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Museums - Collections

Epact Medieval and Renaissance Instruments

Epact is an electronic catalog of medieval and renaissance scientific instruments from four European museums. The catalog contains more than 500 entries, including astrolabes, armillary spheres, sundials, quadrants, nocturnals, compendia, and more. In addition, there are articles describing in detail the history and features of many sundial types.



Whipple Museum Dials and Astrolabes

Explore the Whipple Museum of History and Science.  The real museum is on Free School Lane in the center of Cambridge, with a rich collection of astronomical and dialing objects. The virtual museum is here on-line.  The Fitzwilliam collection  and Holden-White collection between them include more than a hundred  sundials, astrolabes, nocturnals, quadrants, and perpetual calendars.  Of particular interest is the museum's “Starry Messenger” that allows exploration of the Armillary Sphere, Astrolables, the Quadrant,  techniques of Hipparchus and Ptolemy, and of course, Sundials.  You can find a portrait of the dialist Nicholas Kratzer, "the king's astronomer".


© 1995-2014 NASS - North American Sundial Society