Sula Lighthouse () is a

coastal lighthouse A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lens (optics), lenses and to serve as a beacon for navigational aid for maritime pilots at sea or on inland waterways. Ligh ...

Frøya Municipality Frøya is the westernmost List of municipalities of Norway, municipality in Trøndelag Counties of Norway, county, Norway. It is part of the Fosen Districts of Norway, region and consists of the Frøya (island), island of Frøya, which lies nor ...

Trøndelag Trøndelag (; or is a county and coextensive with the Trøndelag region (also known as ''Midt-Norge'' or ''Midt-Noreg,'' "Mid-Norway") in the central part of Norway. It was created in 1687, then named Trondhjem County (); in 1804 the county was ...

county,

Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of ...

. The

lighthouse A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lens (optics), lenses and to serve as a beacon for navigational aid for maritime pilots at sea or on inland waterways. Ligh ...

is located on the island of Sula. The lighthouse was originally built here in 1793 and another in 1804. The current tower was built in 1909. It is part of a series of lighthouses along the

Froan Froan (or ''Froøyene'') is a populated archipelago of small, rocky islands in Frøya Municipality in Trøndelag county, Norway. Geography Froan consists of several hundred islands and islets that lie in the sea about west of the Fosen peninsul ...

islands in Frøya including the Finnvær Lighthouse, Vingleia Lighthouse, and Halten Lighthouse. It is lit from July 21 until May 16 each year. It is not lit during the summer due to the

midnight sun Midnight sun, also known as polar day, is a natural phenomenon that occurs in the summer months in places north of the Arctic Circle or south of the Antarctic Circle, when the Sun remains visible at the local midnight. When midnight sun is see ...

of the region.

History

The first light at Sula was built in 1793. The present lighthouse was completed in 1909 and it was automated in 1974. The tall

octagon In geometry, an octagon () is an eight-sided polygon or 8-gon. A '' regular octagon'' has Schläfli symbol and can also be constructed as a quasiregular truncated square, t, which alternates two types of edges. A truncated octagon, t is a ...

concrete Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid over time. It is the second-most-used substance (after water), the most–widely used building material, and the most-manufactur ...

tower is painted white. The light sits at an elevation of above sea level. The white light flashes three times every 30 seconds. The 3,378,000-

candela The candela (symbol: cd) is the unit of luminous intensity in the International System of Units (SI). It measures luminous power per unit solid angle emitted by a light source in a particular direction. Luminous intensity is analogous to radi ...

light can be seen for up to . A 2nd order

Fresnel lens A Fresnel lens ( ; ; or ) is a type of composite compact lens (optics), lens which reduces the amount of material required compared to a conventional lens by dividing the lens into a set of concentric annular sections. The simpler Dioptrics, d ...

is used for the light.

References

External links

Norsk Fyrhistorisk Forening
* {{authority control Lighthouses completed in 1793 Lighthouses completed in 1804 Lighthouses completed in 1904 Froan Lighthouses in Trøndelag 1793 establishments in Norway

History

See also

References

External links