Fantasy
Dyson Spheres of the Vaba Cluster
The Map Sphere consists of thirteen stellar sails, circular in shape, arranged asymmetrically around the host star. They are easy to miss but look closely and you will see them: specks against the dark, clustered in no more than thirty degrees of arc. They are not really a sphere, this is true. Their total power production is so low you would be forgiven for doubting their function.