Eris (Dwarf Planets) trivia
Eris (Dwarf Planets) Mini Quiz
Test your knowledge with these top questions!
Question 1
Eris is officially classified as what kind of Solar System body?
The IAU classifies Eris as a dwarf planet because it orbits the Sun and is nearly round but has not cleared its orbital neighborhood.
Question 2
Which moon orbits the dwarf planet Eris?
Dysnomia's orbit helps astronomers estimate Eris's mass; Dysnomia is named for Eris's mythological daughter.
Question 3
Eris takes its name from which figure in Greek mythology?
Eris is the Greek goddess of discord and strife, associated with provoking quarrels among the gods.
Question 4
What major debate did Eris's discovery help intensify?
Eris's Pluto-like size helped prompt the IAU's 2006 decision to define planets and classify Pluto and Eris as dwarf planets.