Kerberos and Styx named as moons of Pluto
The International Astronomical Union (IAU) announced Tuesday that names voted on by the public had been accepted for Pluto's fourth and fifth moons.
Posted — UpdatedKerberos and Styx, formerly known as P4 and P5, join Nix, Hydra and Charon. The names maintain the theme of classical Greek mythology involving the underworld.
from Earth, from returning. The ferryman Charon, son of Nix the Greek goddess of night, brings souls across the river to Pluto (or Hades in Roman myths), god of the underworld.
Hydra was a nine-headed serpent which doesn't fit quite so nicely into the underworld myths but Pluto's discovery as a ninth planet has been mentioned as motivation for the name as well.
votes and that list was submitted to the IAU's Working Group for Planetary System Nomenclature and the Committee on Small Body Nomenclature.
Though it did receive the most public votes, Vulcan was rejected because of the name's association with vulcanoids, or asteroids inside the orbit of Mercury. Cerberus was changed to Kerberos to maintain Greek naming and to prevent confusion with 1865 Cerberus, a 15 city-block-long asteroid that crosses the orbit of Mars and Earth.
Images of the new moons along with Pluto and its other natural satellites are little more than points of light in HST images.
Researchers eagerly await the arrival of the New Horizons missions in July 2014. After a more than 8-year journey, New Horizons will fly by Pluto gathering information on the planetoid's atmosphere, surface, and geology as well as measure the effects of the solar wind at the outer reaches of the solar system.
When launched in 2006, mission managers supplied the spacecraft with a pair of quarters from Florida, where the spacecraft was launched from, and from Maryland, where it was constructed. These quarters serve the practical purpose balancing the spinning spacecraft but also provide a ceremonial toll to cross the river Styx past Pluto and onto the Ort Cloud beyond.
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