How was Eris discovered?

1 Answer

Mou nt polamar observatory conducts regular surveys for objects near Kuiper belt area.

Explanation:

In 2003 a team led by Prof Mike Brown discovered it..The object was again confirmed i n 2005..At that there was no definition of planets by IAU,.Many thought that it is 10th planet..IN 2006 IAU classified planets..It was moved into dwarf planet.
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