Large mass bodies behave like liquids near the gravity-inducing stars such as yellow giants. When the asteroid hit the mother planet, the two largest chunks of planet formed into spheres, their cores hotbeds of magma. Now they revolve around the yellow giant and the red dwarf in tandem, affecting each other’s tides and seasons relentlessly as they orbit the dual suns.

Watch for the Predator Planet Series by Vicky Holt coming January of 2019