UPSA Object Registry
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Styx

Natural satellite JPL Horizons
Orbital period
20.16 days

Also known as

2 identifiers

Horizons 905S2012_P1 2012P1

Recorded parameters

6 quantities with a single published value
ParameterValueUnitUncertainty As publishedSourceReference
Orbital period 20.16 days Orbital period, days JPL Horizons JPL Horizons on-line ephemeris system
GM 4.05000e-05 km^3/s^2 GM (km^3/s^2) JPL Horizons JPL Horizons on-line ephemeris system
Eccentricity e 0.025 e Eccentricity, e JPL Horizons JPL Horizons on-line ephemeris system
Inclination deg 0 deg. Inclination, deg. JPL Horizons JPL Horizons on-line ephemeris system
Radius km 5.2 km Radius (km) JPL Horizons JPL Horizons on-line ephemeris system
Semi major axis a km 43,200 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/styx · Registry entry updated 2026-08-14.