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Ladd Observatory

Historic Sites, Monuments, Landmarks, and Public Art (National Register of Historic Places)


The Ladd Observatory was built for Brown University in 1891 under the direction of professor Winslow Upton. It was named after Herbert Ladd, the benefactor who funded the construction and who also served as governor from 1889 to 1892. It was designed by architecture firm Stone, Carpenter, and William in the Classical Revival style. The main telescope is a 12 inch refractor lens but the observatory contains other, smaller telescopes as well as precise pendulum clocks, chronometers and other instruments. A project to restore and preserve these instruments began in 2004. The observatory is open to the public on Tuesday evenings weather permitting.

The Ladd Observatory
The main telescope
Professor Winslow Upton


Ladd Observatory. Brown University Department of Physics. Accessed April 27, 2017.

210 Doyle Avenue
Providence, RI 02906
Phone Number
The observatory is open to the public for telescope viewings on Tuesday evenings, weather permitting. The hours depend on the time of year, please check the website for the current schedule.
  • Architecture and Historical Buildings
  • History of Public and Higher Education
  • Science and Technology
This location was created on 2015-06-10 by Ben M. .   It was last updated on 2017-04-29 by Michael Umbricht, Brown University

This entry has been viewed 1949 times within the past year


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