What is Friedrich Georg Wilhelm von Struve?
{{Use dmy dates|date=May 2019}} {{Infobox scientist |name = Friedrich Georg Wilhelm von Struve |image = Struve.jpg |caption = Von Struve |birth_date = {{Birth date|df=yes|1793|4|15}} |birth_place = [[Altona, Hamburg|Altona]] (today part of [[Hamburg]]), [[Duchy of Holstein]] |death_date = {{death date and age|df=yes|1864|11|23|1793|4|15}} |death_place = [[St Petersburg]], [[Russian Empire]] |citizenship = Danish, Russian<ref name='Batten'>{{cite book |title=Resolute and undertaking characters: the lives of Wilhelm and Otto Struve |last= Batten |first=Alan Henry |date=1988 |publisher=Springer |location=Dordrecht, Holland |isbn= 978-90-277-2652-0 |page=9 |url=https://books.google.com/books?id=kXSjxkg0rRgC&pg=PA9 }}</ref> |nationality = [[Baltic provinces|Baltic German]]<ref name=tammiksaar>{{cite web|url=http://www.estinst.ee/publications/estonianculture/I_MMVII/tammiksaar.html|title=Baltic German natural scientists in the science system of the Russian empire|publisher=[[Estonian Institute]]|author=Erki Tammiksaar|url-status=dead|archiveurl=https://web.archive.org/web/20120331052925/http://www.estinst.ee/publications/estonianculture/I_MMVII/tammiksaar.html|archivedate=31 March 2012|df=dmy-all}}</ref> |field = [[astronomy]], [[geodesy]] |alma_mater = [[Imperial University of Dorpat]] |prizes = [[Gold Medal of the Royal Astronomical Society]] (1826)<br>[[Royal Medal]] (1827) }} '''Friedrich Georg Wilhelm von Struve''' (15 April 1793 – 23 November 1864 ([[Julian calendar]]: 11 November)) was a German-born Russian [[astronomer]]. He was born in Altona (now an area of [[Hamburg]]), Germany, but later lived in [[Russia]]. He was an expert on [[double stars]] and one of the first astronomers to measure [[stellar parallax]] (closely related to the work by [[Friedrich Bessel]]). While director of [[Dorpat]] Observatory (1817–[[1839|39]]) he wrote ''Stellarum Duplicum et Multiplicum'' (1837), which proved that double stars are