What is the name of the largest known dwarf planet?

January, 5: The largest known dwarf planet in the Solar System was discovered

Eris was originally discovered on January 5, 2005, by a team led by Mike Brown. The original photographs were taken in 2003, but the object was not identified until 2 years later. It was given the provisional name of 2003 UB313. Subsequent observations revealed a moon in October 2005, which was named Dysnomia two years later. Eris was one of the originally classified dwarf planets by the International Astronomical Union in 2006.

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28 Comments

filmnut

Ozie Martin, It's not cheating to get an ansewer by tne process of elemination in a multiple choice test. Matter of fact Sherlock Holmes would be proud of you . . . It's elimination Watson.

filmnut

You guys are still living in the twentieth century.

ChiefRaven

Quoted from wikipedia 2017 "Eris (minor-planet designation 136199 Eris) is the most massive and second-largest dwarf planet known in the Solar System." Ergo another flawed question.. Pluto is the largest known by area and Eris by volume. Homework people, homework.

Julia Belinda Reid

This question needs to be taken out or else revised. The latest data from 2016 states that Pluto is the largest dwarf planet.

Joann Foren

Big Bang Theory lol helps

Donaldo Davisini

Not for nothing, but my research revealed that the largest dwarf planet is EITHER Pluto OR Eris.

Rosemary Lloyd

OMG, I never heard of Eris! How NEAT to learn something new about a subject I love - namely, astronomy. I just assumed Mercury would be the answer. THANK YOU!

Jeff Squires

even a blind dog gets a rabbit now and then. a broken clock is right twice a day. and I guess it was my time to catch the rabbit (no pun intended ) I got it right.