KOEN
Seogeochado (서거차도등대) in the middle, with the lights within 20 km, in their listed colours.
Seogeochado (서거차도등대) — light characteristic, height, range
One white flash every 6 seconds
Count 6 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 6s 30m 9M
- Height
- 30 m
- Nominal range
- 9 nmi = 17 km
- Type
- Landfall / major light
- Position
- 34.2570°N, 125.9255°E · West Sea coast

Lights nearby
- Seogeocha Hang (서거차항 돌제부두 등주)One yellow flash every 6 seconds · 1.2 km
- Donggeochado (동거차도등표)2 green flashes every 6 seconds · 1.3 km
- Seogeocha Hang E Breakwater (서거차항 동방파제 등대)One red flash every 4 seconds · 1.4 km
- Seogeocha Hang W Breakwater (서거차항 서방파제 등대)One green flash every 4 seconds · 1.5 km
- Saewol (세월등부표)One yellow flash every 5 seconds · 6.4 km
- Yeonchulseo (연출서 남방등표)6 quick white flashes + one long every 15 seconds · 6.7 km
- Geomado (거마도등대)One white flash every 4 seconds · 6.8 km
- Jukdo (죽도등대)One white flash every 10 seconds · 8.0 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