Dysnomia

Outline The numbers here are measured. The rest of this page is being written.

The path of Dysnomia round Eris, seen from above and drawn to scale, with the white dot at its nearest point. Orbit from NASA/JPL Horizons, solution for this moon's orbit.

Kind: Moon of Eris
Distance: 37,275 km from Eris on average
Once round: 15.79 days
Path: very nearly a circle (eccentricity 0.0061), tilted 61.6°
Size: 700 km across, 20.1 per cent of our Moon’s width
Found: 2005, by M. E. Brown and others, Keck Observatory

Eris On the atlas In 3D

Dysnomia, our Moon and Eris, drawn to one scale from their measured sizes, as plain discs.

Still being written

What it looks like up close
What it is made of
How it was found
Spacecraft that have seen it
What is still unknown

Sources: NASA/JPL Horizons, solution for this moon's orbit; NASA/JPL Horizons, physical data for this moon.