Sedna

== Description ==
Sedna was discovered in 2003 by a team of American astronomers at Palomar Observatory on Mount Palomar, California. Its discoverers named the new object Sedna, after the Inuit goddess said to live in a cave at the bottom of the Arctic Ocean. Sedna is between 1,200 and 1,600 km (700 and 1,000 miles) in diameter, and it was found to have a highly elliptical orbit, which took it from 76 times the Earth-Sun distance to 1,007 times that distance and back in a period of 12,599 years.https://www.britannica.com/place/Sedna In terms of color, Sedna appears to be almost as red as Mars, which some astronomers believe is caused by hydrocarbon or tholin.http://www.universetoday.com/37479/dwarf-planet-sedna/
== Sources ==
== Images ==
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Category:Ice_worlds
Category:Objects
Category:Real_objects
Category:Transneptunian objects
Category:Solar System