Astronomicum Caesareum

Michael Ostendorfer German
Author Petrus Apianus German
Printer Georg and Petrus Apianus German

Not on view

This most sumptuous of all Renaissance instructive manuals explained the use of the astrolabe (for calculating the altitude of stars) and other instruments used for computing planetary positions. The author, court astronomer to Emperor Charles V, also provided new observations on the comet of 1531 (Halley's Comet). Only about forty copies of this work survive; very few still have the seed pearls that were originally attached to the string markers on each of the eighteen disks.

Astronomicum Caesareum, Michael Ostendorfer (German, (?) ca. 1490–1549 Regensburg), Hand-colored woodcuts

Due to rights restrictions, this image cannot be enlarged, viewed at full screen, or downloaded.

Open Access

As part of the Met's Open Access policy, you can freely copy, modify and distribute this image, even for commercial purposes.


Public domain data for this object can also be accessed using the Met's Open Access API.