KOEN
飛島南灯台 in the middle, with the lights within 20 km, in their listed colours.
飛島南灯台 — light characteristic, height, range
3 white flashes every 17 seconds
Count 17 seconds.Flash white, 3 times.Begin again.
- Characteristic
- Fl(3) W 17s
- Height
- 28 m
- Nominal range
- 12 nmi = 22 km
- Type
- light minor
- Position
- 39.1859°N, 139.5412°E

Lights nearby
- One red flash every 3 seconds · 614 m
- One green flash every 3 seconds · 912 m
- 飛島灯台One white flash every 10 seconds · 2.0 km
- 2 yellow flashes every 6 seconds · 76 km
- 2 yellow flashes every 6 seconds · 76 km
- 2 yellow flashes every 6 seconds · 76 km
- 2 yellow flashes every 6 seconds · 76 km
- 2 yellow flashes every 6 seconds · 77 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