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Qmechanic
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Does the index of refraction of the sunssun's corona and solar wind contribute to the bending of light

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Stevan V. Saban
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Does the index of refraction of the suns corona and solar wind contribute to the bending of light

It's not hard to imagine that the sun's corona and surrounding solar winds have an optical density that can affect the index of refraction near the surface of the sun and bend light in these regions. Is this effect appreciable? Is it included in general relativity calculations for gravitational lensing?