This is what a relship "looks like" coming towards you. You'd see it on your ship's telemetry provided you are also reality skimming. It can't be observed from a non-skimming platform like a station or planet. Sevildom used nervecloth tech to render spacescapes under skim. Reetions use a variety of solutions which may or may not translate to an analogy display. The inspiration for approaching ships being blue (and receding ones being red) is, of course, red-shift. But this is