Bibcode
Vicente, B.; Garzón, F.
Referencia bibliográfica
Highlights of Spanish Astrophysics V, Astrophysics and Space Science Proceedings. ISBN 978-3-642-11249-2. Springer-Verlag Berlin Heidelberg, 2010, p. 443
Fecha de publicación:
2010
Número de citas
0
Número de citas referidas
0
Descripción
We present an astrometric catalogue of positions and proper motions
derived from the Carte du Ciel plates of the San Fernando zone,
photographic material with a mean epoch 1901.4 with a limiting magnitude
V˜15.Digitization has been made using a conventional flatbed
scanner. Special techniques have been developed to handle the
combination of plate material and the large distortion introduced by the
scanner. A variety of post-scan corrections are shown to be necessary.
The equatorial coordinates are on the ICRS system defined by Tycho-2.
Comparison with the reference catalog indicates external errors of 0.2''
The UCAC2 Catalogue was used as second-epoch positions to derive proper
motions with a mean accuracy of 1.2 mas/year for the proper motions for
well-measure stars. The usefulness of the resulting catalogue of proper
motions is demonstrated by means of a proper-motion analysis of seven
open clusters ASCC 30, BOCHUM 3, NGC 2215, NGC 2302, NGC 2311, NGC 2323
and NGC 2548, determining individual membership probabilities and
characterizing the gross properties of each cluster.