A MULTICOLOR SURVEY OF ABSOLUTE PROPER MOTIONS - GALACTIC STRUCTURE AND KINEMATICS IN THE DIRECTION OF THE GALACTIC-CENTER AT INTERMEDIATE LATITUDE

Bienayme et al. (1992) have published a magnitude-limited sample of pr oper motions for stars at the intermediate galactic latitude (l = 3 de grees, b = 47 degrees; alpha 1950 = 15(h)18(m), delta(1950) +02 degree s 16') for a 2 square degree field. In their study there was a lack of an accurate absolute astrometric reference due to very small number o f galaxies or extragalactic objects in the field. However, since Biena yme et al. paper, more deep photographic plates and CCD standards have been obtained. Here we have derived a new photographic photometry and proper motions for similar to 20000 stars with completeness to V simi lar to 18 in the same direction for a 15.5 square degree field. The co mbination of four glass copies of the Palomar Observatory Sky Survey ( i.e. POSS 1402 E and O and POSS 1429 E and O) has been used as a first epoch for proper motion determination. The random error of the proper motions is approximately 0.''3 century(-1) to V similar to 17. The ph otometric accuracy ranges between 0.07 to 0.10 in the V, B and U bands . We stress the importance of the magnitude and color effects in astro metric surveys of field stars. Using color-magnitude diagrams of a few cluster member stars, a new distance of 6.9+/-0.5 kpc is derived for M5 and 20.3+/-0.8 kpc for Pal 5 globular clusters. This is in good agr eement with other determinations.