The angle of deflection for gravitational lensing around the Sun is consistently defined as 1.75 arcseconds, relative to an undeflected ray of light. This angle remains the same regardless of the observer's location, including Earth. The discussion clarifies that the deflection is not measured differently at the point of light passage or reception. For further reading, the resource provided is Einstein Online, which offers additional insights into light deflection.
PREREQUISITESAstronomers, astrophysicists, and students interested in gravitational lensing and its effects on light propagation in space.
I don't understand your question. The angle is defined relative to an undeflected ray, so it is the same angle everywhere.Macrobe said:I can't find it on that, though it is an interesting read. Very informative.