SpazeDwarf planet, scattered disc
Eris
Almost exactly Pluto’s size and a little heavier. Its discovery in 2005 is what got Pluto reclassified as a dwarf planet.
- Size
- 2,326 km
- Orbit
- 559.5 years
- Distance from Sun
- 38.2 to 97.6 AU
- Day
- 25.9 hours
Can we live on Eris?
Air: only a faint trace of N₂ (frozen out), CH₄, far too thin to breathe. You’d live in sealed, pressurised habitats.
Ground: Methane frost over water ice, one of the brightest surfaces known.
Atmosphere
- N₂ (frozen out)
- CH₄
Measured by Keck, Gemini spectra