KOEN
Dangsado (당사도등대) in the middle, with the lights within 20 km, in their listed colours.
Dangsado (당사도등대) — light characteristic, height, range
One white flash every 20 seconds
Count 20 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 20s 109m 23M
- Height
- 109 m
- Nominal range
- 23 nmi = 43 km
- Visible sector
- W 173°∼109°(296°)
- Type
- Landfall / major light
- Position
- 34.0980°N, 126.6024°E · South Sea coast

Lights nearby
- Ttanyeo (딴여등표)2 red flashes every 6 seconds · 4.9 km
- Yejakdo (예작도 서방등표)One red flash every 5 seconds · 5.3 km
- Yejak Bridge (예작교 교량등)Green, 2 s on and 2 s off · 5.4 km
- Yejak Bridge (예작교 교량등)Green, 2 s on and 2 s off · 5.4 km
- Yejak Bridge (예작교 교량등)White, 2 s on and 2 s off · 5.4 km
- Yejak Bridge (예작교 교량등)White, 2 s on and 2 s off · 5.4 km
- Yejak Bridge (예작교 교량등)Red, 2 s on and 2 s off · 5.4 km
- Yejak Bridge (예작교 교량등)Red, 2 s on and 2 s off · 5.4 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