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Issue A&A
Volume 388, Number 1, June II 2002
Page(s) 149 - 157
Section Stellar clusters and associations
DOI http://dx.doi.org/10.1051/0004-6361:20020447



A&A 388, 149-157 (2002)
DOI: 10.1051/0004-6361:20020447

CCD photometry in the Vilnius system in the vicinity of the globular cluster M 56

F. Smriglio1, 2, A. K. Dasgupta1, 2 and R. P. Boyle2

1  Dip. di Fisica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 2, 00185 Roma, Italy
2  Vatican Observatory, 00120 Città del Vaticano, Italy

(Received 5 July 2000 / Accepted 4 January 2002 )

Abstract
CCD observations of field stars in an area north-east of the globular cluster M 56 were obtained in six bands of the Vilnius photometric system. The data sets cover a field of $9\farcm\times9\farcm5$. An outline of the data pathway from observations to reduction via IRAF is outlined in this text. Photometry of 366 stars brighter than 18th V magnitude has been obtained and the analysis of the observational errors is discussed.


Key words: stars: fundamental parameters -- stars: general -- galaxy: globular clusters: individual: M 56

Offprint request: F. Smriglio, staff@specola.va

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© ESO 2002


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