Janus
Janus (Saturn X, S/1966 S 2) is one of the inner [natural satellites|moons]] of Saturn. It was discovered by Audouoin Dollfus on 15 December 1966. However, Jean Teereau had imaged Janus on 29 October the same year, but, did not recognize it as a new body. Janus was named for Janus of Roman mythology.
Janus is co-orbital with Epimetheus in that when Janus' orbit is slightly smaller than that of Epimetheus, over time, Janus will catch up with Epimetheus, as it makes its approach, it is slightly drawn toward Epimetheus adding orbiter energy placing it in a slightly larger orbit, then it will slow down and recede from Epimetheus, and over time Epimetheus will catch up to it. So, they 'swap orbits' so to speak. This occurs about every four years.
Janus in Orbiter
Janus was first introduced to Orbiter with the release of isaturn.zip in October 2002.
Add-on | Source | Version | Author | Type | Release Date | Compatibility | Wiki article |
---|---|---|---|---|---|---|---|
The Outer Planets 050329 Update | AVSIM | 050329 | Rolf Keibel Tony Dunn Carl Romanik |
Scenery | 30 March 2005 | ||
The Outer Planets 050223 Update | O-F Resources | 2005-02-23 | VF2_Rolf | Scenery | 23 February 2005 | ||
The Outer Planets 050125 | AVSIM | 050125 | Rolf Keibel Tony Dunn |
Scenery | 26 January 2005 | Orbiter 2005-P1 | |
Inner Moons of Saturn | AVSIM | Rolf Keibel | Scenery | 15 October 2002 |
See also
Gallery
Janus as seen by the Cassini spacecraft on 7 April 2010,
from Wikimedia Commons
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