Warner and Swasey Observatory

The Warner and Swasey Observatory is a former astronomical research station in East Cleveland, built at an elevated location above Lake Erie with two copper-domed telescope structures. The facility housed several telescopes of varying sizes and operated as an active research center for several decades.

Founded in 1920 by precision instrument makers Worcester Warner and Ambrose Swasey, the observatory became an active research center for astronomical work. As urban light pollution from Cleveland intensified over the decades, the facility was forced to relocate its largest telescope to a darker location.

The observatory played a key role in advancing our understanding of the galaxy through groundbreaking observations and research. Visitors today can appreciate how this site contributed to transforming what we know about the cosmos.

One of the original refractor telescopes from the site continues to operate at a nearby university building and remains available for viewing in certain conditions. Before visiting, check ahead about guided tours or special viewing hours that may be offered.

The observatory made important discoveries about the distribution of old, red giant stars toward the center of the Milky Way, revealing hidden patterns in our galaxy's structure. This finding became a cornerstone of modern galactic astronomy and shaped how scientists view stellar populations today.

Location: Ohio

GPS coordinates: 41.53610,-81.56850

Latest update: December 8, 2025 20:02