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Nō Se Lighthouse

Fl Green 8s🇯🇵Nagasaki, JPOperational

Location & Light Range

About Nō Se Lighthouse

The Nō Se lighthouse, built in 1960, is a 15-meter cylindrical tower painted green. It stands on the southwesternmost islet of a rocky reef extending southwestward, located just west of the Mie harbor entrance. The focal height of the light is 19 meters. This lighthouse emits a single green flash every 8 seconds, with a geographic range of 12.9 nautical miles. Reaching the islet requires a boat journey across coastal waters, and while the area around the tower is accessible, the structure itself is closed to the public.

Why it matters: This lighthouse is important for maritime safety as it marks a dangerous rocky reef southwest of the Mie harbor entrance. Its green light provides a visual cue for vessels navigating the approaches to Mie.

Light & Optic

Characteristic Signature
Fl Green 8s
Flash Type
Flashing
Light Color
Green
Interval
8s
Raw Code
Fl G 8s
Focal Height
19m
Geographic Range
12.9NM

Construction & History

Year Built
1960

References & Identifiers

Nearest Port
Nagasaki(7.1 km)
Admiralty No.
M5201
NGA No.
11836
USCG No.
JCG-6326

Tower & Structure

Tower Height
15m
Tower Shape
cylindrical
Tower Color
green

Structure: tapered round tower, painted green

Location

City
Nagasaki
Country
🇯🇵Japan
Region
Nagasaki Prefecture
Sea Region
Located on the southwesternmost islet of a rocky reef extending southwestward just west of the Mie harbor entrance.
Latitude
32.8035°
Longitude
129.7305°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Nō Se Lighthouse at night?+
Nō Se displays the characteristic Fl Green 8s. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The green color may indicate a specific sector or warning zone.
Which ports and harbors does Nō Se Lighthouse guide vessels into?+
Nō Se Lighthouse assists vessels approaching 5 nearby ports. The closest is Nagasaki at 7.3 NM to the SE. Other ports served include Nagayo (7.3 NM ENE), Koguchi (7.8 NM NNE), Aikawa, Nagasaki (8 NM SE), Furue, Nagasaki (8 NM SE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Nō Se Lighthouse still active and maintained?+
Yes, Nō Se Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
What shipping routes pass near Nō Se Lighthouse?+
Nō Se Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Nō Se Lighthouse?+
You can track vessels near Nō Se Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.