Revista mexicana de astronomía y astrofísica

 

uvby — β Photoelectric photometry of NGC 7063

 

J. H. Peña,¹ L. Fox Machado,² and R. Garrido³

 

1 Instituto de Astronomía, Universidad Nacional Autónoma de México, México.
J. H. Peña: Instituto de Astronomía, Universidad Nacional Autónoma de México, Apdo. Postal 70–264, México, 04510 D. F., México (jhpena@astroscu.unam.mx).

2 Instituto de Astronomía, Universidad Nacional Autónoma de México, Ensenada, B. C., México.
L. Fox Machado: Instituto de Astronomía, Universidad Nacional Autónoma de México, Apdo. Postal 877, 22860 Ensenada, B. C., México (lfox@astrosen.unam.mx).

3 Instituto de Astrofísica de Andalucía, Spain.
R. Garrido: Instituto de Astrofísica de Andalucía, Camino Bajo de Huétor 50, Granada E–18008, Spain (garrido@iaa.es).

 

Received 2007 January 25
Accepted 2007 July 3

 

Resumen

Mediante fotometría de 75 estrellas en la dirección de NGC 7063 se ha determinado la membresía de algunas estrellas, establecido su distancia (722 ± 105 pc), su edad (log edad de 8.146) y su enrojecimiento (E(b — y) = 0.091 ± 0.039 mag).

 

Abstract

From uvby photometry of 75 stars in the direction of NGC 7063 we were able to determine membership of some stars and fix the distance (722 ±105 pc), log age (8.146) and reddening (E(b — y) = 0.091 ± 0.039 mag) for the cluster.

Key Words: Open clusters and associations: individual (NGC 7063)—techniques: photometric

 

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Acknowledgement

We would like to thank the staff of the OAN for their assistance in securing the observations. This work was partially supported by Papiit IN108106 and Conacyt through grants 3925E, E130–3059 and collaboration programs with the CSIC (Spain) which allowed reciprocal visits. Typing and proofreading were done by J. Orta, and J. Miller, respectively. C. Guzman and A. Diaz assisted us in the computing. This research has made use of the Simbad databases operated at CDS, Strasbourg, France; NASA ADS Astronomy Query Form and the WEBDA database, operated at the Institute for Astronomy of the University of Vienna.

 

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