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Saganoseki Gyoko Lighthouse

Iso R 4s🇯🇵Eastern Kyūshū, JPOperational

Location & Light Range

About Saganoseki Gyoko Lighthouse

Saganoseki Gyoko operates as a navigational aid in Eastern Kyūshū. Its focal plane sits 13 meters above the water. The light emits a single red flash every 6 seconds. This consistent signal helps guide vessels through the area.

Light & Optic

Characteristic Signature
Iso R 4s
Flash Type
Isophase
Light Color
Red
Flash Count
1 flash
Interval
4s
Raw Code
Fl.R. period 6s
Focal Height
13m

References & Identifiers

Admiralty No.
M4944
NGA No.
9316

Location

City
Eastern Kyūshū
Country
🇯🇵JP
Latitude
33.2403°
Longitude
131.8767°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Saganoseki Gyoko Lighthouse at night?+
Saganoseki Gyoko displays the characteristic Iso R 4s — 1 red flash every 4 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 Saganoseki Gyoko Lighthouse guide vessels into?+
Saganoseki Gyoko Lighthouse assists vessels approaching 5 nearby ports. The closest is Saganoseki at 0.4 NM to the NW. Other ports served include Usuki (7.6 NM SSW), Tsukumi (9.5 NM S), Oita (10.6 NM W), Misaki, Ehime (14.7 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Saganoseki Gyoko Lighthouse still active and maintained?+
Yes, Saganoseki Gyoko 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 Saganoseki Gyoko Lighthouse?+
Saganoseki Gyoko 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 Saganoseki Gyoko Lighthouse?+
You can track vessels near Saganoseki Gyoko 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.