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- For "principal point" in optics, see Cardinal point (optics).
- For "principal point" in computer vision, see Pinhole camera model.
Principal Point (Coordinates: ) is a prominent ice-covered headland lying 4 nautical miles (7 km) east of Cape Errera and forming the southeast end of Wiencke Island, in the Palmer Archipelago. First charted by the French Antarctic Expedition under Charcot, 1903–05. The name, applied by the Argentine Antarctic Expedition, 1953–54, suggests the prominence of the feature.
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