in the above A is the AHEAD soho
and B is the BEHIND soho

mercury is not in a line of sight between either A or B

here are a couple of images taken by SOHO to show how SOHO sees Mercury.





anyway even if someone tried to use the SOHO images to
determine if the speed of light is fake , they are spaced apx 38 minutes apart so it would be impossible.

I guess that is a built in safeguard.







3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.