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Using an optical vortex coronagraph and simple adaptive optics techniques wehave made the first convincing demonstration of an optical vortex coronagraphthat is coupled to a star gazing telescope. In particular we suppressed by 97%the primary star of a barely resolvable binary system, Cor Caroli, having aneffective angular separation of only 1.4 lambda/D. The secondary star sufferedno suppression.

Contrast Enhancement of Binary Star System Using an Optical Vortex Coronagraph