|Quest||Repairing the Orrery|
|Location||Imperial Orrery, Arcane University|
|Released||April 17, 2006|
|For problems related to installation, see Installation Issues|
The Orrery is an official add-on for Oblivion, adding a new quest to repair the Arcane University's Orrery. Restoring the Orrery grants you a greater power that will fortify one attribute while draining another. The particular power that you receive is based on the phases of the moons, Masser and Secunda.
- Harness the power of the stars. Rebuild the defiled Orrery and unlock the secrets of this Mages Guild Inner Sanctum. —Former Official Summary
- The Orrery Pack allows you to help the Mages Guild of Cyrodiil repair the Imperial Orrery, an ancient dwarven machine with mystical properties. Bandits have stolen a shipment of parts destined for the Arcane University; if you can return them, the Orrery will function once more. —Current Official Summary
 Gameplay information
- Items — 4 new miscellaneous items and 2 letters are included with the add-on.
- Magic — 8 new greater powers are available once the Orrery is repaired.
- Quest — Assist Bothiel in repairing the Imperial Orrery.
[Original description from obliviondownloads.com]