Distant world, inner Oort cloud
Sedna
One lap of the Sun takes about 11,000 years. At its farthest it is nearly 1,000 times farther out than Earth.
- Size
- 1,000 km
- Orbit
- 12,688.2 years
- Distance from Sun
- 76.2 to 1,011.8 AU
- Day
- 10.3 hours
Can we live on Sedna?
Air: none to speak of. You’d live in sealed, pressurised habitats.
Ground: Tholins, methane and nitrogen ice, very red.
Atmosphere
- None to speak of
Measured by Spitzer, Gemini