Pluto

Pluto
Pluto is a dwarf planet located in the Sol System and is the 9th (or 10th if you count Ceres) celestial object from its host star with its neighboring planet being Neptune followed by the dwarf planet Huamea. Pluto by far is the most well known dwarf planet by far and many peoples favorite feature of Pluto is its heart shaped crater. Pluto has a very long orbit clocking in at about around 248 years. To put how long that is, last time Pluto completed its orbit the Revolutionary war hadn't started yet. A Plutoain day is about 6 Earth days long.

Native Life
Pluto is way too far away from the sun to support any life.

Colonization
By the time of That One Reality Pluto hasn't had a Human landing yet but many probes have been sent and once Neptune is fully colonized it will be a launch pad to get to Pluto.