Dwarf planet
Sedna
Distant body in the outer Solar System
Right now · as of
How far is Sedna from Earth?
12.3 billion km (82 AU)
Its light takes 11 h 21 min to reach us.
12.4 billion km (82.8 AU) from the Sun.
Open in 3DIn numbers
- Radius
- 500 km
- From the Sun
- 12.4 billion km (82.8 AU)
Position and orbit from JPL Horizons
Sedna (dwarf planet)
Sedna is a dwarf planet in the outermost reaches of the Solar System, orbiting the Sun far beyond the orbit of Neptune. It was discovered in 2003, and is roughly 1,000 km in diameter. Spectroscopic analysis has revealed its surface to be a mixture of the solid ices of water, carbon dioxide, and ethane, along with sedimentary deposits of methane-derived, reddish-colored tholins, a chemical makeup similar to the surfac…
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