2015 RR245 (which known as a temporary designation (and indicates WHEN in 2015 it was discovered)) is indeed small, i.e., less than 1/3rd the size of Pluto, and amazingly far away. BUT that does NOT automatically make it into a Dwarf Planet.
I do know a fair amount about Dwarf Planets. I have written a book about them.
As of today, July 13, 2016, there are but five (5), and only five (5), dwarf planets. They are: Ceres, Pluto, Haumea, Makemake and Eris. Period. Full stop. Just 5. Ceres, Pluto, Haumea, Makemake and Eris.
CNN cannot designate a Solar System body a Dwarf Planet.
Neither can any astronomer.
For that matter neither can NASA or its European equivalent, ESA!
That a Solar System body is a Dwarf Planet can ONLY be designated by the International Astronomical Union (IAU). That is it.
Until the IAU says it is a Dwarf it is NOT a dwarf. Simple as that.
The last time the IAU designated a Solar System body a Dwarf was on September 17, 2008. See below. That was Haumea. They have kept their ‘powder dry’ since then!
So nobody but nobody can jump the gun.
Until the IAU says so, 2015 RR245 is NOT a Dwarf Planet.
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