Terraria – Celestial event won’t initiate after killing the Lunatic Cultist

The Celestial Event is unlike most other events that you would be used to, in the way that the creatures from it spawn. Usually an event will spawn the enemies near the player or near the player's original spawn point (the centre of the map) however the Celestial Event does neither of these two.

After you kill the Lunatic Cultist four Celestial Pillars will spawn at even(ish) intervals around the map. The Celestial creatures will spawn near these pillars.

From the centre of the map if you travel left or right you will encounter two of the pillars before reaching the Ocean. The background and music will change when you enter the Celestial zones and you will encounter new, very difficult enemies.

You can ascertain the exact locations of the Celestial Pillars by opening up the map (default m) and the four pillars should already be marked on the map floating slightly above the surface.