S/2005 S 4

A confirmed moon in the Saturn system.

Unnamed · S/2005 S 4

Snapshot 2026-09-09 · catalog 1.0.0

Explore S/2005 S 4 in Orrery

Physical measurements

Mean radius
— No value in the admitted source set.
GM · gravitational parameter
— No value in the admitted source set.
Mass
— Mass requires an admitted GM estimate.
Mean density
— No value in the admitted source set.

Orbit descriptions

Mean elements describe an average orbit. They are not positions for a chosen date.

SAT457 · ecliptic plane · 2000-01-01.5 TDB
Semimajor axis
11,324,500 km
Sidereal period
449.925 days
Eccentricity
0.315
Inclination to reference plane
48°
Argument of periapsis
107.1°
Mean anomaly
247.1°
Ascending node
169.4°
Apsidal / nodal precession periods
1,334.1 / 1,161.1 years
Reference-plane pole RA / Dec
— / —°
Plane tilt to parent equator
—°
Reference center
Not specified in this summary sourceThe summary table identifies a parent system but does not explicitly specify the reference center for each solution. Do not infer a physical-primary center, especially for Pluto’s circumbinary moons.

Orientation

No supported orientation model in the admitted PCK source.

Identity & availability

Stable catalog ID
s-2005-s-4
JPL / NAIF satellite ID
65129
Names & designations
S/2005 S 4
Discovery / rediscovery years
2005S.S. Sheppard, D.C. Jewitt, J. Kleyna, E.J. Ashton, B.J. Gladman, J.-M. Petit, M. Alexandersen

No validated dated trajectory admitted in catalog 1.0.0. Mean elements are not ephemerides.

No image or global texture admitted in this catalog release.No environment measurements admitted in this catalog release.

Sources & evidence

  1. JPL discovery circumstancestable tr[220] (zero-based); saturn / S/2005 S 4 · References: MPEC 2023-J79
  2. MPC planetary satellite listitems[142]; S/2005 S 4
  3. JPL mean orbital elements#sat_elem row ID=234; Saturn / S2005_S_4 / NAIF 65129 · References: 49

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