Ohio State University Observatory

The Ohio State University Observatory, known historically as the McMillin Observatory, has stood on the university's Columbus campus since 1896. It remains tied to Ohio State's long-running astronomy program.

About Ohio State University Observatory

The observatory opened on June 16, 1896, endowed by businessman Emerson McMillin. It sits on the Ohio State University campus near Mirror Lake, at the heart of the university's astronomical activity for well over a century.

History

McMillin's endowment funded not just the building but its principal instrument: a 12.5-inch Brashear refracting telescope on a mount built by Warner & Swasey, two of the most respected American instrument makers of the era.

Telescopes & research

The 12.5-inch Brashear refractor has long served Ohio State's astronomy program, supporting both student training and observational work from its Columbus location.

Location & getting there

The observatory is set on the Ohio State University campus in Columbus, Ohio, near Mirror Lake, making it easy to reach as part of a visit to the university grounds.

Visiting Ohio State University Observatory

For current opening hours and any public viewing nights, check with Ohio State's astronomy department or search their official pages before visiting.

See your named star from here

A named star from Star Register comes with exact right ascension and declination, the same kind of coordinates astronomers at this century-old observatory have used their Brashear refractor to track. Name a star today or explore the catalogue of stars already named.