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Nasa Lighthouse

Fl White 6s🇰🇷Ulsan, KROperational

Location & Light Range

About Nasa Lighthouse

This cylindrical concrete tower stands 12 meters tall on the south side of the Ganjeolot peninsula, marking a sharp promontory east of the Nasa harbor. It features upper and lower galleries and emits a white light with a single flash every six seconds. The lighthouse's focal plane is 19 meters above sea level, providing a geographic range of 12.9 nautical miles. While the lighthouse site is open to visitors, the tower itself remains closed. The nearest major port is Ulsan, approximately 9.1 kilometers away.

Why it matters: This light warns mariners of a sharp promontory, ensuring safe passage for vessels entering and departing the small port of Nasa on the Ganjeolot peninsula.

Light & Optic

Characteristic Signature
Fl White 6s
Flash Type
Flashing
Light Color
White
Interval
6s
Raw Code
Fl W 6s
Focal Height
19m
Geographic Range
12.9NM

Location

City
Ulsan
Country
🇰🇷South Korea
Region
Ulju-gun
Sea Region
south side of the Ganjeolot peninsula, marking a sharp promontory on the east side of the harbor of Nasa
Latitude
35.3524°
Longitude
129.3452°

References & Identifiers

Nearest Port
Ulsan(9.1 km)
Admiralty No.
M4377.9
NGA No.
16713

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round white concrete tower with upper and lower galleries

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Nasa Lighthouse at night?+
Nasa displays the characteristic Fl White 6s. 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Nasa Lighthouse guide vessels into?+
Nasa Lighthouse assists vessels approaching 5 nearby ports. The closest is Onsan/Ulsan at 5.2 NM to the N. Other ports served include Ulsan (9.7 NM N), Mipo/Ulsan (10.8 NM NNE), South Busan (18.8 NM SSW), Busanjin-Gu (18.9 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Nasa Lighthouse still active and maintained?+
Yes, Nasa 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 Nasa Lighthouse?+
Nasa 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 Nasa Lighthouse?+
You can track vessels near Nasa 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.