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Ryssökobb Lighthouse

Q White 15s🇫🇮Hanko, FIOperational

Location & Light Range

About Ryssökobb Lighthouse

Also known as: Ryssökobb (Range Front)

Located on an islet 800 meters south of the Gustavsvärn lighthouse, the Ryssökobb lighthouse is a red, cylindrical steel tower standing 17 meters tall. Its focal height reaches 21 meters, from which it emits a quick-flashing white light. The structure features a square, skeletal tower carrying a large rectangular daymark, distinguished by its red color and a yellow vertical stripe. The lighthouse provides a geographic range of 13.4 nautical miles. While the islet is open to visitors, the tower itself remains closed.

Why it matters: The Ryssökobb lighthouse is essential for guiding vessels around the islet off Ryssö's eastern side, preventing groundings in the Finnish archipelago. Its unique visual identifier and light ensure safe passage for smaller craft and fishing boats navigating these waters.

Light & Optic

Characteristic Signature
Q White 15s
Flash Type
Quick
Light Color
White
Interval
15s
Raw Code
Q W
Focal Height
21m
Geographic Range
13.4NM

Location

City
Hanko
Country
🇫🇮Finland
Region
Uusimaa
Sea Region
an islet off the east side of Ryssö, Finland, about 800 m south of the Gustavsvärn lighthouse.
Latitude
59.7936°
Longitude
22.9403°

References & Identifiers

Nearest Port
Hanko (Hango)(1.5 km)
Admiralty No.
C4919
NGA No.
15164

Tower & Structure

Tower Height
17m
Tower Shape
cylindrical
Tower Color
red with a yellow vertical stripe
Material
steel

Structure: square cylindrical skeletal tower carrying a large rectangular daymark colored red with a yellow vertical stripe

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 Ryssökobb Lighthouse at night?+
Ryssökobb displays the characteristic Q White 15s. 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 Ryssökobb Lighthouse guide vessels into?+
Ryssökobb Lighthouse assists vessels approaching 5 nearby ports. The closest is Hanko (Hangö) at 1.3 NM to the N. Other ports served include HANGONKYLA (2.9 NM N), Tvärminne (7.7 NM ENE), Koverhar (Koverhaara) (10 NM ENE), Lappvik (Lappohja) (11.3 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ryssökobb Lighthouse still active and maintained?+
Yes, Ryssökobb 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 Ryssökobb Lighthouse?+
Ryssökobb 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 Ryssökobb Lighthouse?+
You can track vessels near Ryssökobb 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.