Dyson sphere

A dyson sphere is a large, stellar-scale megastructure which encloses an entire solar system and collects all of the energy emitted by the parent star.

Found Inside
Dyson spheres are rarely found inside galaxy arms.

Contains
Dyson spheres, enclosing entire solar systems, also contain parts of that solar system. This means that they can have:
 * A star
 * A dyson surface
 * Multiple future planets
 * Multiple barren planets
 * A gas giant

Naming
Dyson spheres are always called "dyson sphere".