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Ajigasawa Kō Lighthouse

Iso R 6s🇯🇵Northern Honshū, JPOperational

Location & Light Range

About Ajigasawa Kō Lighthouse

This red, round concrete tower stands 36 meters tall and emits a red flash every 3 seconds. It is situated in Northern Honshū. The focal height of the light is 13 meters, and it has a geographic range of 7 nautical miles. The lighthouse is operational.

Light & Optic

Characteristic Signature
Iso R 6s
Flash Type
Isophase
Light Color
Red
Flash Count
1 flash
Interval
6s
Raw Code
Fl.R. period 3s
Focal Height
13m
Geographic Range
7NM

Location

City
Northern Honshū
Country
🇯🇵JP
Latitude
40.7854°
Longitude
140.2117°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
36m
Tower Shape
round
Tower Color
red
Material
concrete

Structure: Red round concrete tower; 36

References & Identifiers

Admiralty No.
M7052
NGA No.
3672
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Frequently Asked Questions

How do mariners identify Ajigasawa Kō Lighthouse at night?+
Ajigasawa Kō displays the characteristic Iso R 6s — 1 red flash every 6 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Ajigasawa Kō Lighthouse guide vessels into?+
Ajigasawa Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Ajigasawa at 0.2 NM to the SSW. Other ports served include Fukaura, Aomori (15.6 NM WSW), Kodomari, Aomori (21.5 NM N), Odomari (21.6 NM N), Aomori (24 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ajigasawa Kō Lighthouse still active and maintained?+
Yes, Ajigasawa Kō 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 Ajigasawa Kō Lighthouse?+
Ajigasawa Kō 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 Ajigasawa Kō Lighthouse?+
You can track vessels near Ajigasawa Kō 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.