<h2>Thousands of geosynchronous orbital habitats</h2>

Our own world is surrounded by over 2000 satellites but most are so small you cannot see them with your naked eye. Habitats on the other hand would be large enough to see from the ground.  The habitats would also twinkle because they rotate to maintain artificial gravity. Their light would mostly be the sun reflecting off of them much like the moon does, but they could use a series of reflector dishes to shine sun light on them even in the planet's shadow so that they can get 24/7 sunlight to power thier solar arrays. This way they never become eclipsed by the planet.

Your world could have once been home to a near future level civilization that experienced a nuclear war or something similar. Some people fled into underground bunkers to survive while others went into space.  After a few hundred years, your underground people came back above ground to see a star lite sky while your space people decided to stay in space.