Xestia castanea, the grey rustic or neglected, is a moth of the family Noctuidae. It is found from central Europe to Morocco, Turkey, Lebanon, Israel, Jordan and Syria.
https://en.wikipedia.org/wiki/Einstein_field_equations
If we study when the sun bent the light of the stars behind it, which above terms have the largest influence, and which can be neglected? (I think that the third term can be neglected for such phenomena.)
And what changes when we are close...