Astrophotography Anomaly Detector

What this doesn't do: no star-based registration/plate-solving — this assumes a static tripod and compares frames exactly as uploaded, in order. It does not distinguish meteors from satellites (tested against synthetic ground truth and found unreliable to do with position drift alone — a satellite's frame-to-frame shift is almost entirely along its own line direction, which looks geometrically like a stationary flash). Every detection is labeled "possible meteor or satellite trail," never a confident classification — always check the preview crop visually.