We present CCD UBVI photometry of the Centaurus open cluster Ruprecht 166. Our data reveal that it is a true star cluster of 2 radius located at a distance of d=6.6 kpc and with and age of 56 Myr old. This cluster becomes an excellent spiral arm tracer since it is placed in the external tangent of the Scutum-Centaurus spiral arm. We have also analyzed the stellar field against which the cluster is projected; thus finding the presence of a strip of young stars extending from Sagitarius-Carina to Scutum-Centaurus composing a sort of stellar bridge. FULL TEXT IN SPANISH
Ruprecht 166: un trazador del brazo espiral de Scutum-Centaurus
CARRARO, GIOVANNI;
2013
Abstract
We present CCD UBVI photometry of the Centaurus open cluster Ruprecht 166. Our data reveal that it is a true star cluster of 2 radius located at a distance of d=6.6 kpc and with and age of 56 Myr old. This cluster becomes an excellent spiral arm tracer since it is placed in the external tangent of the Scutum-Centaurus spiral arm. We have also analyzed the stellar field against which the cluster is projected; thus finding the presence of a strip of young stars extending from Sagitarius-Carina to Scutum-Centaurus composing a sort of stellar bridge. FULL TEXT IN SPANISH
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