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View Full Version : The Pictures are Here! New Horizons Close Up View of 2014 MU69



Fraser
2019-Jan-02, 11:30 PM
On December 31st, 2018, NASA and the New Horizon‘s team (plus millions of people watching the live stream at home) rang in the New Year by watching the New Horizons mission make the first rendezvous in history with a Kuiper Belt Object (KBO). About thirty minutes after the probe conducted its flyby of Ultima Thule …
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Hornblower
2019-Jan-03, 04:31 AM
...the first rendezvous in history with a Kuiper Belt Object (KBO)Have I missed something about the definition of KBO? Is Pluto not considered a large KBO?

ronin
2019-Jan-03, 05:44 AM
Have I missed something about the definition of KBO? Is Pluto not considered a large KBO?

According to the definition adopted by the IAU in 2006, a dwarf planet is, ďa celestial body orbiting a star that is massive enough to be rounded by its own gravity but has not cleared its neighboring region of planetesimals and is not a satellite". Hence Pluto is a Dwarf Planet as are Eris, Makemake, Quaoar, Sedna, Orcus and several other bodies that are also part of the Kuiper Belt.