List of Discoveries
He has discovered several trans-Neptunian objects (TNOs). The last major TNO, Eris, was considered by him, his team, NASA, and many others to be the tenth planet, but the International Astronomical Union assigned it to the new dwarf planet and plutoid status.
The known plutoids are:
- Quaoar (with Brown)
- Sedna (with Brown and Rabinowitz), possibly the first known inner Oort cloud object
- Orcus (with Brown and Rabinowitz)
- Eris (with Brown and Rabinowitz), the only known TNO more massive than Pluto
- Haumea
- Makemake
Read more about this topic: Chad Trujillo
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