The Tenth Planet's First Anniversary

Today, January 5, marks the first anniversary of the discovery of the Sun's
tenth planet--the first planet found in our solar system in 75 years. For
the full story, including results from the IAU's "What is a Planet?"
committee, see http://KenCroswell.com/TenthPlanetFirstAnniversary.html .

Excellent website. There have been a lot of new and interesting things
in the outer solar system the last couple years.

I don't think I'd call it "The Tenth Planet" yet. True, it doesn't
make much sense to call Pluto a planet and not 2003 UB313. But, the
answer might be to exclude Pluto from the list. Lot's of arguments,
but no resolution so far.

I'm also interested in Sedna. Apparently not part of the Kuiper belt,
but the previously unknown inner Oort cloud. At aphelion, it would be
the farthest known object in our solar system (~928 AU, 86 billion
miles).

Greg