Aegaeon

A confirmed moon in the Saturn system.

Named · Saturn LIII · S/2008 S 1

Snapshot 2026-09-09 · catalog 1.0.0

Explore Aegaeon 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.

PCK reference shape axes: ≈ 0.7 × ≈ 0.25 × ≈ 0.2 km. These are model axes, not a mapped surface.

Orbit descriptions

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

SAT415 · Laplace plane · 2000-01-01.5 TDB
Semimajor axis
167,500 km
Sidereal period
0.808115 days
Eccentricity
0
Inclination to reference plane
0°
Argument of periapsis
0°
Mean anomaly
4.4°
Ascending node
0°
Apsidal / nodal precession periods
0 / 0 years
Reference-plane pole RA / Dec
40.6 / 83.5°
Plane tilt to parent equator
0°
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
aegaeon
JPL / NAIF satellite ID
653
Names & designations
Aegaeon · S/2008 S 1
Discovery / rediscovery years
2008Cassini Imaging Science Team

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[173] (zero-based); saturn / Aegaeon · References: IAUC 9023
  2. MPC satellite namesitems[1]; Saturn 53
  3. JPL mean orbital elements#sat_elem row ID=141; Saturn / Aegaeon / NAIF 653 · References: 17
  4. NAIF PCK 00011BODY653_RADII; active data block

Full catalog, uncertainty and source manifests · All Saturn moons · Moon model limits