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Photo of the satellite Hydra of the planet Pluto
Hydra   Pluto III (S/2005 P1)

Hide this area Orbit data
Mean distance from the planet Pluto 64.780 km
Orbital period around the planet Pluto (sideric) 38,206 d
Orbital inclination 0,22 °
Eccentricity of the orbit around the planet Pluto 0,005
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Discovered by Hubble Space Telescope Team 2005
Mass 5,0 × 1016 kg
Equatorial radius 22 - 65 km
Minimum surface temperature 33 K
Maximum surface temperature 50 K
Albedo 0,04
Hide this area Mythology

The Hydra which lived in the swamps near to the ancient city of Lerna in Argolis, was a terrifying monster and an offspring of Echidna. The Hydra had the body of a serpent and many heads of which one could never be harmed by any weapon.

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