Pluto’s Moons Get Official Names

Formally approved by the International Astronomical Union (IAU), the governing body that officially names celestial objects,  P4,  which is 20 kilometres across, has been named Kerberos, after the three-headed dog of ancient Greek legend. P5, at 30 kilometres in diameter, will now be known as Styx, after the mythological river that leads to the realm of the dead.

pluto_moons

The new cosmic recruits join the family Pluto’s three other moons–Charon, Nix and Hydra–all named for characters associated with the Underworld of Greek and Roman mythology. Learn more here or here.

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One Response to “Pluto’s Moons Get Official Names”

  1. ngc3130 Says:

    Reblogged this on NGC3130.

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