UBVRI CCD Photometry of Open Cluster Cluster NGC 7789

Details UBVRI CCD Photometry of Open Cluster Cluster NGC 7789 UBVRI CCD Photometry of Open Cluster Cluster NGC 7789

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.5835g&link_type=abstract

American Astronomical Society, AAS Meeting #211, #58.35; Bulletin of the American Astronomical Society, Vol. 39, p.839

Astronomy and Astrophysics

Astronomy

Scientific paper

We report UBVRI photometric data for the moderately old, very rich open cluster NGC 7789, taken with the WIYN 0.9-meter telescope. The data were analyzed using spatially variable psf-fitting techniques from Daophot II, after which (small) spatially-dependent aperture corrections were applied. Using the Hyades, Cardelli et al. extinction relations, and Yale-Yonsei isochrones, we find E(B-V)=0.24 ± (0.01 + sys), [Fe/H]=0.17 ± (0.05 + sys), be D=2163.7 pc ± (99.7 pc + sys), and age = 1.38 Grys ± (0.05 Gyrs + sys). This work has been supported by the National Science Foundation under grants AST-0452975 and AST-0206202.

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