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Atsuta Ko Lighthouse

Fl G 3s🇯🇵Hokkaido-West Coast, JPOperational

Atsuta Ko Lighthouse is a maritime navigation aid located in Hokkaido-West Coast, JP. It is currently operational and active, providing guidance to vessels navigating the surrounding waters. The light sits at a focal height of 13 meters above mean sea level. Under standard atmospheric conditions, the light is visible up to 7 nautical miles (approximately 13.0 km) from the observer.

Light characteristic: The identifying signal of this lighthouse is Fl G 3s. This means the light produces 1 flash every 3 seconds. Mariners use this distinctive pattern to positively identify the light and distinguish it from other aids to navigation in the area. The light color is green, which may indicate a specific sector or warning zone.

Visibility and range: With a focal height of 13 meters and a nominal range of 7 nautical miles, this light serves as a local navigation aid for vessels operating in nearshore waters. While its range is limited, it provides essential guidance for coastal traffic, fishing vessels, and smaller craft in the immediate area.

Position: Atsuta Ko Lighthouse is positioned at 43.3979°N, 141.4273°E, near Hokkaido-West Coast in JP. The blue circle on the map represents the nominal 7-nautical-mile range of the light.

Geographic context: Atsuta Ko Lighthouse is situated on the Sea of Japan. The location falls within the temperate maritime climate zone.

Nearby lighthouses in JP: Other lighthouses in the region include Abashiri East Breakwater, Abashiri Island Breakwater North End, Abashiri North Breakwater, Abashiri South Breakwater East End, Abuka Kō. View all on the Lighthouses Directory.

Characteristic Signature
Fl G 3s
Flash Type
Flashing
Light Color
Green
Flash Count
1 flash
Interval
3s
Focal Height
13m
Light Range
7NM (13.0 km)
Status
ACTIVE
City
Hokkaido-West Coast
Country
🇯🇵JP
Latitude
43.3979°
Longitude
141.4273°
Flag
Type
Name
Dist.
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How far offshore can Atsuta Ko Lighthouse be seen?+
With a focal height of 13 meters and a nominal range of 7 nautical miles (approximately 13.0 km), Atsuta Ko is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. As a shorter-range light, it primarily serves nearshore and coastal traffic.
How do mariners identify Atsuta Ko Lighthouse at night?+
Atsuta Ko displays the characteristic Fl G 3s — 1 green flash every 3 seconds. 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 Atsuta Ko Lighthouse guide vessels into?+
Atsuta Ko Lighthouse assists vessels approaching 5 nearby ports. The closest is Ishikariwan Shinko at 4.3 NM to the SE. Other ports served include Wan (10.2 NM SSW), Wakkanai (11.2 NM E), Ishikariwan Shinko (12.2 NM SSW), Ishikari (12.9 NM SSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Atsuta Ko Lighthouse still active and maintained?+
Yes, Atsuta Ko 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.
How can I track vessels near Atsuta Ko Lighthouse?+
You can track vessels near Atsuta Ko 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.