KOEN
Kudako Sima (クダコ島) in the middle, with the lights within 20 km, in their listed colours.
Kudako Sima (クダコ島) — light characteristic, height, range
White, 3 s on and 3 s off
On for 3 seconds.Off for 3 seconds.Begin again.
- Characteristic
- Iso W 6s
- Nominal range
- 19 nmi = 35 km
- Type
- light major
- Position
- 33.9691°N, 132.5640°E

Lights nearby
- Nasake Sima. (Nasake Sima.)One white flash every 3 seconds · 8.5 km
- Red, 2 s on and 2 s off · 17 km
- One red flash every 5 seconds · 18 km
- One red flash every 3 seconds · 19 km
- Yanagihara Ko (Yanagihara Ko)Green, 3 s on and 3 s off · 19 km
- Hazumano Hana (Hazumano Hana)White, dark once every 8 seconds · 19 km
- One red flash every 3 seconds · 20 km
- Siode Iso (Siode Iso)Morse A (·−) in red every 8 seconds · 21 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