Discovered Appeared Not observed Appeared before discovery Not observed before discovery Returns in the future
2029 May 20 44P2022 Apr. 23 44P2015 Mar. 24 44P2008 Feb. 18 44P2001 Feb. 19 44P1994 June 29 44P1987 Oct. 25 44P1981 Jan. 29 44P1974 May 8 44P1967 Aug. 18 44P1960 Nov. 24 44P/1953 N11954 Mar. 27 44P/1947 R11947 Aug. 19