I don't think so, I think planets are just too small and far away to be much more than points of light (or shadows crossing in front of stars). In a lot of cas

I don't think so, I think planets are just too small and far away to be much more than points of light (or shadows crossing in front of stars). In a lot of cases, we infer the presence of planets by making very precise measurements of relative velocities of stars (using red/blue shift of light) and making note of periodic wobbles that indicate that its position is being affected by planets.