Kerberos was the seventh moon of Pluto to be discovered.
 Follow-up surveys by two teams in 2002 and 2003 respectively re-observed all five of these moons, which are Halimede, Sao, Psamathe, Laomedeia, and Neso
 All of Pluto's moons including Kerberos have very circular orbits with very low orbital inclinations to Pluto's equator

