KOEN
Sentinel Island Light in the middle, with the lights within 20 km, in their listed colours.
Sentinel Island Light — light characteristic, height, range
One white flash every 10 seconds
Count 10 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 10s
- Height
- 86 ft · 26 m
- Nominal range
- 14 nmi = 26 km
- Remarks
- Obscured from 152° to 296°.
- Position
- 58.5463°N, 134.9232°W · AK

Lights nearby
- Poundstone Rock Lighted Bell Buoy PR2+1 red flashes every 6 seconds · 2.0 km
- Little Island LightOne white flash every 4 seconds · 7.2 km
- Vanderbilt Reef LightOne white flash every 2.5 seconds · 7.4 km
- Aaron Island Light 2One red flash every 2.5 seconds · 13 km
- Faust Rock Lighted Bell Buoy FR2+1 red flashes every 6 seconds · 14 km
- Point Retreat LightOne white flash every 6 seconds · 15 km
- Tee Harbor LightOne white flash every 6 seconds · 16 km
- Favorite Reef B 2One red flash every 4 seconds · 19 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