KOEN
Jagyakdo (작약도등대) in the middle, with the lights within 20 km, in their listed colours.
Jagyakdo (작약도등대) — light characteristic, height, range
One white flash every 10 seconds
Count 10 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 10s 58m 11M
- Height
- 58 m
- Nominal range
- 11 nmi = 20 km
- Type
- Landfall / major light
- Position
- 37.4973°N, 126.5899°E · West Sea coast

Lights nearby
- Yeongjongdo (인천 국제공항 송수관로 A호 등부표)4 yellow flashes every 8 seconds · 268 m
- Yeongjongdo (인천 국제공항 송수관로 B호 등부표)4 yellow flashes every 8 seconds · 375 m
- Incheon Hang (인천항 33호 등부표)One green flash every 4 seconds · 461 m
- Incheon Hang (인천항 31호 등부표)3 green flashes every 7 seconds · 933 m
- Incheon No A (인천 북항 부경 A호 등부표)4 yellow flashes every 8 seconds · 1.1 km
- Incheon Hang (인천항 대한항공 A호 등대)4 yellow flashes every 8 seconds · 1.2 km
- Incheon Hang (인천항 대한항공 B호 등대)One yellow flash every 6 seconds · 1.2 km
- Yeongjongdo (인천 국제공항 송수관로 C호 등부표)4 yellow flashes every 8 seconds · 1.2 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