Initial Results With the Objective Prism of the Uk Schmidt Telescope

Abstract The U. K. 1.2m Schmidt objective prism with its small apex angle (23’12”) and high ultraviolet transmission is a particularly powerful tool for the study of faint objects. It has been shown that objects of 20m and fainter can be reached on a 60 minute exposure of unwidened spectra on hypersensitized IIIa-J emulsion. A description of the prism and its performance has already been published (Nandy et al. 1977).