From MyWay News:
10th Planet Slightly Larger Than Pluto
Apr 11, 9:53 PM (ET)
By ALICIA CHANGLOS ANGELES (AP) – An icy ball discovered last year in the outer solar system is only slightly larger than Pluto, casting doubt on previous estimates that the so-called 10th planet was significantly larger, scientists reported Tuesday…..
According to Hubble, UB313’s diameter measures 1,490 miles, give or take 60 miles. Pluto is about 1,422 miles across…..
The discovery of UB313, which Brown nicknamed Xena, reinvigorated the debate about what is considered a planet. Some astronomers have questioned whether Pluto should keep its planetary status, while others say UB313 should be the 10th planet because it is bigger than Pluto.
The International Astronomical Union, which oversees the naming of planets, has not taken a stance on the issue.
If it is determined to be the 10th planet, UB313 would be the farthest-known body in the solar system.