Table 2
Statistics on the stars perturbing injected comets during their last orbital period.
| Stars | All | 10 best | 5 best | 2 best | Best |
|
|
|||||
| Gaia | 70%; 96% | 85%; 90% | 85%; 88% | 86%; 85% | 87%; 84% |
| Hipp | 9%; 74% | 22%; 38% | 25%; 33% | 26%; 26% | 26%; 20% |
| ⟨V⋆⟩ (km s-1) | 52.8 | 44.2 | 43.3 | 42.3 | 42.0 |
| ⟨M⋆⟩(M⊙) | 0.46 | 0.90 | 1.00 | 1.07 | 1.09 |
Notes. “All” refers to all the stars, “10 best” to the stars responsible for the ten largest negative perturbations of the perihelion distances, etc. Line “Gaia” gives the mean percent of stars detected by Gaia (first number) and, among the detected stars, the proportion for which the proper motion is above the corresponding limit accuracy of Gaia (second number). Line “Hipp” gives the same values for Hipparcos. The two last lines give the mean of the stellar encounter velocity and stellar mass.
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