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Ulu Lighthouse

Fl W 3s🇮🇩Sulawesi (Celebes), IDOperational

Location & Light Range

About Ulu Lighthouse

This lighthouse features a round, white and red tower standing 15 meters tall. Its white light flashes once every 3 seconds. The structure's bearing is obscured when less than 261 degrees. The geographic range for this light is 12 nautical miles. It is part of the NGA list with number 25184 and Admiralty number F2120.

Light & Optic

Characteristic Signature
Fl W 3s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
3s
Raw Code
Fl.W. period 3s
Focal Height
15m
Geographic Range
12NM

Location

City
Sulawesi (Celebes)
Country
🇮🇩ID
Latitude
2.7307°
Longitude
125.4093°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Shape
round
Tower Color
white and red

Structure: Obscured bearing less than 261°

References & Identifiers

Admiralty No.
F2120
NGA No.
25184
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Frequently Asked Questions

How do mariners identify Ulu Lighthouse at night?+
Ulu displays the characteristic Fl W 3s — 1 white flash every 3 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.
Is Ulu Lighthouse still active and maintained?+
Yes, Ulu 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.
How can I track vessels near Ulu Lighthouse?+
You can track vessels near Ulu 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.