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Oseto No. 3 Range Rear Lighthouse

F Yellow 16s🇯🇵Kitakyushu, JPOperational

Location & Light Range

About Oseto No. 3 Range Rear Lighthouse

This 13-meter tall concrete tower, built in 1966, serves as the rear light for the Oseto No. 3 range. It is situated 340 meters northeast of its corresponding front light. The cylindrical structure features a double gallery and is painted white. Within a triangular daymark, the light is displayed as a panel of horizontal neon tubes, emitting a yellow flash. The structure stands 42 meters above sea level, providing a geographic range of 17.4 nautical miles. The nearest port is Hikoshima, located 2.7 kilometers away.

Why it matters: As part of a range lighting system, this lighthouse provides critical alignment for vessels navigating the Oseto area, ensuring safe passage. Its unique illumination system, utilizing horizontal neon tubes, distinguishes it technologically.

Light & Optic

Characteristic Signature
F Yellow 16s
Flash Type
Fixed
Light Color
Yellow
Interval
16s
Raw Code
F Y
Focal Height
42m
Geographic Range
17.4NM

Construction & History

Year Built
1966

References & Identifiers

Nearest Port
Hikoshima(2.7 km)
Admiralty No.
M5340.61
NGA No.
9808

Tower & Structure

Tower Height
13m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round concrete tower with double gallery; the light is shown as a panel of horizontal neon tubes within a triangular daymark

Location

City
Kitakyushu
Country
🇯🇵Japan
Region
Fukuoka Prefecture
Sea Region
A range rear light in Japan, located 340m northeast of its front light, guiding vessels through the Oseto area.
Latitude
33.9173°
Longitude
130.9422°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Oseto No. 3 Range Rear Lighthouse at night?+
Oseto No. 3 Range Rear displays the characteristic F Yellow 16s. 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 yellow color may indicate a specific sector or warning zone.
Which ports and harbors does Oseto No. 3 Range Rear Lighthouse guide vessels into?+
Oseto No. 3 Range Rear Lighthouse assists vessels approaching 5 nearby ports. The closest is Shimonoseki at 1.1 NM to the NNW. Other ports served include Kanmon (1.6 NM SW), Tanoura/Kitakyushu (2.3 NM NNE), Oku (3.6 NM SW), Shinmoji (3.6 NM SE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Oseto No. 3 Range Rear Lighthouse still active and maintained?+
Yes, Oseto No. 3 Range Rear 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 Oseto No. 3 Range Rear Lighthouse?+
Oseto No. 3 Range Rear 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 Oseto No. 3 Range Rear Lighthouse?+
You can track vessels near Oseto No. 3 Range Rear 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.