Hot subluminous stars at high galactic latitudes. I. Spectra and Stromgren photometry.

Spectra of 92 stars selected from the Palomar-Green Catalog, most of them being hydrogen-rich (53) or helium-rich (21) hot subdwarfs, are presented. The rest belong to other spectral types, e.g. HBB or main-sequence B stars. Also presented is Stromgren photometry for 39 stars of the Palomer-Green Catalog, 29 of them belonging to the spectroscopically observed sample. The observations and their reduction are described and a spectral classification of the stars is given based on the spectra published here.