Potsdam Kapteyn Plates Web Service

In the context of Kapteyn's plan to obtain a photometric standard, in Potsdam more than 400 photographic plates of several Selected Areas, Special Areas, and Kapteyn-Pritchard areas were obtained between 1910 and 1933, both as direct images and with an object prism. This service provides FITS images of the science area of the plates as well as images of the entire plates, including previous markings.

ICRS Position, RA,DEC, or Simbad object (e.g., 234.234,-32.45)
Size in decimal degrees (e.g., 0.2 or 1,0.1)
Relation of image and specified Region of Interest.
Epoch at midpoint of observation
No selection matches all, multiple values legal.
Special object on plate.
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Limit to items.

Kapteyn series plate scans is licensed under the Creative Commons Attribution 4.0 License


Support for scanning the plates and obtaining metadata was provided by DFG grant STE 710-6-1. We gratefully acknowledge support by Leibniz-Institut für Astrophysik Potsdam and the Bulgarian Academy of Sciences.