- Sep 21, 2018
- SLU Posts
That article is terribly out of date. There are several outer system bodies that fall into the "Dwarf Planet" size range (big enough their gravity makes them round), and the one they mention, 2014 UZ224, is probably a little too small to fit that category. That makes it just another asteroid/comet, though a large one. Haumea is elliptical because it rotates very fast, but it is still big enough its gravity makes it a smooth ellipse, so it qualifies. The grey half circles on some of the objects show the range of possible sizes, when that is not well known.