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- Q18345 subject Q7033765.
- Q18345 subject Q7152549.
- Q18345 abstract "S/2004 S 6 is the provisional designation of a dusty object seen orbiting Saturn very close to the F ring. It is not clear whether it is only a transient clump of dust, or if there is a solid moonlet at its core.It was first seen by scientists in images taken by the Cassini-Huygens probe on October 28, 2004 and announced on November 8 that year. It appears to be the best tracked object in this region with at least five probable sightings in the period to late 2005. In comparison, two objects in the F ring's vicinity (S/2004 S 3 and S/2004 S 4) that were first seen several months earlier have not been recovered with any confidence. Nevertheless, it continues to be unclear whether there is a solid core to S/2004 S 6 or whether it is just a transient dust clump that will dissipate on a timescale of years or months. Notably, an imaging sequence covering an entire orbital period at 4 km resolution taken on November 15, 2004 (soon after S/2004 S 6's discovery) failed to recover the object, while it has been seen again later. The lighting conditions in S/2004 S 6's part of the orbit were different during these two observations, however, with the discovery being made when the region was strongly backlit by the sun. A suggested resolution of the absence in November is that S/2004 S 6's visibility is primarily due to a diffuse cloud of fine dust that is much brighter in forward scattered light (the conditions of the discovery image), and that the solid core (if any) is small.S/2004 S 6 has been seen both inside and outside the main F ring, and its orbit must cross the ring. Careful calculations show that the object periodically plows through the ring material, coming within 1.5 km of the densest core e.g. on 9 April 2005. It has been suggested that a spiral structure in the tenuous material surrounding the F ring may have been a consequence of this.The dusty halo seen in images is sizeable, being around 2000 km in lengthwise extent. The solid object, if any, would be no greater than 3–5 km in diameter based on brightness.Additional evidence came in 2008, as it appears that S/2004 S 6 or a body like it is required to explain the dynamics of the F Ring.".
- Q18345 discovered "2004-10-28".
- Q18345 epoch "13 April 2005 (JD2453474.1)".
- Q18345 meanRadius "2500.0".
- Q18345 orbitalPeriod "0.03456".
- Q18345 thumbnail S2004_S6.jpg?width=300.
- Q18345 wikiPageExternalLink iss_team.php.
- Q18345 wikiPageExternalLink 08432.html.
- Q18345 wikiPageWikiLink Q109144.
- Q18345 wikiPageWikiLink Q14267.
- Q18345 wikiPageWikiLink Q165585.
- Q18345 wikiPageWikiLink Q18350.
- Q18345 wikiPageWikiLink Q18355.
- Q18345 wikiPageWikiLink Q193.
- Q18345 wikiPageWikiLink Q194.
- Q18345 wikiPageWikiLink Q7033765.
- Q18345 wikiPageWikiLink Q7152549.
- Q18345 discovered "2004-10-28".
- Q18345 epoch "2005-04-13".
- Q18345 name "S/2004 S 6".
- Q18345 period "0.03456".
- Q18345 type Place.
- Q18345 type CelestialBody.
- Q18345 type Location.
- Q18345 type Place.
- Q18345 type Planet.
- Q18345 type Thing.
- Q18345 type Q634.
- Q18345 comment "S/2004 S 6 is the provisional designation of a dusty object seen orbiting Saturn very close to the F ring. It is not clear whether it is only a transient clump of dust, or if there is a solid moonlet at its core.It was first seen by scientists in images taken by the Cassini-Huygens probe on October 28, 2004 and announced on November 8 that year. It appears to be the best tracked object in this region with at least five probable sightings in the period to late 2005.".
- Q18345 label "S/2004 S 6".
- Q18345 depiction S2004_S6.jpg.
- Q18345 name "S/2004 S 6".