UPSA Object Registry
Registry · solar system

Amalthea

Natural satellite JPL Horizons
Mean radius
83.5 km
Density
0.849 g cm^-3
Geometric albedo
0.09

Also known as

2 identifiers

Horizons 505JV

Recorded parameters

4 quantities with a single published value
ParameterValueUnitUncertainty As publishedSourceReference
Mean radius 83.5 km Mean radius (km) JPL Horizons JPL Horizons on-line ephemeris system
Density 0.849 g cm^-3 Density (g cm^-3) JPL Horizons JPL Horizons on-line ephemeris system
Geometric albedo 0.09 Geometric Albedo JPL Horizons JPL Horizons on-line ephemeris system
Rotational period Synchronous Rotational period JPL Horizons JPL Horizons on-line ephemeris system

Provenance

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

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