KOEN
Tomogashima in the middle, with the lights within 20 km, in their listed colours.
Tomogashima — light characteristic, height, range
Alternating white and red every 10 seconds
White.Red.Once around every 10 seconds.
- Characteristic
- Al Fl WR 10s
- Height
- 60 m
- Nominal range
- 20 nmi = 37 km
- Type
- light major
- Position
- 34.2809°N, 135.0005°E

Lights nearby
- Kita Ku (Kita Ku)Green, 3 s on and 3 s off · 12 km
- Red, 3 s on and 3 s off · 12 km
- 2 green flashes every 7 seconds · 14 km
- Minami Ku Auxiliary (Minami Ku Auxiliary)One red flash every 3 seconds · 14 km
- 2 red flashes every 7 seconds · 14 km
- One green flash every 3 seconds · 18 km
- NU SHIMA (沼島灯台)One white flash every 10 seconds · 20 km
- Tomari Ko (沼島港泊防波堤灯台)Red, dark once 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