38P/Stephan-Oterma

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Updated on July 31, 2004

Returns and Appearances Discovered Appeared Not observed Appeared before discovery Not observed before discovery Returns in the future 2018 Nov. 10 38P/1980 L2 1980 Dec. 5 38P/1942 V1 1942 Dec. 19 1904 May 24 38P/1867 B1 1867 Jan. 20

The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996. The perihelion date in 1904 is calculated using the Minor Planet & Comet Ephemeris Service.