KOEN
Akkeshi (厚岸灯台) in the middle, with the lights within 20 km, in their listed colours.
Akkeshi (厚岸灯台) — light characteristic, height, range
One white flash every 10 seconds
Count 10 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 10s
- Height
- 111 m
- Nominal range
- 12 nmi = 22 km
- Type
- light major
- Position
- 42.9482°N, 144.8657°E

Lights nearby
- Red, 2 s on and 2 s off · 5.2 km
- Akkesi Ko breakwater (Akkesi Ko breakwater)2 red flashes every 6 seconds · 11 km
- Morse B (−···) in green every 8 seconds · 11 km
- Morse C (−·−·) in green every 10 seconds · 11 km
- Green, dark once every 4 seconds · 122 km
- 2 green flashes every 6 seconds · 150 km
- Monbetsu (Monbetsu)One white flash every 10 seconds · 198 km
- No.1 (No.1)One green flash every 3 seconds · 267 km
Not for navigation. Use the country's official charts and Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: OpenStreetMap seamarks (OSM) (opens in a new tab) · Checked