Results from a series of long-term numerical integrations of orbits centred on that of C/1995 O1 (Hale-Bopp) are presented. Initially, 33 orbits taken from various sources were integrated in realistic models of the solar system for various time-scales about the present in the range (-3, +2) Myr and analyzed to assess the probability of different dynamical outcomes, such as a sungrazing state or the number of orbits since it was captured from a long-period orbit in the Oort cloud. ...

Operating Instructions PEC Utility Tool For use with Meade LX200GPS and RCX400 Telescopes PEC Utility The PEC Utility Tool allows you greater control over the Periodic Error Correction functions of your LX200GPS or RCX400 telescope. ... PEC Utility option is located in the AutoStar Suite telescope menu and is available with the AutoStar Suite Update, on the meade.com website. ... The "Shifting the PEC" now allows you to shift the corrections forwards or backwards to compensate for the time lag. ...

... These trajectories have an initial flight from the Earth to a large distance (of about 1.5 million km), the following passive flight to the Moon's orbit, an approach to the Moon with a decrease of an energy of a particle (spacecraft) selenocentric motion to a negative value and the temporary capture in an elliptic orbit of the Moon's satellite. ... Several trajectories of this type are determined. ... Ivashkin V. V. On optimal trajectories of space flight to the Moon in the Earth--Moon--Sun system. ...