Large trans-Neptunian objects

Large trans-Neptunian objects

Fig. 15.6 . Comparison of the disk sizes of the eight largest trans-Neptunian objects known in 2009. Five of them are known to have moons. The top four were officially designated as dwarf planets, and they have now been re-designated as Plutoids. The other four are candidates for this classification. (Courtesy of Wikimedia Commons.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University