KOEN
Unoo Zaki in the middle, with the lights within 20 km, in their listed colours.
Unoo Zaki — light characteristic, height, range
One white flash every 10 seconds
Count 10 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 10s
- Height
- 40 m
- Nominal range
- 17 nmi = 31 km
- Type
- light major
- Position
- 37.8236°N, 140.9860°E

Lights nearby
- Steady green light · 642 m
- Matukawura Ko (Matukawura Ko)One green flash every 4 seconds · 1.7 km
- One red flash every 3 seconds · 2.6 km
- Soma Ko (Soma Ko)Green, 2 s on and 2 s off · 2.8 km
- 2 red flashes every 6 seconds · 4.3 km
- Soma Ko, breakwater, NE. (Soma Ko, breakwater, NE.)2 green flashes every 6 seconds · 5.0 km
- Tohokundenryoku (Tohokundenryoku)White, dark once every 8 seconds (colours listed: white, red, green) · 17 km
- Haramati, breakwater. (Haramati, breakwater.)One green flash every 5 seconds · 18 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