Archives of Photographic PLates for Astronomical USE

APPLAUSE Data Release 1 published

The APPLAUSE Data Release 1 (DR1) contains digitized phtographic plates from the Bamberg, Hamburg and Potsdam observatories. Over 25 thousand plate scans and a catalogue of over 1.6 billion extracted sources are available to the astronomy community and to the public. The oldest published plates date back to 1909 and the newest are from 1976. The majority of plate scans include astrometric solutions, making it possible to match the historic observations with contemporary object catalogues.

Plates in DR1 cover 98.9% of the entire sky, as illustrated with the following image. In the image, North is up and areas with no data are shown in grey.

APPLAUSE DR1 sky coverage (equatorial)

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