What is the visual representation of an airport beacon?

The visual representation of an airport beacon is typically depicted as a circle with a star inside it. This design symbolizes the function of beacons, which is to provide guidance and aid to pilots in identifying the location of the airport from the air. Beacons serve as critical navigational aids, and their distinctive shapes help ensure that they stand out visually to pilots when approaching an airport. The star inside the circle emphasizes the significance of the signal provided by the beacon, indicating safety and direction.

In contrast, the other shapes presented do not carry the same universally recognized meaning or representation associated with airport beacons, which can lead to confusion or misidentification in a navigational context. The circular shape with a star remains the most widely accepted symbol to represent airport beacons in various aviation materials and signage.