The Planetarium of the Crown is a domed structure that was designed as a gift to Hashan by Tavarius, a former citizen of the city, and played a pivotal role in the events preceding the Eternal Night. Originally constructed at the end of Gaear Street in Hashan, it is no longer accessible through the main gates.
Tavarius' project was given initial approval by the city's leadership; however, the location of the building site was chosen and construction commenced without further notification to the council. The subsequent destruction of a portion of Hashan's northern wall and the elusive demeanor of Tavarius became a point of contention within the city.
Within the planetarium are housed several exhibits, including a working orrery, telescope, and an overhead galaxy, while upon a platform at the top of the planetarium's tower rests the Disc of the Nocturne.