KOEN
Inge Sima (院下島灯台) in the middle, with the lights within 20 km, in their listed colours.
Inge Sima (院下島灯台) — light characteristic, height, range
2 white flashes every 10 seconds
Count 10 seconds.Flash white, 2 times.Begin again.
- Characteristic
- Fl(2) W 10s
- Height
- 73 m
- Nominal range
- 7 nmi = 13 km
- Type
- light minor
- Position
- 34.6513°N, 134.4355°E

Lights nearby
- Boze Ko (Boze Ko)One red flash every 3 seconds · 6.7 km
- Boze Ko (Boze Ko)Steady green, brighter flash every 4 seconds · 6.9 km
- Matu Sima (Matu Sima)One white flash every 3 seconds · 7.4 km
- Boze Shima, N. head. (Boze Shima, N. head.)One green flash every 3 seconds · 7.6 km
- Boze Sima (Boze Sima)2 green flashes every 7 seconds · 7.7 km
- Ako (Ako)6 quick white flashes every 15 seconds · 8.4 km
- 2 green flashes every 6 seconds · 9.6 km
- Iesima Ko (Iesima Ko)One green flash every 3 seconds · 9.7 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