Search the Photographic Plate Collection
The digitized images of the Harvard College Observatory's Photographic Plate Archive may be searched by object identifier, celestial coordinates, date range, or by plate number.
Blank fields imply a wildcard. Only one exposure is displayed for each scanned or fitted plate. Use the browser "stop" button to interrupt the search.
WCS Fitted Plates Scanned Plates Unscanned Plates Entire Database
Search inner spatial bins of unfitted plates
Blank fields imply a wildcard. Only one exposure is displayed for each scanned or fitted plate. Use the browser "stop" button to interrupt the search.
(600 or less arcsecs)
(yyyy-mm-dd or year. frac)
(yyyy-mm-dd or year. frac)
(yyyy-mm-dd or year. frac)
WCS Fitted Plates Scanned Plates Unscanned Plates Entire Database
Search inner spatial bins of unfitted plates
(20000 or less)
|
Heliocentric Julian UT |
Sexigesimal Decimal |
|
FITS JPEG |
TAR ZIP |
NOTE: Data from scanned plates are released in the order of Data Releases (DRs) See the data release description
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Plate list
WCS Fitted Mosaic positions obtained after June 26, 2008 used tools provided by Astrometry.net/.