Gravitational Lensing Characteristics of the Transparent Sun

@article{Patla2008GravitationalLC,
  title={Gravitational Lensing Characteristics of the Transparent Sun},
  author={Bijunath R. Patla and Robert J. Nemiroff},
  journal={The Astrophysical Journal},
  year={2008},
  volume={685},
  pages={1297-1303}
}
The transparent Sun is modeled as a spherically symmetric and centrally condensed gravitational lens using recent standard solar model (SSM) data. The Sun's minimum focal length is computed to a refined accuracy of 23.5 ± 0.1 AU, just beyond the orbit of Uranus. The Sun creates a single image of a distant point source visible to observers inside this minimum focal length and to observers sufficiently removed from the line connecting the source through the Sun's center. Regions of space are… 

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