KOEN
Point Bonita Light in the middle, with the lights within 20 km, in their listed colours.
Point Bonita Light — light characteristic, height, range
White, dark once every 4 seconds
Keep the white light on.Every 4 seconds, go dark once.Begin again.
- Characteristic
- Oc W 4s
- Height
- 124 ft · 38 m
- Nominal range
- 18 nmi = 33 km
- Structure
- White tower on building.
- Remarks
- Emergency light of reduced intensity when main light is extinguished. HORN: 2 blasts ev 30s (2s bl-2s si-2s bl-24s si). The sound signal can be activated by keying VHF-FM Ch. 81A 5 times within 10 seconds. AIS MMSI: 993692000
- Position
- 37.8156°N, 122.5295°W · CA
Lights nearby
- Four Fathom Bank Lighted Bell Buoy2+1 red flashes every 6 seconds · 1.1 km
- Bonita Channel Lighted Bell Buoy 3One green flash every 4 seconds · 2.2 km
- Point Diablo LightWhite, 3 s on and 3 s off · 2.7 km
- Mile Rocks LightOne white flash every 5 seconds · 3.0 km
- Bonita Channel Lighted Whistle Buoy 2One red flash every 6 seconds · 3.9 km
- Golden Gate Bridge South Pier LightOne red flash every 15 seconds · 4.6 km
- Lime Point LightOne white flash every 4 seconds · 4.6 km
- Yellow Bluff LightOne white flash every 6 seconds · 5.5 km
Not for navigation. Use official NOAA charts and USCG Local Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: U.S. Coast Guard Light List (opens in a new tab) · Checked