KOEN
Tanggeonnyeo (탕건여등대) in the middle, with the lights within 20 km, in their listed colours.
Tanggeonnyeo (탕건여등대) — light characteristic, height, range
One white flash every 10 seconds
Count 10 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 10s 52m 9M
- Height
- 52 m
- Nominal range
- 9 nmi = 17 km
- Type
- Landfall / major light
- Position
- 34.3668°N, 127.5101°E · South Sea coast

Lights nearby
- Sonjukdo Weather Tower (손죽도 동방 삼해 해상기상탑등)Morse U (··−) in white every 10 seconds · 5.5 km
- Narodo (나로도 B호 등부표)One white flash every 6 seconds · 8.4 km
- Goheung KSPFA No K (고흥 김생산어민연합 K호 등부표)4 yellow flashes every 8 seconds · 8.6 km
- Oenarodo Weather Tower (외나로도 남서방 고이 해양기상탑등)Morse U (··−) in white every 10 seconds · 9.0 km
- Goheung KSPFA No J (고흥 김생산어민연합 J호 등부표)4 yellow flashes every 8 seconds · 10.0 km
- Taengmunam (택문암등표)2 white flashes every 10 seconds · 10 km
- Juinnyeo (주인여등표)2 white flashes every 5 seconds · 11 km
- Oenarodo (외나로도 서방 등부표)9 quick white flashes every 15 seconds · 11 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