Astronomical specifications:
| Discovery | |
| Orbital characteristics: | |
| Distance from Neptune | 354,759 km |
| Aphelion | (106 km) |
| Perihelion | (106 km) |
| Inclination | deg |
| Eccentricity | 0.00002 |
| Orbital periode rond Neptune | -5.877 days |
| Main orbital speed | 4.39 km/s |
| Inclination to Neptune equator | 157 deg |
| Number of moons | |
| Rings | |
| Physical characteristics: | |
| Dimensions | km |
| Radius | 1353.4 km |
| Surface area | 23,018,000 km² |
| Volume | 1 x 1010 km³ |
| Mass | 2.14 x 1022 kg |
| Density | 2.061 g/cm³ |
| Equatorial surface gravity | 0.78 m/s² |
| Escape velocity | 1.46 km/s |
| Rotation period | 5.877 days |
| Surface temperature | 38 K |
| Axial tilt | 0 deg |
| Atmospheric composition | N2, CH4 |
Global color mosaic of Triton, taken in 1989 by Voyager 2 during its flyby of the Neptune system.