Asteroids captured by Gas Giants from a nearby Asteroid Belt
[ System Creation, Moons ]
Trojan asteroids lead and follow a Gas Giants in it's orbit. They are captured from an adjacent Asteroid Belt. Each Gas Giant can only have one set of Trojans, provided by one asteroid belt and each asteroid belt can provide trojans only to one adjacent gas giant. Trojans Asteroids cannot contain an atmosphere or an ocean and cannot gain them trough terraformation or other technologies.