S/2019 S 42
Moon· orbits Saturn
S/2019 S 42 — moon of Saturn.
Open in 3D viewSee S/2019 S 42 in the live, interactive 3D map
Key facts
Radius
2 km
Orbit around Saturn
3.82 Earth years
1,396 Earth days
Science
Physical
- Radius (estimated)
- 2 km
- Sized from its brightness assuming a dark (~0.04) surface — never resolved, so the true diameter (~4 km) could be off by a factor of two.
Orbit around Saturn
- Distance from Saturn
- 0.161 AU
- From JPL orbital elements
- Orbital period
- 3.82 years
- From JPL orbital elements
- Eccentricity
- 0.09914
- From JPL orbital elements
- Inclination to the J2000 equator
- 172.51 °
- From JPL orbital elements
Radiation & temperature
- Insolation
- 0.0112 S⊕ · 1% of the sunlight Earth receives
- Computed from the distance to the Sun (inverse-square; Earth's sunlight = 1), before any atmosphere.
Discovery & history
- By
- S.S. Sheppard, D.C. Jewitt, E.J. Ashton, B.J. Gladman, J.-M. Petit, M. Alexandersen, J. Kleyna
S/2019 S 42 is the provisional designation of a small moon of Saturn detected in 2019 by S.S. Sheppard and colleagues. It has not yet been given a permanent name, and little is known about it beyond its discovery and orbit.
Images
No resolved image of this moon has been released: telescopes and passing spacecraft have recorded it only as a faint point of light.