Comet P/2008 S1 = 2008 JK (Catalina-McNaught) P/2008 S1 (Catalina-McNaught) was discovery by R. H. McNaught (Siding Spring survey) on the 19th September 2008. The orbital elements are were to be found to be the same as an object imaged by the Catalina Sky Survey several months earlier.