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News from the SGA states
in 2018 PDF Печать

Experts of the "Credo-Dialogue" company and "Belgeodesy" state enterprise completed joint search works aiming to recover all surviving elements of the former infrastructure of the principal SGA point "Belin".

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in 2015 PDF Печать


Silver collector coin has been issued by the National Bank. It is dedicated to the World Heritage site "Struve Geodetic Arc". The coin has a good design, aptly submitted basic geodetic information and a small drawing explaining what is astronomical latitude. On the edge modern names, latitude and longitude values of the three Lithuanian SGA stations are engraved.


Minsk,  Belarus.

Nicholas Yalokin - biker from Belarus - made a solitary trip, visiting all the stations of the Russo-Scandinavian degree measurements (The Struve arc), which belong to the national territory.



Village Belin. The Struve Arc field observatory "Belin" looked like this:

School teacher from the Belarus village Belin Vyacheslav Mazur with his own hands recreated the appearance of the Tenner-Chodzko astronomical observatory where observations had been made to measure the Struve Arc. Small wooden house with two astronomical instruments in it was used to determine latitude and azimuth in Belin - southern end point of the "Lithuanian" Struve Arc segment.
It was built in 1827 on the spot where now there is Mazur's private house and small yard around (see http://geotop.ru/publication/publ.phtml?event=3&id=561 and the News of 2014 from Belarus a bit lower on this page. The Mazur's model of the Observatory was pieced together with love, following instructions of a professional astronomer, and now perfectly matches the previously made ingenious designation of the observatory place. For the first time since the Struve Geodetic Arc acquired the status of the trans-European World Heritage Site, there has been recreated on it the appearance and indicated with natural flowers the exact location of one of the 13 Struve Arc field observatories.

in 2014 PDF Печать

Russia - Finland. The Ninth segment

In the spring of this year, members of the Society's Board visited the geodetic stations Kilpimeki in central Finland and Mekipelyus on the island of Gogland in the Gulf of Finland. The stations are the ends of the IXth (south-Finnish) segment of the "Struve Arc". Either site was carefully inspected, and photofixation made of the locations of the observing instruments once having been used there.

Curious similarities have been discovered, not only of topographical features on those sites, but, surprisingly - of their particular histories. After high-precision determination of their geographical positions on the meridian triangulation of the "Struve Arc", both stations had some time the dominant influence on the determination of the coordinates of other points in their space areas/ Then went a gradual decline in their geodetic role, resulted in low and then zero demand. Offensive nature as well as own interests of various administrative and technical bodies in either country (because the stations occupy tops of dominating hills), accompanied regress in public awareness and access.

Unlike its Finnish counterpart, Russian Mekipelyus became member of the World Heritage property "Struve Geodetic Arc" (because Russia has no other stations of the "Struve Arc" except on Gogland); this turning point gained some fame, very few - access and nothing at all - as to due arrangements. Surveyors, Russian as well as Finnish, do not actually need the stations ("they are not ordered"). Mekipelyus and Kilpimeki are being overgrown - because nature is living its own laws; and surveyors, as well as the above-mentioned "decision-making" bodies, of course, their own, far from saving the historical and cultural properties.

Are there surveyors today who may have interest about a surprising geodetic quality of the 9th segment of the "Struve Arc" (unlike any of "Arc"'s other segments)? It shows a strange coincidence of its geometric parameters determined yet in the first half of the 19th century, and those determined today (talking about the length and azimuth of the connecting geodesic). Those who are interested, who wants to visit "places of Labour Glory" of surveyors, to relax on the "tops" (in both senses of the word), may write down the coordinates (WGS-84):

Mekipelyus 60 04 26.8 N, 26 58 11.2 E; Kilpimeki 62 38 02.5 N, 26 46 04.2 E.


Belin, Belarus

The owner of the parcel of land on which astronomical observations were carried out in 1826 to measure the future "Struve Arc" - Vyacheslav Mazur - has created an unusual and beautiful monument to this historical event. The original brick foundations for astronomical instruments and the pillar pendulum clock discovered on his courtyard he marked with outline flower beds. In the geometric centre of the observatory "Belin" which had been determined with exact measurement, now stands a large granite stone. A World Cultural Heritage "Struve Geodetic Arc" is now enriched with incomparable amateur monument to the work of outstanding surveyors Karl Tenner and Józef Hodzko who established the observatory and conducted observations in Belin.

in 2013 PDF Печать

From December 7, 2012 in the Belin village secondary school (in Drogichin district, Brest region) a permanent exhibit dedicated to "the Struve Geodetic Arc" has been opened. Placed here are exhibits of cognitive nature (information board) which were prepared by the company "Credo-Dialogue" (Minsk), who also performed a preliminary repair works in the room provided by the school.

The Belin village presents an important point of the Struve arc: here one of the 13 major (astronomical and geodetic) stations of the entire Arc was situated. In 2010-2011 key findings have been made here, due to efforts of enthusiasts from the company "Credo-Dialogue", state enterprise "Belaerokosmogeodeziya" (Minsk), in collaboration with the St. Petersburg Society of Surveying & Mapping and local resident V.F.Mazur. Among those are the centres of a field astronomical observatory and trigonometrical station, as well as complete observatory "infrastructure": the foundations of the two astronomic instruments, that of a pillar for the clocks and rests of azimuth control signs. All of these objects are of great scientific and mere educational interest; Belin schoolchildren were directly involved in the search for traces of "the Struve arc" measurements in the village of Belin.

