In yet another instance of life imitating art, astronomers officially named the other "dwarf planet" that caused poor Pluto to be downsized. They didn't name it "Zena"
They named it after Eris, the Greek goddess of discord:
Astronomers name 'world of chaos'
The distant world whose discovery prompted leading astronomers to demote Pluto from the rank of "planet" has now been given its own official name.
Having caused so much consternation in the International Astronomical Union (IAU), the object has been called Eris, after the Greek goddess of discord.
Somewhere, Hagbard Celine is smiling...