, believed by its discoverers to be part of the Oort cloud.

It was discovered by Michael Brown, Chad Trujillo, and David Rabinowitz on 14 November 2003, and is named after the Inuit goddess of the sea.