Editing Dwarf planet

== Explanation ==
A dwarf planet is an object that is not a [[satellite]] and by the [[International Astronomical Union|IAU]] definition:
* is in [[orbit]] around the [[Sun]]
* has sufficient mass to possess a spheroid-shape
* has '''not''' "cleared the neighbourhood" around its orbit.
Dwarf planets are not 'true' [[planet|planets]] only because of the last criterion, which says that a 'true' [[planet]] has "cleared the neighbourhood" in its orbital zone, meaning that there exist no objects of substantial mass other than natural satellites near its orbit.
== FAQs ==
=== Why isn't Pluto a planet? ===
[[Pluto]] was excluded from the [[International Astronomical Union|IAU]] definition of a planet due to a redefinition of the criteria for being a planet in 2006. This attracted some controversy after it defined the [[solar system]] to have 8 planets instead of 9, however it is generally accepted now that [[Pluto]] is a dwarf planet.