From what I understood, $1.75''$ was the predicted value derived by Einstein.
Is it possible that light from the star, at the time of solar eclipse, can also be bent somehow by the solar particles near the sun?
Is it possible that the electromagnetic field from the sun influenced the light ray from the star, since light is an electromagnetic wave?
Is it possible that the ejected charged particles near the sun created an atmosphere that interfered and contributed in bending the light?
And also if one could provide a reference where these are dealt with, please drop me a link.
Any suggestions or clarification is welcomed.
I just wanted to know if the above conditions would be possible and their contribution was accounted for in considering the measurement was indeed a gravitational influence in this particular experiment. Thank you.