Fastnet Lighthouse

Fastnet Lighthouse

The second lighthouse on Fastnet Rock. The lower portion of the first lighthouse is also visible at right.
Location	Fastnet Rock, County Cork, Republic of Ireland
Coordinates	51°23′16″N 9°36′11″W / 51.38778°N 9.60306°W / 51.38778; -9.60306
Tower
Constructed	1897
Designed by	William Douglass
Construction	granite
Automated	1989
Height	54 m (177 ft)
Shape	Tapered cylindrical tower with lantern and double gallery
Markings	white
Operator	Commissioners of Irish Lights
Racon	G
Light
First lit	27 June 1904
Focal height	49 m (161 ft)
Lens	first order Fresnel lens
Intensity	2,500,000 candela
Range	27 nmi (50 km; 31 mi)
Characteristic	Fl W 5s
Ireland no.	CIL-0010
Original lighthouse
Constructed	1854
Designed by	George Halpin
Construction	cast iron, brick
Height	91 ft (28 m)
First lit	1 January 1854
Intensity	38 kilocandela

Fastnet Lighthouse is a 54-metre-tall (177 ft) lighthouse situated on the remote Fastnet Rock in the Atlantic Ocean. It is the most southerly point of Ireland and lies 6.5 kilometres (4.0 mi) southwest of Cape Clear Island and 13 kilometres (8.1 mi) from County Cork on the Irish mainland.^[1] The current lighthouse is the second to be built on the rock and is the tallest in Ireland.