The old Observatory building houses the Institute of Astronomy Library which has a collection of modern and historical astronomical books.

[2] There are a set of optical telescopes at the site on the Madingley Road in the west of Cambridge.

By modern standards these are small, as well as being affected by light pollution.

The 36-inch telescope was used for studies of stellar radial velocities until 2019, and the historic Northumberland and Thorrowgood telescopes are used as part of the public outreach activities of the Institute.

This article about a specific observatory, telescope or astronomical instrument is a stub.