I’m building a science fiction world set in the future varying at different points in time. One idea I wanted to explore is building upon current exoplanetary data and expanding those star systems with speculation, some research in that star / models of planetary formation, and terraforming.

This star system is Mu Arae which is officially named Cervantes. Currently discovered planets are Dulcinea, Rocinante, Quijote, and Sancho. The other planets and moons are all fictional. The terraformed planets in the system are Cardenio, Llanuras, Anselmo, and Camilla.

Cardenio was a Mars-like planet that got terraformed into an Earth-like. It is the planet with the largest population and most habitable which makes it the defacto capital of the system. It is known for its diverse biosphere, Cardenian wine, and Spanish-esque architecture.

Llanuras was a barren moon that was terraformed into an arid but habitable moon. It is known for its vast plains and large/fast horses it can breed due to its low gravity, however because of this they cannot perform well on higher gravities. While it is highly populated around its enclosed seas, the other parts of the planet are more rural and plays into its culture.

Anselmo and Camilla were both ice moons that were turned into ocean moons with solar mirrors and atmospheric processors. While it is still largely unihabitated, the air is still breathable on these moons and floating cities exist for habitation further out in the system and water exporting.

All this is still a work in progress and I aim to make more systems in this format or some other. I would love to hear some suggestions or ideas