The Celestial Planetarium (quest)

The Celestial Planetarium and its Heroic mode equivalent Heroic: The Celestial Planetarium is the second step in the Algalon the Observer attunement quest chain.

Simply waltz across the antechamber to the east end of the wing and kill the guardian in front of the door.

Prospector Doren at the Archivum in Ulduar wants you to locate the entrance to the Celestial Planetarium.

• Entrance to Celestial Planetarium located

Listen, <lad/lass>! Azeroth's fate is at stake here.

Our only chance is to get to the Celestial Planetarium in time to find this Algalon and stop him from beaming back any messages to his Titan masters.

Locate the Celestial Planetarium and come back with any information you get. We might still have some time to prepare for Algalon's arrival.

You will receive: 27,550 experience or at maximum level

Did you find it, ?

It's locked? Figures!

Let's see what information this junk heap can give us...

The Celestial Planterium is located east, from the Archivum; go up, right, u-turn to the west and then down the corner hallways to the Chamber Overseer.