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Hirakubosaki Lighthouse

Iso W 6s🇯🇵Nansei Shoto, JPInactive

Location & Light Range

About Hirakubosaki Lighthouse

Constructed of masonry, this white cylindrical tower stands 74 meters high. It is situated in the Nansei Shoto region. The lighthouse emits an isophase white light that completes a cycle every 6 seconds. A radar reflector is also part of the structure. Its geographic range is 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
74m
Light Range
12NM (22.2 km)
Geographic Range
12NM

Location

City
Nansei Shoto
Country
🇯🇵JP
Latitude
24.6103°
Longitude
124.3160°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Shape
cylindrical
Tower Color
white
Material
masonry

Structure: White cylindrical tower. Radar reflector

References & Identifiers

Admiralty No.
M4734
NGA No.
13528
Wikidata
Q60990228 →
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Frequently Asked Questions

How far offshore can Hirakubosaki Lighthouse be seen?+
With a focal height of 74 meters and a nominal range of 12 nautical miles (approximately 22.2 km), Hirakubosaki 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 Hirakubosaki Lighthouse at night?+
Hirakubosaki 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 Hirakubosaki Lighthouse guide vessels into?+
Hirakubosaki Lighthouse assists vessels approaching 4 nearby ports. The closest is Ishigaki at 18.5 NM to the SSW. Other ports served include Kohama (24.6 NM SW), Funaura (30.1 NM WSW), Hatoma (31.2 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Hirakubosaki Lighthouse still active and maintained?+
Hirakubosaki Lighthouse is currently listed as inactive. It may have been decommissioned, replaced by a different navigation aid, or temporarily taken out of service. Mariners should check the latest Notices to Mariners for current status.
How can I track vessels near Hirakubosaki Lighthouse?+
You can track vessels near Hirakubosaki 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.