KOEN
Usedo (우세도등대) in the middle, with the lights within 20 km, in their listed colours.
Usedo (우세도등대) — light characteristic, height, range
One white flash every 4 seconds
Count 4 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 4s 68m 11M
- Height
- 68 m
- Nominal range
- 11 nmi = 20 km
- Type
- Landfall / major light
- Position
- 34.7908°N, 125.9080°E · West Sea coast
Lights nearby
- Usedo (우세도 남방등표)6 quick white flashes + one long every 15 seconds · 601 m
- Wonpyeong Hang (원평항 동방파제 등대)2 green flashes every 6 seconds · 1.1 km
- Wonpyeong Hang (원평항 서방파제 등대)2 red flashes every 6 seconds · 1.1 km
- Bigeumdo Weather Tower (비금도 북서방 신안블루 기상탑등)Morse U (··−) in white every 10 seconds · 5.7 km
- Jangguseo (장구서등대)One white flash every 5 seconds · 7.6 km
- Dochodo (도초도등대)One white flash every 6 seconds · 7.7 km
- Bigeum Bridge (비금 도초 연도교 교량등)Steady green light · 8.5 km
- Bigeum Bridge (비금 도초 연도교 교량등)Steady white light · 8.5 km
Not for navigation. Use official NOAA charts and USCG Local Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: KHOA light list (국립해양조사원 등대표) (opens in a new tab) · Checked