Gravitational lens effect of degenerate neutrino celestial bodies

We took the degenerate neutrino celestial body (NCO) to be transparent. We solved the geodesic equation for the light rays emitted by sources inside and outside the body. We then derived the expression for the amplication factor K by a transparent gravitational lens, and evaluated K and the redshift under the metric of the NCO. Our calculations show that, for light travelling in certain directions from sources in certain positions, the brightness may be amplified several hundred times. We point out that some quasars may be galactic nuclei inside NCOs.