S/2004 S3
S/2004 S3 information
Average distance
from
Saturn
:
140580 km (0.0009
AU
)
Equatorial radius
:
2 km (
Diameter
: 4 km)
Siderial orbit period (length of year)
:
0.62095 earth days
S/2004 S3, Saturn
S/2004 S3
S/2004 S 3 is the provisional designation of an unconfirmed moon of Saturn. It was discovered by Carolyn C. Porco and the Cassini Imaging Team in images taken by the Cassini-Huygens probe on June 21, 2004, and announced on September 9, 2004.
The moon is believed to be 3-5 km in diameter and orbits just beyond Saturn's F Ring, inside the orbit of Pandora. It seems to be a shepherd satellite for the outer edge of Saturn's F ring. Scientists cannot yet definitively say if the object is a moon or a temporary clump of ring material.
Another possible moon, S/2004 S 4, was sighted nearby shortly afterward, but this time inside the F Ring. Since it is not certain how a moon's orbit could cross a ring, scientists are currently assuming that they have discovered two separate objects, but the possibility that they have found a ring-crossing moon cannot yet be discounted.
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Discovered by Cassini team in 21.6.2004
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