Definition
A beacon is rigidly attached to the ground rather than moored, so its position is exact and it does not swing with tide or wind. Unlit beacons are termed daymarks or perches. Beacons carry the same colours and topmarks as the equivalent buoys, and chart symbols distinguish them by a solid base rather than the sloped buoy symbol. Being fixed, a lit beacon makes a more reliable object for a compass bearing or clearing line than a buoy.
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