Navigation General · Light Characteristics
An OCCULTING light is one in which:
- AThe period of light is less than the period of darkness
- BThe period of light is equal to the period of darkness
- CThe period of darkness is less than the period of light✓ Correct
- DThe light flashes more than 60 times per minute
Explanation
An Occulting (Oc) light is on MORE than it is off — the duration of darkness (eclipse) is always less than the duration of light. This is the opposite of a flashing light.
Authority: 33 CFR 62 (U.S. ATON System)
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