摘要
Using the Jeans problem and the Fermi problem of two bodies with variable masses,the influence of solar and cometary mass-loss on the orbit of comet SL9 is discussed in this paper.It is shown that solar and cometary mass-loss both will cause the secular and periodic terms in the semimajor axis a of comet SL9.The influence of solar massloss on the orbit of comet SL9 is very small and it may be omitted.But the influence of mass-loss of comet SL9 itself on its orbit is large and it may cause the secular variation in a to be about 104 km every year.The cometary mass-loss will obviously influence the time and place of the comet SL9 crashing into Jupiter.Therefore it should be considered on the orbit calculation and prediction of cornet SL9.
Using the Jeans problem and the Fermi problem of two bodies with variable masses,the influence of solar and cometary mass-loss on the orbit of comet SL9 is discussed in this paper.It is shown that solar and cometary mass-loss both will cause the secular and periodic terms in the semimajor axis a of comet SL9.The influence of solar massloss on the orbit of comet SL9 is very small and it may be omitted.But the influence of mass-loss of comet SL9 itself on its orbit is large and it may cause the secular variation in a to be about 10~4 km every year.The cometary mass-loss will obviously influence the time and place of the comet SL9 crashing into Jupiter.Therefore it should be considered on the orbit calculation and prediction of cornet SL9.
