Kerberos

Kerberos
Date of discovery	Date of discovery::June 28, 2011
Name of discoverer	Discoverer::M. R. Showalter
Name origin	Name origin::Mythical 3-headed wolf or dog that guards the entrance to the underworld to prevent the dead from escaping.
Orbital characteristics
Celestial class	Member of::Moon
Primary	Primary::Pluto
Order from primary	Order::4
Perihadion	Periapsis::57,593 km
Aphadion	Apoapsis::57,973 km
Semi-major axis	Semi-major axis::57,783 km
Orbital eccentricity	Orbital eccentricity::0.00328
Sidereal month	Sidereal period::32.16756 da
Inclination	Inclination::0.389° to Pluto's equator
Physical characteristics
Color	Color::#AAAAAA