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The digitization of the astronomical plate archive of Catania Astrophysical Observatory

INAF Researchers: E. Marilli
INAF Researchers Associated from University : C. Blanco
Technical Staff: V. Greco, A. Mangano, P. Massimino
Fellows: M. Cigna
The research has been financially supported by MIUR (COFIN 2002).  


The recent technologies have yielded the spread of CCD devices able to directly acquire astronomical images in digital form with a resolution of some ten of micron and a dynamics of approximately two orders of magnitude greater than that one of an ordinary photographic emulsion and on which it is possible to make use of quick and efficient methods and software of reduction and analysis of the data. The use of these techniques, applied to the photographic plates, will allow the extraction of their immense scientific patrimony of information in the various fields of astronomical surveying, from the stellar variability, to stellar and galactic dynamics, to the location of Near-Earth Asteroids.

Large quantity of information is contained in photographic archives of many italian scientific institutions with plates dating back to the end of XIXth. An accurate digitation of such patrimony is therefore of fundamental importance both for the preservation of their volatile support and for the fuller exploitation of the scientific conent. With this purpose a collaboration among some Italian Observatories and the Specola Vaticana was set up.



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Innocenza Busa' 2005-11-14