Abstract
The sun's gravitational field should cause a parallel beam of neutrinos passing close to the center of the sun to come to a focus at a distance of approximately 5000 solar radii. Because of the combined effect of hyperbolic aberration and solar gravity mode oscillations, the resolution of this gravitational lens is about 0.001 seconds of arc, and the neutrino flux within several kilometers of the focal point is amplified by a factor on the order of a million. This factor is too small to permit the detection of any known extrasolar source with current technology.
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