SP-345 Evolution of the Solar
System
FIGURE 8.5.4.- Idealized orbit of 153
Hilda in the Jupiter-Sun rotating coordinate system. Due to the 3/2
resonance, Hilda describes a triangular trajectory in a time interval
of 24 yr. Due to systematic perturbations the whole orbital pattern
will oscillate with an amplitude of 15° and a period of 260 yr.
Points A1 and
A2 are the aphelia
of Hilda and also her points of closest approach to Jupiter. The
distance between Hilda and Jupiter at close approach is never less
than 4 AU. (From Ip, 1974a.)
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