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Jeongja Lighthouse

Fl (2) R 6s🇰🇷Ulsan, KROperational

Location & Light Range

About Jeongja Lighthouse

The Jeongja Lighthouse emits a red light, characterized by two red flashes repeating every 6 seconds. Standing at a focal height of 16 meters, its light can be seen for a geographic range of 11 nautical miles. This operational aid is situated in Ulsan.

Light & Optic

Characteristic Signature
Fl (2) R 6s
Flash Type
Flashing
Light Color
Red
Flash Count
2 flashes
Interval
6s
Raw Code
Fl.(2)R. period 6s
Focal Height
16m
Geographic Range
11NM

References & Identifiers

Admiralty No.
M4397.4
NGA No.
16673

Location

City
Ulsan
Country
🇰🇷KR
Latitude
35.6163°
Longitude
129.4540°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Jeongja Lighthouse at night?+
Jeongja displays the characteristic Fl (2) R 6s — 2 red flashes 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 Jeongja Lighthouse guide vessels into?+
Jeongja Lighthouse assists vessels approaching 5 nearby ports. The closest is Mipo/Ulsan at 6.1 NM to the S. Other ports served include Ulsan (7.2 NM SSW), Onsan/Ulsan (11.6 NM SSW), Guryongpo (22.5 NM NNE), Pohang (24.1 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Jeongja Lighthouse still active and maintained?+
Yes, Jeongja 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 Jeongja Lighthouse?+
Jeongja 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 Jeongja Lighthouse?+
You can track vessels near Jeongja 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.