KOEN
Suomenlinnan kirkko in the middle, with the lights within 20 km, in their listed colours.
Suomenlinnan kirkko — light characteristic, height, range
4 white flashes every 15 seconds
Count 15 seconds.Flash white, 4 times.Begin again.
- Characteristic
- Fl (4) W 15s
- Height
- 54 m
- Nominal range
- 22.5 nmi = 42 km
- Type
- Merimajakka
- Position
- 60.1479°N, 24.9864°E

Lights nearby
- Varvilahti2 very quick yellow flashes every 3 seconds · 545 m
- Lonnan länsipoiju9 very quick white flashes every 10 seconds · 562 m
- Iso Mustasaari ylempiOne long white flash every 6 seconds · 598 m
- Länsi Mustasaari pohjoinen ylempiContinuous quick red flashes · 626 m
- Länsi Mustasaari pohjoinen alempiContinuous quick red flashes · 684 m
- Länsi MustasaariWhite, dark once every 2 seconds (colours listed: white, red, green) · 703 m
- Lonna itäinenContinuous very quick white flashes · 849 m
- Lonna pohjoinenContinuous very quick white flashes · 873 m
Not for navigation. Use the country's official charts and Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: Väylävirasto aids to navigation (Finnish Transport Infrastructure Agency) (opens in a new tab) · Checked