104P/Kowal

In 2003, Gary Kronk and Brian Marsden noticed that an object observed by Leo Boethin in 1973 was actually 104P/Kowal. From Boethin's report, it was apparent that comet Kowal 2 had been in a short, major outburst to apparent magnitude 9.5 in 1973. During the 1997–98 apparition, the comet was brighter than expected, reaching an apparent magnitude of 13 in mid January. == Orbit ==

The comet was in an orbit with a perihelion distance of 1.50 AU and an orbital period of 6.38 years until an approach to Jupiter on 15 January 1996 reduced both to 1.40 AU and 6.18 years respectively. A further encounter with Jupiter on 4 July 2007 at a distance of 0.300 AU reduced the perihelion distance to 1.18 AU and the orbital period to 5.90 years. One more close approach to Jupiter on 30 May 2019 reduced the perihelion distance to 1.07 AU and orbital period to 5.74 years. == References ==