
Kia Ora Blog Readers
Have you ever heard of Pluto? Well if not, you’ve come to the right place. In this post you will find out why Pluto isn’t a planet anymore, what it has become and so much more!
Pluto isn’t a common Planet anymore like Mars, Jupiter Saturn etc, instead it is a Dwarf Planet. Pluto is a Dwarf Planet because because it didn’t pass the three criteria for passing as a Planet! The 3 criteria for passing as a planet is this – 1. It has to orbit the Sun. 2. it needs to be roundish. 3. it has to have a clear orbit.
Pluto passed the first 2 but unfortunately didn’t pass the last one. This leaves Pluto as a Dwarf Planet, NOT one of our main Planets!
In 2005 an object smaller than Pluto was found. We now know it as Eris. Eris and Pluto are now with Ceres, Haumea and MakeMake. The last one is fun to say – Mah-kay Mah-kay. Fun to say right? Don’t feel sorry for Pluto though, some day when it is does clear all of the three criteria, Pluto will become one of our common Planets. It just needs a clear orbit!
Do you have a favourite planet? Including Dwarf Planets!
Thank you for reading this week’s blog post. Blog to you soon