KOEN
Inubōsaki Lighthouse (犬吠埼燈台) in the middle, with the lights within 20 km, in their listed colours.
Inubōsaki Lighthouse (犬吠埼燈台) — light characteristic, height, range
One white flash every 15 seconds
Count 15 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 15s
- Height
- 52 m
- Nominal range
- 19 nmi = 35 km
- Type
- light major
- Position
- 35.7079°N, 140.8685°E

Lights nearby
- Nagasakibana Ichinoshima Lighthouse (長崎鼻一ノ島照射灯)Steady white light · 1.7 km
- Togawa Ko (Togawa Ko)One red flash every 4 seconds · 2.3 km
- Choshi Ko No.2 (Choshi Ko No.2)One red flash every 5 seconds · 4.1 km
- Steady red light · 4.3 km
- Steady red, brighter flash every 4 seconds · 4.5 km
- Ichino Shima (Ichino Shima)White, 2 s on and 2 s off · 4.6 km
- Tyosi Ko (Tyosi Ko)One green flash every 3 seconds · 4.7 km
- 2 green flashes every 6 seconds · 5.0 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