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Gåsfeten Lighthouse

LFl (2) White/Red/Green 15s🇸🇪Ronneby kommun, SEOperational

Location & Light Range

About Gåsfeten Lighthouse

The Gåsfeten lighthouse stands on a small islet southwest of Ronneby Hamn, located in Blekinge County, Sweden. This 10-meter concrete and cast iron tower, first lit in 1904, features a two-stage cylindrical design topped with an octagonal lantern and gallery. Its light exhibits two white, red, or green flashes every 15 seconds, with a focal height of 12 meters providing a geographic range of 11 nautical miles. The lighthouse underwent rebuilding in 1968, preserving its function as an active aid to navigation. The nearest port is Ronneby, 3.4 kilometers away.

Why it matters: Gåsfeten holds historical significance as the world's first lighthouse to utilize acetylene for fuel in 1906, a development that revolutionized maritime safety and led to a Nobel Prize for its innovator. Its directional light aids vessels navigating the waters around the Gåsfeten islet southwest of Ronneby Hamn.

Light & Optic

Characteristic Signature
LFl (2) White/Red/Green 15s
Flash Type
Long Flash
Light Color
White/Red/Green
Flash Count
2 flashes
Interval
15s
Raw Code
LFl(2) WRG 15s
Focal Height
12m
Geographic Range
11NM

Construction & History

Year Built
1904

Significant events: First lighthouse fueled by acetylene (1906), rebuilt (1968)

References & Identifiers

Nearest Port
Ronneby(3.4 km)
Admiralty No.
C7490
NGA No.
7468
ARLHS No.
SWE-146

Tower & Structure

Tower Height
10m
Tower Shape
cylindrical
Tower Color
white and red
Material
concrete, cast iron

Structure: 2-stage tower: a round cylindrical cast iron tower with octagonal lantern and gallery is mounted on a round concrete tower

Location

City
Ronneby kommun
Country
🇸🇪Sweden
Region
Blekinge County
Sea Region
Gåsfeten, an islet about 6 km southwest of the Ronneby Hamn waterfront
Latitude
56.1219°
Longitude
15.2237°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Gåsfeten Lighthouse at night?+
Gåsfeten displays the characteristic LFl (2) White/Red/Green 15s — 2 white/red/green flashes every 15 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 white/red/green color may indicate a specific sector or warning zone.
Which ports and harbors does Gåsfeten Lighthouse guide vessels into?+
Gåsfeten Lighthouse assists vessels approaching 5 nearby ports. The closest is Ronnebyhamn at 4.5 NM to the NE. Other ports served include Ronneby (5.3 NM NNE), Karlskrona (12.3 NM ENE), Karlshamn (12.8 NM WNW), Elleholm (16.1 NM W). Mariners should consult the relevant chart for full approach and pilotage information.
Is Gåsfeten Lighthouse still active and maintained?+
Yes, Gåsfeten 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 Gåsfeten Lighthouse?+
Gåsfeten Lighthouse is located within the Baltic Sea trade route — a vital shipping corridor for trade between Scandinavian, German, Polish, and Baltic state ports. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Gåsfeten Lighthouse?+
You can track vessels near Gåsfeten 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.