I have an idea for an experiment to see how the distribution of photons changes when they are emitted from a moving photon source. This is a continuation of an earlier discussion here with added information and more questions. "What happens to a photon wave packet when half out of a moving device?” https://www.physicsforums.com/showthread.php?p=4095957#post4095957 For a stationary source the distribution pattern of photons might be something like a bell curve. For a source in motion, normalize the location of the photons to the direction of the source, adjusting for the speed of light. Will the bell curve get wider due only to experimental error? Or will the source motion have a widening effect on the distribution of photons? The experiment could be done by spinning a fluorescent molecule with lasers. Motion in the direction of the photon travel would be expected to cause red shift or blue shift, but that's not what I’m interested in since that is well known. The direction of motion I’m interested in is other than that, a "sideways" or perhaps "radial" motion. I am particularly interested in how quantum uncertainties affect the direction of photons relative to the source as the source moves, so the photon pattern is not as easy to predict as if the source was stationary. How might theoretical gaps between relativity and quantum mechanics affect the outcome of this experiment, if at all. I am not a trained physicist and am asking for people to help with this if interested. I would like to get an experiment like this done and would welcome any ideas on how I can make this happen.