Yeşilköy Feneri

Yeşilköy Feneri
Ayostefanos Feneri
LocationYeşilköy
Istanbul
Turkey
Coordinates40°57′30″N 28°50′21″E / 40.95833°N 28.83917°E / 40.95833; 28.83917
Tower
Constructed1856
Constructionstone tower
Height16 m (52 ft)
Shapeoctagonal prism prism tower centered on the keeper's house
Markingswhite tower
Fog signalblast every 30s.
Light
First lit1857
Focal height23 m (75 ft)
Lens500mm catadioptric cylindrical lens
Intensity500 W
Range15 nmi (28 km)
CharacteristicFl W 10s.

Yeşilköy Feneri is a historical lighthouse still in use located on the northern coast of Sea of Marmara at Yeşilyurt neighborhood (once part of Yeşilköy) in Istanbul's Bakırköy district, Turkey.