KOEN
Gonggojisan (공고지산등대) in the middle, with the lights within 20 km, in their listed colours.
Gonggojisan (공고지산등대) — light characteristic, height, range
One white flash every 6 seconds
Count 6 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 6s 28m 9M
- Height
- 28 m
- Nominal range
- 9 nmi = 17 km
- Visible sector
- W 230°∼066°(196°)
- Type
- Landfall / major light
- Position
- 34.3682°N, 126.9476°E · South Sea coast

Lights nearby
- Choyakdo (조약 생일 한광본 A호 등부표)4 yellow flashes every 8 seconds · 1.0 km
- Dangmok Hang (당목항 완도군 등부표)4 yellow flashes every 8 seconds · 1.2 km
- Iljeong Hang (일정항 완도군 등부표)4 yellow flashes every 8 seconds · 3.5 km
- Iljeong Hang (일정항등대)2 white flashes every 6 seconds · 3.6 km
- Choyakdo (조약 생일 한광본 B호 등부표)4 yellow flashes every 8 seconds · 3.9 km
- Eodu-ri (어두리등표)3 quick white flashes every 10 seconds · 4.4 km
- Hyeoldo (혈도등대)One white flash every 4 seconds · 4.4 km
- Deugam Hang W Breakwater (득암항 서방파제 등대)One green flash every 4 seconds · 5.1 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