Tours of the Astronomical Photographic Glass Plate Collection are currently suspended. Ordinarily, Plate Stacks tours are restricted to Tues. 1-3 and Thurs. 10-12.
Tours of the Wolbach Library and the Observatory's Great Refractor led by the Head Librarian are also suspended.
We are committed to supporting all visitors to the Observatory. Unfortunately we are constrained by the 19th (and 20th) century buildings in which our collections are stored. For this reason, please specify if your tour will include wheelchair users. We can provide virtual tours of the Plate Stacks and Great Refractor, along with the oportunity to view archival objects and ask questions, without entering inaccessible spaces.