Review on IAU Work for Preservation and Digitization of Astronomical Photographic Plates and Suggestions of Plates Digitization in China

Astronomy and Astrophysics – Astronomy

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Astronomy, Digitization Of Astronomical Photographic Plate, Plate Preservation, Plate Scan, Astronomy, Review, Digitization Of Astronomical Photographic Plates, Plate Preservation, Plate Scan

Scientific paper

The progress on digitization of astronomical plates, including plate preservation, the significance of digitizing plates and technique of plate digitization is described. The International Virtual Observatory Alliance (IVOA) and the Spectroscopic Virtual Observatory (SVO) as well as the relationship between plate digitization and VO are briefly introduced. Based on the investigation there are 30,000 archive plates, including spectrograms, which were taken with the 60/90 cm Schmidt telescope at National Astronomical Observatories and 60 cm reflector at Purple Mountain Observatory. Most of these plates were photographed in 1970 - 1980. Now the work of plate digitization is not developed and plate preservation is not satisfactory except those kept at plate archive room of Qing Dao Observatory. 5 suggestions about preservation and digitization of Chinese photographic plates are presented: 1) The project of plate digitization in China will be included in the Virtual Observatory at the National Astronomical Observatory. 2) The cooperative group will be organized and established. The members of this group coming from each observatory are responsible for this work. This "plate digitization" group is a subgroup of Virtual Observatory. 3) Under the leadership of this cooperative group 5 items will be done as soon as possible. 4) Plate digitization is a common task for astronomy in China, which will be supported by Astronomy Division, Chinese Accademy of Sciences and the National Nature Science Foundation. The cooperative group will arrange the finance. 5) Finally we recognize that the historic astronomical plates are common wealth for Chinese astronomers. Through the project of plate digitization will be rescued and become an important part of database in China-VO as well as the current astronomical research will be supported with using these information.

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