Map of the Universe
Dione
Moon · Moon of Saturn
About Dione
On 2026-01-01, the date the map shows, Dione was 9.52 AU from the Sun; sunlight takes 79.1 minutes to reach it.
It goes round its planet once every 2.74 days, 377,653 km away on average.
It is about 1,123 km across.
The map lists it as a moon and shows it in the Solar System part of the map, drawn on the plane of Earth’s orbit (the ecliptic).
Key numbers
| Orbit radius (semi-major axis) | 377,653 km |
|---|---|
| Orbital period | 2.74 days |
| Eccentricity | 0.0016 |
| Inclination | 28.02° |
| Radius | 561.4 km |
| Distance from the Sun | 9.52 AU |
Where it is
Its place in the universe, from the inside out: Saturn › Solar System › Orion–Cygnus Arm (Local Arm) › Milky Way › Local Group › Virgo Supercluster › Laniakea Supercluster › Observable universe.
Zoom out to see it in context: Neptune and the Kuiper belt, a view about 110 AU across.
From Wikipedia
Dione is the fourth-largest moon of Saturn. With a mean diameter of 1,123 km and a density of about 1.48 g/cm3, Dione is composed of an icy mantle and crust overlying a silicate rocky core, with rock and water ice roughly equal in mass.
Excerpt from the Wikipedia article Dione (moon), licensed CC BY-SA 4.0.