Forum:KB:Junkyard planet? Help!

Please help. This is one of those questions that came up in casual conversation which I cannot answer and its bugging me because I knew it.

What is the name of the "Junkyard Planet" (not its real name)? Some years ago I read a SW paperback and in it there was a whole planet whose surface was covered by miles of wrecked starships and other junk.

What was the name of the planet and book?

Help!

Mateo Tomas