KOEN
大阪常吉防波堤灯台 in the middle, with the lights within 20 km, in their listed colours.
大阪常吉防波堤灯台 — light characteristic, height, range
One red flash every 4 seconds
Count 4 seconds.Flash red, once.Begin again.
- Characteristic
- Fl R 4s
- Height
- 6 m
- Nominal range
- 3 nmi = 6 km
- Type
- light minor
- Position
- 34.6743°N, 135.4058°E

Lights nearby
- 大阪北港北灯台One red flash every 12 seconds · 320 m
- No.4 (No.4)One red flash every 3 seconds · 1.2 km
- No.3 (No.3)One green flash every 3 seconds · 1.3 km
- No.2 (No.2)One red flash every 3 seconds · 2.6 km
- No.1 (No.1)One green flash every 3 seconds · 2.6 km
- No.1 (No.1)2 green flashes every 6 seconds · 2.8 km
- No.2 (No.2)2 red flashes every 6 seconds · 2.9 km
- No.6 (No.6)One red flash every 3 seconds · 3.1 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