UPSA Object Registry
Registry · solar system

Triton

Natural satellite JPL Horizons
Mean radius
1,352.6 km
Orbital period
5.877 d
Geometric albedo
0.7

Also known as

2 identifiers

Horizons 801NI

Recorded parameters

8 quantities with a single published value
ParameterValueUnitUncertainty As publishedSourceReference
Mean radius 1,352.6 km Mean radius (km) JPL Horizons JPL Horizons on-line ephemeris system
Orbital period 5.876994 d Orbital period JPL Horizons JPL Horizons on-line ephemeris system
Geometric albedo 0.7 Geometric Albedo JPL Horizons JPL Horizons on-line ephemeris system
Eccentricity e 0 e Eccentricity, e JPL Horizons JPL Horizons on-line ephemeris system
Inclination i deg 157.3 deg Inclination, i (deg) JPL Horizons JPL Horizons on-line ephemeris system
Mean dens g cm 3 2.065 g cm^-3 Mean dens (g cm^-3) JPL Horizons JPL Horizons on-line ephemeris system
Rotational period Synchronous Rotational period JPL Horizons JPL Horizons on-line ephemeris system
Semi major axis a km 354,800 km Semi-major axis, a (km) JPL Horizons JPL Horizons on-line ephemeris system

Provenance

where this card came from
ArchiveRead at (UTC)Record
JPL Horizons 2026-08-14 17:11 open at source

Machine-readable: /api/v1/object/triton · Registry entry updated 2026-08-14.