A CATALOG OF BLUE HORIZONTAL-BRANCH STARS IN THE OUTER GALACTIC HALO

We present a sample of faint blue stars at medium to high galactic lat itude, a classify the stars as blue horizontal branch (BHB) or probabl e non-BHB stars on the basis of medium dispersion spectra and broadhan d photoelectric BV photometry. The classification scheme (Flynn et al. 1993) is as accurate as Stromgren photometry. Using this method we ha ve identified a sample of 100 BHB objects in the galactic halo to fain t magnitudes (13.5 < V < 19.5), the selection criteria ensuring that t he sample is the cleanest to date. We analyse the kinematics of the BH B stars in a subsequent paper.