Dwarf planetsA selection of sites and links about dwarf planets in general and about some of the largest dwarf planets recently discovered in our survey at Palomar Observatory.
- The dwarf planet page
What is a dwarf planet? Explanations of this new class along with a complete list of the likely candidates that meet the criteria for dwarf planethood.
- The eight planets
An explanation of why astronomers decided that Pluto should no longer be considered a planet and why eight is a good number of planets.
The largest dwarf planet, and the object whose discovery prompted the decision to reclassify all of these objects, including Pluto, as dwarf planets.
- A Requiem for Xena
A farewell to the former planet formerly known as Xena, now officially known as the dwarf planet named Eris.
- 2003 EL61 = Haumea
Information about Haumea, a rapidly spinning Pluto-sized football-shaped ice-coated deformed rock in the outer solar system with a family of icy debris around it.
the first of a new class of objects beyond the Kuiper belt and a fossilized record from the birth of the solar system.
Pluto's slightly smaller twin.
The first to be discovered (in 2002) of the truly gigantic Kuiper belt objects. Named for the creation deity of the Tongva tribe.
- Thoughts on the planet debate
Commentary written while astronomers were debating the new definition of the word "planet."