Map of the Universe
Triton
Moon · Largest moon of Neptune
About Triton
On 2026-01-01, the date the map shows, Triton was 29.9 AU from the Sun; sunlight takes 4.14 hours to reach it.
It goes round its planet once every 5.88 days, 354,766 km away on average.
It is about 2,707 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) | 354,766 km |
|---|---|
| Orbital period | 5.88 days |
| Eccentricity | 0.0001 |
| Inclination | 129.15° |
| Radius | 1,353.4 km |
| Distance from the Sun | 29.9 AU |
Where it is
Its place in the universe, from the inside out: Neptune › 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
Triton is the largest natural satellite of the planet Neptune. It is the only moon of Neptune massive enough to be rounded under its own gravity and hosts a thin, hazy atmosphere.
Excerpt from the Wikipedia article Triton (moon), licensed CC BY-SA 4.0.