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Encyclopedia > Numbers about the solar system XIII
Orbital elements of the satellites: PLUTO
| Name | Number | Semi-major axis in km | Eccentricity | Inclination (in degrees) | Period (en days) | Diameter in km | Magnitude | ap in arcsec | Discovery |
|---|---|---|---|---|---|---|---|---|---|
| Charon S/1978 P1 |
I | 17 181 | 0.0 | 0.0 | 6.387230 | 1208 | 16.8 | 0.9 | Christy/Harrington (1978) |
| Nix S/2005 P2 |
II | 48 675 | 0.002 | 0.04 | 24,85463 | 42 | 24.5 | 2.3 | Weaver/Stern (2005) |
| Hydra S/2005 P1 |
III | 64 780 | 0,005 | 0,22 | 38.20177 | 55 | 24.4 | 2.9 | Weaver/Stern (2005) |
| Kerberos S/2011 P1 |
IV | 52 000 | 0.0 | 0 | 32.16756 | 13 | 25.7 | 2.7 | Showalter et al. (2011) |
| Styx S/2012 P1 |
V | 45 000 | 0,0 | 0 | 20.16155 | 6 | 26.7 | 2.3 | Showalter et al. (2012) |
mean osculator elements for 2009; inclination on the equateur of Pluto; elements for Charon calculated from Tholen (Icarus 1997, volume 125 p. 245) and for Nix and Hydra calculated from Buie et al. (Astronomical Journal 2006, volume 132, p.290). For S/2011 P1, elements from CBET 2769.