J/A+AS/108/151 J/A+AS/108/151 Open clusters CCD photometry. I. J Kaluzny Astron. Astrophys. Suppl. Ser. 108 151 1994 1994A&AS..108..151K blue stragglers Hertzsprung-Russell (HR diagram) open clusters and associations: individual (Be 22, Be 29, Be 54) We present deep BVI photometry for three previously unstudied rich and distant open clusters. The color-magnitude diagrams of all studied objects show well-defined main-sequences and clumps of helium burning giants. Estimates of age, reddening and distance are given for all target clusters. Ages of Be 54 and Be 29 are close to the age of M 67 (about 4Gyr on the scale of Geneva isochrones). Age of Be 22 is about 3Gyr. Heliocentric distance of Be 29 is estimated at 10.5 kpc while its galactocentric distance is about 19kpc. Be 29 seems to be the most distant galactic open cluster known in sense of its heliocentric as well as galactocentric distance. A clearly marked sequence of binaries is visible on the color-magnitude diagram of Be 29. Two likely candidates for evolved giants belonging to the very extended halo of Be 29 were identified. Our photometry suggests extremely low metallicity of Be 29. Several candidates for variable stars were found in the field of Be 54.

ID ID number --- X X coordinate, X axis points toward South number=1 1 pixel=0.30 arcsec pix X Y coordinate, Y axis points toward East number=1 1 pixel=0.30 arcsec pix Vmag V magnitude mag e_Vmag rms uncertainty on V mag o_Vmag Number of averaged V measurements --- q_Vmag Quality flag for V number=2 q=1 means relatively poor quality --- B-V B-V colour number=3 For table2 and table3, no value means "unknown color" mag e_B-V rms uncertainty on B-V mag o_B-V Number of averaged B measurements --- q_B-V Quality flag for B-V number=2 q=1 means relatively poor quality --- V-I V-I colour number=3 For table2 and table3, no value means "unknown color" mag e_V-I rms uncertainty on V-I mag o_V-I Number of averaged I measurements --- q_V-I Quality flag for V-I --- Patricia Bauer CDS 1994Sep26 J_A+AS_108_151.xml