[quote="Cool Fool":c900c]wtf, i just saw one that said sedna was the planet name and it was 2,000km on cnn.com[/quote:c900c]
I believe "Quaoar" was the unofficial name for this object, until it changed to the official "Sedna" on Monday. If I remember correctly this thing was found in early 2002.
Edit: Just in case anyone didn't notice, the original BBC article posted by Mountaineer maniac is dated 7 October, 2002.