Gravitational deflection of light at 1 2 1 PPN order

We compute in parametrized form the effect of source-velocity terms in the gravitational deflection of light. Internal rotation corresponds to sources of order ³ where. We find for rigidly rotating models of the Sunand of Jupiter that, in each case, this effect is of order 10^–6 arc sec. A very high accuracy that may be achievable by future space-bourne instruments is thus necessary for its detection.