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Tartu Observatory

The Tartu Observatory (Estonian: Tartu Observatoorium) is the largest astronomical observatory in Estonia. On 1 January 2018, Tartu Observatory was joined again to the University of Tartu, and the observatory is now an institute of the university. It is located on the Tõravere hill, about 20 km south-west of Tartu in Nõo Parish, Tartu County. The old Tartu Observatory, located in Tartu city centre, is known internationally for its connection to Friedrich Georg Wilhelm von Struve and the Struve Geodetic Arc, of which it is the first reference point.[1][2][3]

Tartu Observatory

Main Building of the Tartu Observatory.
Alternative namesTartu Observatory of Tartu University
OrganizationTartu Observatory
Observatory code L75 
LocationTõravere, Estonia
Coordinates58°15′57″N 26°27′58″E / 58.26583°N 26.46611°E / 58.26583; 26.46611
Observing time100 nights per year 
Established1810, 1964 (relocation)
Websitekosmos.ut.ee
Telescopes
Location of Tartu Observatory
  Related media on Commons
The old observatory building in Tartu. 58°22′43.64″N 26°43′12.61″E / 58.3787889°N 26.7201694°E / 58.3787889; 26.7201694 (Tartu Old Observatory)

History edit

The Tartu Observatory was founded at the Imperial University of Dorpat as it was reopened in 1802. The observatory building was completed in 1810 on the Toome hill in Dorpat. The instruments were installed in 1814 by von Struve who subsequently started observations. In 1824, a 9" Fraunhofer refractor arrived, the largest achromatic telescope in the world at the time. When von Struve began assembling his Geodetic Arc in 1816, the doorstep of the observatory became its first point.

In 1946 the renamed Tartu Observatory was separated from the university and subjected to the Estonian Academy of Sciences. The authorities started to look for the new observational base in 1950. A patch of land on the Tõravere hill was assigned for the purpose and in 1958 construction began. By 1963, the new observatory building was completed, part of the astronomers from the old observatory moved in, and the 50 cm reflector telescope had first light. In 1964, an international conference was held and the Tartu Observatory was renamed von Struve Observatory. In 1974 the 1.5 metre telescope become operational. The name of the observatory was reverted to Tartu Observatory in 1995. In 1998, a 0.6 metre reflector and in 2013, a 0.3 metre modern robotic telescope were installed.

The old observatory building now mainly serves as a museum and is a part of a public science education centre.

Several notable scientists have been associated with the Tartu Observatory: Friedrich Georg Wilhelm von Struve, Johann Heinrich von Mädler, Thomas Clausen, Ernst Julius Öpik, Grigori Kuzmin, Jaan Einasto.

Equipment edit

The observatory has three main telescopes. The 1.5 metre Cassegrain reflector, which is the largest optical telescope in Northern Europe, is used for spectroscopic observations. The second and third telescope are a 0.6 metre and 0.31 metre reflectors for photometric observations. There is also a pitch for a collection of meteorological instruments on the observatory grounds.

Tartu Observatory has also laboratories for accurate radiometric calibration for near-UV to shortwave infrared radiation; vacuum-, vibration-, temperature, and electromagnetic compatibility testing.

See also edit

References edit

  1. ^ "Struve Geodetic Arc". UNESCO World Heritage List. 2005. Retrieved 10 July 2019.
  2. ^ . Archived from the original on 2008-12-02. Retrieved 2008-05-18.
  3. ^ Viik, Tõnu (27–29 September 2004). "How F.G.W. Struve started his ambitious project?" (PDF). Retrieved 10 July 2019.

