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Table 1
Mean orbital and physical parameters for Pluto’s moons (Brozović et al. 2015).
| Param. | Charon | Styx | Nix | Kerberos | Hydra |
|
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| P [day] | 6.3872 | 20.1617 | 24.8548 | 32.1679 | 38.2021 |
| nb/n | 1 | 3.1565 | 3.8913 | 5.0363 | 5.9810 |
| α | 1 | 0.46203 | 0.40246 | 0.33932 | 0.30278 |
| e | 0.00005 | 0.00001 | 0.00000 | 0.00000 | 0.00554 |
| m/m0 | 0.12176 | 0 × 10-7 | 3.4 × 10-6 | 1.3 × 10-6 | 3.7 × 10-6 |
| R [km] | 604 | 4−14 | 23−70 | 7−22 | 29−86 |
Notes. The parameter m0 is the mass of Pluto.
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