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Heda Lighthouse

Iso W 6s🇯🇵Honshu-South Coast, JPOperational

Location & Light Range

About Heda Lighthouse

Also known as: Heda Lighthouse

A white, round concrete tower, 36 meters in height, marks this location. Its focal plane is situated 17 meters above sea level. The lighthouse displays an isophase white light, which completes its cycle every 6 seconds. This light has a geographic range of 12 nautical miles.

Light & Optic

Characteristic Signature
Iso W 6s
Flash Type
Isophase
Light Color
White
Flash Count
1 flash
Interval
6s
Raw Code
Iso.W. period 6s
Focal Height
17m
Light Range
12NM (22.2 km)
Geographic Range
12NM

Location

City
Honshu-South Coast
Country
🇯🇵JP
Latitude
34.9765°
Longitude
138.7639°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

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

Structure: White round concrete tower; 36

References & Identifiers

Admiralty No.
M6268.2
NGA No.
5616
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Frequently Asked Questions

How far offshore can Heda Lighthouse be seen?+
With a focal height of 17 meters and a nominal range of 12 nautical miles (approximately 22.2 km), Heda is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. This range makes it a significant coastal navigation aid for vessels transiting the area.
How do mariners identify Heda Lighthouse at night?+
Heda displays the characteristic Iso W 6s — 1 white 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.
Which ports and harbors does Heda Lighthouse guide vessels into?+
Heda Lighthouse assists vessels approaching 5 nearby ports. The closest is Heda at 0.3 NM to the ESE. Other ports served include Toi (3.9 NM SSE), Omosu (6.5 NM ENE), Ugusu (7.6 NM S), Numazu (7.7 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Heda Lighthouse still active and maintained?+
Yes, Heda 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 Heda Lighthouse?+
Heda 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 Heda Lighthouse?+
You can track vessels near Heda 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.