Using a generic heliocentric (
two-body) solution calculated near the time of
perihelion (closest approach to the Sun), it is estimated to have an
aphelion (Q) (furthest distance from the Sun) of . But the orbit of a long-period comet is properly obtained when the
osculating orbit is computed at an
epoch after leaving the planetary region and is calculated with respect to the
center of mass of the Solar System. After leaving the planetary region of the Solar System, the post-perihelion
orbital period is estimated to be about 78,000
years with aphelion around 3,650 AU. In 2007 it reached more than 30 AU from the Sun. == See also ==