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Published online by Cambridge University Press: 07 August 2017
Field #3 of the Palomar–Groningen survey (PG3) is thought to be ideal for the study of stellar evolution in the Galactic Bulge (GB). In this field the work of Plaut (1973) and Wesselink (1987) is extended with the aim of constructing a Color Magnitude Diagram (CMD) for a great many stars. This is done by means of automated photographic photometry.