J/A+AS/114/1 J/A+AS/114/1 CCD UBVI photometry of NGC 6791 J Kaluzny S M Rucinski Astron. Astrophys. Suppl. Ser. 114 1 1995 1995A&AS..114....1K Clusters, open Photometry, CCD Hertzsprung-Russell (HR diagram) novae, cataclysmic variables open clusters and associations: individual (NGC 6791) Three new photometric CCD-based datasets are presented for NGC 6791. They consist of deep UBV photometry (to V_lim_=24, B_lim_=24, U_lim_=23) of the central parts of the cluster and of selected fields around it, and of relatively shallower UBVI photometry for the whole cluster (23'x23'). The data have been used to discuss the reddening, metallicity and age of NGC 6791.

ID ID number --- Xpos X coordinate (toward South); 1 pixel=0.68 arcsec pix Ypos Y coordinate (toward West); 1 pixel=0.30 arcsec pix Vmag V magnitude mag e_Vmag rms uncertainty on V magnitude mag o_Vmag Number of averaged V magnitude measurement --- q_Vmag Quality flag for V magnitude number=1 q=1 means relatively poor quality --- B-V B-V colour index mag e_B-V rms uncertainty on B-V number=2 negative sigma means "unknown color" mag o_B-V Number of averaged B measurements --- q_B-V Quality flag for B-V number=1 q=1 means relatively poor quality --- U-B U-B colour index mag e_U-B rms uncertainty on U-B number=2 negative sigma means "unknown color" mag o_U-B Number of averaged U measurements --- q_U-B Quality flag for U-B number=1 q=1 means relatively poor quality --- V-I V-I colour index mag e_V-I rms uncertainty on V-I number=2 negative sigma means "unknown color" mag o_V-I Number of averaged I measurements --- q_V-I Quality flag for V-I --- Simona Mei CDS 1995Jun25J. Kaluzny & S.M. Rucinski <jka@sirius.astrouw.edu.pl> <rucinski@astro.utoronto.ca> J_A+AS_114_1.xml