Fiction:Virgo Birch Planet/Orbit

Orbit
The Virgo Birch Planet has an extensive presence into orbit far above the uppermost surface of the planet that extends into the greater Virgo System. Many megastructures and artificial celestial bodies exist here and can be treated as the planet's "moons".

Photon Sphere
The photon sphere of Azathoth-3S exists 3000 AU above the surface of the crust and represents the lowest possible stable orbit, with a velocity of the speed of light. For practical reasons, almost all objects orbit at a distance greater than this where speeds may be slower.

A barrier called the Global Object Disintegration Firewall, or, GOD Firewall exists here where electromagnetic radiation is emitted at this height so that it orbits the planet. Because the radiation will never reach the eyes of an external observer, the Firewall is invisible. It is designed to vaporize asteroids, micrometeors or other debris that may strike the surface of the planet. This is needed as not all of the gazillions of rocks and space dust that were originally in the Pristini Galaxy were absorbed into the black whole during the planet's construction, and are able to accelerate to relativistic velocities as they fall towards the planet due to the immense distance available. Gaps in the firewall can be opened by structures at the height of the sphere equipped with quarkonium devices that gravitationally bend the light's path. As a result, approach to the planet by a ship must have some method to survive the firewall to avoid incineration.

Orbital Habitats
Many Alderson Disks, Ringworlds, Dyson Spheres, and other megastructures exist to act as auxiliary habitats for more life. These structures have variable gravity and so can host different ecological conditions not found on the crust. Additionally, artificial planets can be constructed at any size, although this is less common. A Kardeshev II civilisation may evolve on one of these structures and completely colonise/take it over

Orbital Infrastructure
The planet has a vast fleet of mobile Dyson spheres in orbit at its command. Some of these act as sources of energy streams while others are simple power generators. many spheres Matrioska brains which can act as computer nodes for some larger task or can be set to compute one specific large problem. Many other exotic structures exist in orbit too such as neutron star refineries, wormhole generators, massive material storage facilities and others.