Tsunoshima Lighthouse
Fl W 5s🇯🇵Honshu-Northwest Coast, JPOperational
Location & Light Range
About Tsunoshima Lighthouse
Constructed of metal, the Tsunoshima Lighthouse stands 99 meters tall, with its light positioned 45 meters above sea level. It was built and first lit in 1876. The tower is visible across a 352 to 232 degree arc. Its light emits a single white flash every 5 seconds, with a geographic range of 18 nautical miles. This structure is located on the island of Tsunoshima, off Japan's Honshu-Northwest Coast.
Why it matters: The lighthouse contains a first-order Fresnel lens, the most powerful type, and is one of only six such lenses in Japan.
Background
Tsunoshima Lighthouse (角島灯台, tsunoshima tōdai) is a lighthouse on the island of Tsunoshima in the city of Shimonoseki, Yamaguchi Prefecture, Japan. It is notable as being one of only six lighthouses in Japan which had a first order Fresnel lens, the most powerful type of Fresnel lens.Light & Optic
Characteristic Signature
Fl W 5s
- Flash Type
- Flashing
- Light Color
- White
- Flash Count
- 1 flash
- Interval
- 5s
- Raw Code
- Fl.W. period 5s
- Focal Height
- 45m
- Light Range
- 18NM (33.3 km)
- Geographic Range
- 18NM
Construction & History
- Year Built
- 1876
References & Identifiers
- Admiralty No.
- M7397
- NGA No.
- 1568
- Wikipedia
- Read on Wikipedia →
- Wikidata
- Q7850237 →
Tower & Structure
- Tower Height
- 99m
- Material
- metal
Structure: Tower; 99. Visible 352°-232°
Location
- City
- Honshu-Northwest Coast
- Country
- 🇯🇵JP
- Latitude
- 34.3525°
- Longitude
- 130.8413°
Nearby Vessels
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