External links edit

  • Official website  
  • Tartu Observatoorium 1805-1948, Georgi Želnin, 2004
  • Timeline of Tartu Observatory
  • Fraunhofer refractor
  • About the search for dark matter in the Tartu observatory
  • Tartu Old Observatory

tartu, observatory, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, decembe. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Tartu Observatory news newspapers books scholar JSTOR December 2017 Learn how and when to remove this template message The Tartu Observatory Estonian Tartu Observatoorium is the largest astronomical observatory in Estonia On 1 January 2018 Tartu Observatory was joined again to the University of Tartu and the observatory is now an institute of the university It is located on the Toravere hill about 20 km south west of Tartu in Noo Parish Tartu County The old Tartu Observatory located in Tartu city centre is known internationally for its connection to Friedrich Georg Wilhelm von Struve and the Struve Geodetic Arc of which it is the first reference point 1 2 3 Tartu ObservatoryMain Building of the Tartu Observatory Alternative namesTartu Observatory of Tartu UniversityOrganizationTartu ObservatoryObservatory codeL75 LocationToravere EstoniaCoordinates58 15 57 N 26 27 58 E 58 26583 N 26 46611 E 58 26583 26 46611Observing time100 nights per year Established1810 1964 relocation Websitekosmos wbr ut wbr eeTelescopesAZT 121 5 m Cassegrain telescopeZeiss 6000 6 m reflecting telescopeRAITS0 31 m reflecting telescopeLocation of Tartu Observatory Related media on Commons edit on Wikidata The old observatory building in Tartu 58 22 43 64 N 26 43 12 61 E 58 3787889 N 26 7201694 E 58 3787889 26 7201694 Tartu Old Observatory Wikimedia Commons has media related to Tartu Observatory Contents 1 History 2 Equipment 3 See also 4 References 5 External linksHistory editThe Tartu Observatory was founded at the Imperial University of Dorpat as it was reopened in 1802 The observatory building was completed in 1810 on the Toome hill in Dorpat The instruments were installed in 1814 by von Struve who subsequently started observations In 1824 a 9 Fraunhofer refractor arrived the largest achromatic telescope in the world at the time When von Struve began assembling his Geodetic Arc in 1816 the doorstep of the observatory became its first point In 1946 the renamed Tartu Observatory was separated from the university and subjected to the Estonian Academy of Sciences The authorities started to look for the new observational base in 1950 A patch of land on the Toravere hill was assigned for the purpose and in 1958 construction began By 1963 the new observatory building was completed part of the astronomers from the old observatory moved in and the 50 cm reflector telescope had first light In 1964 an international conference was held and the Tartu Observatory was renamed von Struve Observatory In 1974 the 1 5 metre telescope become operational The name of the observatory was reverted to Tartu Observatory in 1995 In 1998 a 0 6 metre reflector and in 2013 a 0 3 metre modern robotic telescope were installed The old observatory building now mainly serves as a museum and is a part of a public science education centre Several notable scientists have been associated with the Tartu Observatory Friedrich Georg Wilhelm von Struve Johann Heinrich von Madler Thomas Clausen Ernst Julius Opik Grigori Kuzmin Jaan Einasto Equipment editThe observatory has three main telescopes The 1 5 metre Cassegrain reflector which is the largest optical telescope in Northern Europe is used for spectroscopic observations The second and third telescope are a 0 6 metre and 0 31 metre reflectors for photometric observations There is also a pitch for a collection of meteorological instruments on the observatory grounds Tartu Observatory has also laboratories for accurate radiometric calibration for near UV to shortwave infrared radiation vacuum vibration temperature and electromagnetic compatibility testing See also editList of astronomical observatories University of Tartu Old ObservatoryReferences edit Struve Geodetic Arc UNESCO World Heritage List 2005 Retrieved 10 July 2019 Struve Geodetic Arc Introduction Archived from the original on 2008 12 02 Retrieved 2008 05 18 Viik Tonu 27 29 September 2004 How F G W Struve started his ambitious project PDF Retrieved 10 July 2019 External links editOfficial website nbsp Tartu Observatoorium 1805 1948 Georgi Zelnin 2004 Timeline of Tartu Observatory Fraunhofer refractor About the search for dark matter in the Tartu observatory Tartu Old Observatory Retrieved from https en wikipedia org w index php title Tartu Observatory amp oldid 1172554962, wikipedia, wiki, book, books, library,

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