Table 5
Effect of a passing star on the Solar System planets.
| Object | Initial | no star | After 105 yr nominal | dist./10 | |
|---|---|---|---|---|---|
| a | 5.162 | 5.1774475 | 5.1774485 | 5.1816781 | |
| Jupiter | e | 0.044 | 0.0386616 | 0.0386610 | 0.0380938 |
| i | 1.30 | 1.2510514 | 1.2510599 | 1.2524185 | |
| a | 9.5258 | 9.5276163 | 9.5276170 | 9.5292422 | |
| Saturn | e | 0.056 | 0.0771802 | 0.0771808 | 0.0773365 |
| i | 2.488 | 2.4780500 | 2.4781168 | 2.4849129 | |
| a | 19.1848 | 19.187124 | 19.187124 | 19.188364 | |
| Uranus | e | 0.047 | 0.0313471 | 0.0313486 | 0.0321796 |
| i | 0.77 | 1.3070023 | 1.3073480 | 1.3390967 | |
| a | 30.066 | 30.058894 | 30.058895 | 30.080055 | |
| Neptune | e | 0.0086 | 0.0117391 | 0.0117399 | 0.0128642 |
| i | 1.77 | 1.8837079 | 1.8843004 | 1.9093493 | |
| a | 39.49 | 39.50569 | 39.50571 | 39.88493 | |
| Pluto | e | 0.2490 | 0.2468883 | 0.2469112 | 0.2437073 |
| i | 17.14 | 17.260103 | 17.260642 | 17.272419 | |
Notes. The simulation spans 100 000 yr; a star passes its perihelion after 50 000 yr of simulation. In the consecutive columns we show: initial value of orbital elements and final values in three cases: with no passing star, with star passing at nominal distance (2940 au from Solar System barycenter) and with star passing ten times closer (294 au).
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