On September 6, 2013 representatives of "Credo-Dialogue" and "Belaerokosmogeodeziya" made a supplement to the school exhibit: they gave her a 3D topographical model of the territory on which the arc principal station "Belin" had been situated. The model is 1.7 x 1.2 meters in size, it was made by military topographers of the 31st Navigation and Topographical Centre of the Ministry of Defence, basing on a surviving scaled plan of the station visual survey, which is signed by K.Tenner. The model reproduces historical location of the Belin objects of 1826-1827, among those are the astronomical observatory and trigonometric station.

in 2011 PDF Печать

Ukraine. A well-illustrated account (11 parts) reviewing the world's first off-road car expedition “Struve Mission” along the 3000-km route of the WH “Struve Geodetic Arc” in July-August this year is placed on the following three pages of the Forum of the Ukrainian automobile club “Lviv 4x4”:




Latvia. Surveyors of the governmental Geospatial Information Agency and Riga Technical University have computed precise location of SGA astronomical-geodetic station “Bristen” (lat. 56.34.53, long. 25.21.34) and conducted first excavations at the place in August 17-19. Parts of underground foundation of the astronomical observatory and centre of the station have been found. On August 31 the investigations went on: after removing a safeguarding cover of bricks the precise physical carrier of the “Bristen” station centre has been found.

The carrier of metal has a precise physical point formed by intersection of two straight lines, as well as an inscription: “1828”. The findings of Latvian and Belarus (see the next info) surveyors have made a valuable contribution both to culture and the history of geodesy, i.e. recover of  authentic “Lithuanian arc of meridian” of Karl Tenner - outstanding surveyor of the first half of the 19 C.

Belarus. On July 20 specialists of the private “Credo-Dialog” company and state-owned enterprise Belaerokosmogeodeziya (Minsk) have conducted successful excavations at the place where the principal station of the Belarusian segment of the “Struve Geodetic Arc” was situated - in the village of Belin in the south of the Republic. A well-preserved centre point of 1827 was discovered, it was found under a floor of concrete inside a brickwall building of a farm (calf shed).

The exact field position of the centre was found in summer of 2010 by the company “Credo-Dialog” and the St. Petersburg Society of Surveying & Mapping together .

Estonia. In the city of Tartu on April 27 celebrations were held devoted to the 200th anniversary of the old astronomical observatory of Tartu University. The celebration was attended by a visiting representative of the St. Petersburg SS&M. In the observatory of the former “Dorpat University” a graduate and then an outstanding professor and academician Wilhelm (Vasily Yakovlevich) Struve led his astronomical and geodetic work for 28 years. One of the exhibits of the restored observatory museum is a commemorative point defined by Struve himself which fixes the line of the famous Russian-Scandinavian meridian arc.

As a gift from the St. Petersburg SS&M a copy of a rare Struve's manuscript of 1819 has been delivered to the museum.

Estonia, Latvia, Finland, Sweden. Postal administrations of these countries have released souvenir postage stamps dedicated to the World Heritage "Struve Geodetic Arc". Swedish stamps have an ingenious triangular shape.

United Nations Organization. United Nations Postal Administration is near to release a series of six stamps dedicated to the World Heritage in Nordic countries, one of those is called “Struve Bogen” (Struve arc).

in 2010 PDF Печать

Ukraine. Specialists of the Research Institute of Geodesy and Cartography have completed two years of exploratory work in former Provinces Volhynia and Podolia where segments of the WH "Struve Geodetic Arc" had been established in the XIX C. As a result of the calculations and excavations, funded by the state, they have found 10 original geodetic markers. This greatly contributes to the real infrastructure of the Ukrainian segment of the "Struve Geodetic Arc" which still consists of only 4 points, one of those being a well-known southern terminal "Staro-Nekrasovka" at the southern end of the famous measurement.

Belarus. Crucial technical and organizational steps are made to fully restore the Belarus' principal Struve arc station "Belin" situated in the south of the country (see the "International Cooperation" page at 2010). In a recent issue of the nation-wide magazine "Zemlya Belarusy” (Land of Belarus) No. 4 / 2010 an article is published about the history of the station and the results of exploratory work carried out on two points of the station in the summer of 2010. The paper reproduces the main content of the internet publication on the media project GeoTop website (http://geotop.ru/publication/publ.phtml?event=3&id=561).

in 2009 PDF Печать

Moldova. Coin of silver dedicated to the Struve Geodetic Arc is issued by the state National Bank. The coined image shows a map of the republic crossed by the Struve arc triangular chain with the only Struve arc point (“Rudy”) highlighted.

Russia. In May the St. Petersburg SS&M has published a commemorative issue of Society's magazine ("Vestnik Sankt-Peterburgskogo obshchestva geodezii i kartografii", 6/2007) dedicated to the 150th anniversary of publication of the outstanding work by F.G.W.Struve on the measurement of a 25-degree arc of the meridian ("Arc du meridien ...entre le Danube et la Mer Glaciale", 1856-1857, St. Petersburg).

in 2008 PDF Печать

Latvia. In the eve of the meeting of the international Committee on the "Struve Arc" in the town of Jekabpils a new memorial design had been accomplished at Latvia's principal station "Jakobstadt" in the town public Struve park. Near to the historical stone a commemorative tower was set as a piece of art fitted with a backlight.

in 2007 PDF Печать


in 2006 PDF Печать

Belarus. In December the National Bank issued commemorative copper-nickel and silver coins of unusual rectangular shape, dedicated to the "Struve Geodetic arc”. The presence of an error in the figure on the coin field (the length of the meridian arc shows the "2880 km" instead of the correct value of 2822 km) does not detract from the great interest to collectors of beautiful souvenirs ...

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