KOEN
Libby Island Light in the middle, with the lights within 20 km, in their listed colours.
Libby Island Light — light characteristic, height, range
2 white flashes every 20 seconds
Count 20 seconds.Flash white, 2 times.Begin again.
- Characteristic
- Fl (2)W 20s
- Height
- 91 ft · 28 m
- Nominal range
- 18 nmi = 33 km
- Structure
- White tower.
- Remarks
- Emergency light of reduced intensity when main light is extinguished. HORN: 1 blast ev 15s (2s bl). MRASS-Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 60 minutes.
- Position
- 44.5683°N, 67.3674°W · ME
Lights nearby
- Starboard Island Aquaculture Lighted Buoy SI-SWOne yellow flash every 2.5 seconds · 3.9 km
- Starboard Island Aquaculture Lighted Buoy SI-SEOne yellow flash every 2.5 seconds · 4.0 km
- Starboard Island Aquaculture Lighted Buoy SI-NWOne yellow flash every 2.5 seconds · 4.5 km
- Starboard Island Aquaculture Lighted Buoy SI-NEOne yellow flash every 2.5 seconds · 4.5 km
- Cross Island Aquaculture Lighted Buoy CI-SouthwestOne yellow flash every 2.5 seconds · 6.3 km
- Cross Island Aquaculture Lighted Buoy CI-SoutheastOne yellow flash every 2.5 seconds · 6.4 km
- Cross Island Aquaculture Lighted Buoy CI-NortheastOne yellow flash every 2.5 seconds · 6.8 km
- Cross Island Aquaculture Lighted Buoy CI-NorthwestOne yellow flash every 2.5 seconds · 6.8 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