Spinar-1

Spinar-1 is a white-dwarf system. 2 billion years ago, it was a dying red giant star. Nowadays, for the first 0.5 AU around it, broken remains of gas giants and rocky planets it once had reside in a spinning disk. The closest planet is a basketball around a hoop, because withing 455 years, it will hit the Roche limit and be annihilated.

Star-
Spinar A has an unusually powerful magnetic field. It is cooling fast, and the habitable zone is moving just inside it's Roche limit.

Planets-

 * Spinar b- Spinar b is slowly falling inward. It's crust is almost completely pulverized, probably because it used to rotate, and, being this close to Spinar A, felt extreme tidal forces, which heated the planet and destroyed the crust. Today, it is tidally locked, and one side is arid and dry, and the other is cold and chilly, locking most of Spinar b's water out of the daylight side.