KOEN
Kyuroku Shima (久六島灯台) in the middle, with the lights within 20 km, in their listed colours.
Kyuroku Shima (久六島灯台) — light characteristic, height, range
One white flash every 8 seconds
Count 8 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 8s
- Height
- 20 m
- Nominal range
- 7 nmi = 13 km
- Type
- landmark
- Position
- 40.5342°N, 139.4977°E

Lights nearby
- 2 yellow flashes every 6 seconds · 94 km
- 2 yellow flashes every 6 seconds · 94 km
- 2 yellow flashes every 6 seconds · 94 km
- 2 yellow flashes every 6 seconds · 94 km
- 2 yellow flashes every 6 seconds · 95 km
- 2 yellow flashes every 6 seconds · 95 km
- 2 yellow flashes every 6 seconds · 97 km
- 2 yellow flashes every 6 seconds · 98 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