Golden Orrery

Wondrous item, artifact

Each of these golden, open structures is approximately 10 feet across and 15 feet high. The orbits are wild and complex (but not random or erratic) and stretch out to almost a mile from the Spire.

Because the pergolas are both invisible and intangible, finding one is virtually impossible without a little help. The orrery is a magical device that shows the complex orbital paths of the pergolas at any given time, thus predicting their relative positions with great accuracy.