4P/Faye

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Profile The brightening and fading is rapid along a 25 log r formula. However, there is some variation of its brightness among every apparition. The absolute magnitude seems to vary between 4.0 and 5.2 mag. It was faint in 1991, but bright in 1999. Kazuo Kinoshita's calculation revealed that it has been getting closer to the Sun gradually. The perihelion distance has been reducing from 1.8 A.U. down to 1.5 A.U. during about 260 years between 1843 and 2102. Returns and Appearances Discovered Appeared Not observed Appeared before discovery Not observed before discovery Returns in the future 2014 May 29 4P 2006 Nov. 15 4P 1999 May 6 4P 1991 Nov. 16 4P 1984 July 9 4P 1977 Feb. 27 4P 1969 Oct. 7 4P 1962 May 14 4P 1955 Mar. 4 4P 1947 Sept.28 4P 1940 Apr. 24 4P 1932 Dec. 6 4P 1925 Aug. 7 1918 Mar. 29 4P 1910 Nov. 2 1903 June 5 4P 1896 Mar. 19 4P 1888 Aug. 20 4P 1881 Jan. 23 4P 1873 July 18 4P 1866 Feb. 14 4P 1858 Sept.13 4P/1850 W1 1851 Apr. 2 4P/1843 W1 1843 Oct. 17

The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996. The perihelion dates of non-observed returns from 1903 to 1918 are calculated using the Minor Planet & Comet Ephemeris Service. Information on the discovery and historical highlights are available at General Comet Info (Gary W. Kronk). Orbital elements in the past and future are calculated by Kazuo Kinoshita (http://www9.ocn.ne.jp/~comet/pcmtn/0004p.htm).