New periodic comet discovered in 1999. But in the next return in 2008,
it became fainter by 2 mag.
Kazuo Kinoshita's calculation revealed that the perihelion distance
has been almost constant at 3.6 - 3.7 A.U. since 1952. Therefore, the
brightness of the comet should be also stable.
In the apparition in 1999, the comet was not observed in 2000, one
year after the discovery, although it must have been almost as bright
as at the discovery. It suggests that the comet was temporarily bright
in outburst in 1999.