Archives of Photographic PLates for Astronomical USE

Previews of photographic plates (applause_dr3.preview)

The table has 88368 rows, 13 columns.


The preview table registers information on files you can download from the APPLAUSE site. (previews, etc. , giving sizes, etc. A scan is a high-resolution image of a photographic plate or film. There can be multiple scans of a single plate. Unique Identifier preview_id


If you have made substantial use of the data provided by APPLAUSE DR3, kindly include this acknowledgement

Funding for APPLAUSE has been provided by DFG (German Research Foundation, Grant), Leibniz Institute for Astrophysics Potsdam (AIP), Dr. Remeis Sternwarte Bamberg (University Nürnberg/Erlangen), the Hamburger Sternwarte (University of Hamburg) and Tartu Observatory. Plate material also has been made available from Thüringer Landessternwarte Tautenburg.


Name Type UCD Unit Description
preview_id int

Preview identification number

plate_id int

Plate identification number

archive_id int

Archive identification number

preview_type short meta.code

Preview type: 1 - photograph of the plate (before cleaning), 2 - scan of the plate (before cleaning), 3 - downscaled version of the full-resolution plate scan

filename char meta.ref

Name of the processed file

file_format char meta.code.class

File format

image_width short phys.size

Width in pixels of the digitized log-page image

image_height short meta.number

Height in pixels of the digitized log-page image

image_datetime char meta.number

Time of creation of the digital image

file_datetime char time.creation
Time[yyyy-mm-dd hh:mm:ss]

Timestamp of the last change of file

file_size int meta.number

File size

timestamp_insert char time.creation Time[yyyy-mm-dd hh:mm:ss]

Timestamp of insert

timestamp_update char time.creation Time[yyyy-mm-dd hh:mm:ss]

Timestamp of last update