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Atsumi Lighthouse

Iso R 6s🇯🇵Nagoya (Aichi Prefecture), JPOperational

Location & Light Range

About Atsumi Lighthouse

Atsumi Lighthouse displays a green light with an isophase characteristic, cycling every 6 seconds. The light source is positioned 12 meters above the focal plane. It has a geographic range extending for 4 nautical miles. This light is operational and located in Nagoya within Aichi Prefecture.

Light & Optic

Characteristic Signature
Iso R 6s
Flash Type
Isophase
Light Color
Red
Flash Count
1 flash
Interval
6s
Raw Code
Iso.G. period 6s
Focal Height
12m
Geographic Range
4NM

References & Identifiers

Admiralty No.
M6053.4
NGA No.
5820

Location

City
Nagoya (Aichi Prefecture)
Country
🇯🇵JP
Latitude
34.5874°
Longitude
137.0204°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Atsumi Lighthouse at night?+
Atsumi 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 Atsumi Lighthouse guide vessels into?+
Atsumi Lighthouse assists vessels approaching 5 nearby ports. The closest is Fukue, Aichi at 5.6 NM to the NE. Other ports served include Morozaki (7.2 NM NNW), Suga (8 NM SW), Toyohama, Aichi (8.2 NM NNW), Magusa (10 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Atsumi Lighthouse still active and maintained?+
Yes, Atsumi 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 Atsumi Lighthouse?+
Atsumi 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 Atsumi Lighthouse?+
You can track vessels near Atsumi 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.