5028 V/28 Proper Motions, UBV Photometry, Four Open Clusters V N Frolov Pulkovo Obs., unpublished ??? ??? 1980 1980 Clusters, open Proper motions Photometry, UBV Regional catalog Proper motions were determined for 2169 stars with limiting magnitude B = 16.5 mag and located within a 60 x 60 area centered at RA = 23 h 54.2 min, Dec = 60 deg 57 arcmin (1950.0). Three plate pairs with a mean epoch difference of 49 years were used. The first epoch plates were taken with the Tashkent normal astrograph during 1923-1925 and the second epoch plates with the Pulkovo normal astrograph. The proper motions have a mean error +/-0.0030 arcsec (B < 14.5 mag) and +/-0.0036 arcsec (B > 14.5 mag) and were measured relative to reference stars with 13.5 mag <= B <= 14.5 mag. Photographic UBV magnitudes were measured using Sandages photoelectric standards. The U, B and V magnitudes were determined for 1930, 2165 and 1734 stars respectively, with the corresponding mean errors +/-0.03 mag, +/-0.06 mag and +/-0.05 mag. In the measured area there are three known open clusters (NGC 7788, NGC 7790 and Berkeley 58) and a previously unknown open cluster, discovered by the author, centered at RA =23 h 54.9 min, Dec = 61 deg 21 arcmin (1950.0). The cluster members were selected on the basis of the proper motion (vector diagram) and photometric (V ~ B-V and U-B ~ B-V) criteria. Stars within areas with 4 arcmin radii centered on NGC 7788 and NGC 7790 and 6 arcmin radii centered on Berkeley 58 and the anonymous cluster were investigated for cluster membership. The method of reduction of the observational data and the results obtained have been published in Izv. Pulkovo 195, 80, 1977 and 196, 69, 1979.

ID Star Number --- X X-Coordinate mm Y Y-Coordinate mm V V Magnitude The following stars are known variables 327 - Cepheid CG Cas 693 - Algol Type Variable 893 - Double Cepheid CE Cas 903 - Cepheid CF Cas mag B-V B-V color index mag U-B U-B color index mag pmX X-annual proper motion 10-4arcmin/a pmY Y-annual proper motion 10-4arcmin/a Cl_mem Cluster Membership Cluster Membership Designation 7788 = member of NGC 7788 7790 = member of NGC 7790 58 = member of Berkeley 58 1 = member of anonymous cluster 0 = no designation --- Julie Anne Watko SSDOO/ADC 1996May30 V_28.xml