Jupitoons                          

Why Kogliuq doesn't exist anymore:

Kogliuq was a planet that orbited between Narx and Mesort. He got habitable before Mesort did! The gravitational pull of Andromedo pushed Kogliuq out of the habitable zone (Mesort captured his two moons). Due to being relatively small compared to the other moons of Andromedo, Kogliuq was pushed towards Andromedo, and got ripped apart due to getting too close