Janus

Janus, also known as Saturn X, is a moon of Saturn.

15th of December 1966

 * Janus was discovered by Audouin Dollfus.

19th of Feburary 1980

 * Janus was discovered by Dan Pascu, naming it S/1980 S 1.

23rd of Feburary 1980

 * Janus was discovered by John W. Fountain, Stephen M. Larson, Harold J. Reitsema and Bradford A. Smith, naming it S/1980 S 2.