UBVRI photometry of FK5 Ext. stars

Table 1 includes: the star number in the E-regions; the HD or CPD number; the V magnitude; the B-V, U-V, V-R and R-I color indices; e, the mean square error of the averages...表1包含如下内容：E区域内的恒星编号；HD（亨利·德雷珀星表，Henry Draper Catalogue）或CPD（好望角照相巡天星表，Cape Photographic Durchmusterung）编号；V星等；B-V、U-V、V-R及R-I色指数；平均值的均方误差e……