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Coordinates: 41°41′36″N 24°44′20″E / 41.6932°N 24.7389°E / 41.6932; 24.7389
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{{Use dmy dates|date=April 2020}}
{{Infobox Observatory
{{Infobox Observatory
|name = Rozhen Observatory
|name = Rozhen Observatory
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|organization = [[Bulgarian Academy of Sciences]]
|organization = [[Bulgarian Academy of Sciences]]
|location = Near [[Chepelare]], [[Bulgaria]]
|location = Near [[Chepelare]], [[Bulgaria]]
|coords = {{coord|41|41|33|N|24|44|17|E|type:landmark_region:BG}}
|coords = {{coord|41.6932|24.7389|format=dms|type:landmark_region:BG|display=inline,title}}
|altitude = 1759 m
|altitude = 1759 m
|weather =
|weather =
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|website = [http://www.nao-rozhen.org/ NAO-Rozhen]
|website = [http://www.nao-rozhen.org/ NAO-Rozhen]
|telescope1_name = Ritchey-Chretien-Coude telescope
|telescope1_name = Ritchey-Chretien-Coude telescope
|telescope1_type = 200 cm
|telescope1_type = 200 cm
|telescope2_name = Cassegrain telescope
|telescope2_name = Cassegrain telescope
|telescope2_type = 60 cm [[Cassegrain reflector]]
|telescope2_type = 60 cm [[Cassegrain reflector]]
|telescope3_name = Schmidt telescope
|telescope3_name = Schmidt telescope
|telescope3_type = 50/70 cm
|telescope3_type = 50/70 cm
|telescope4_name = Solar [[Coronagraph]] telescope
|telescope4_name = Solar [[Coronagraph]] telescope
|telescope4_type = 15 cm
|telescope4_type = 15 cm
}}
}}


'''Rozhen Observatory''' ({{lang-bg|Национална астрономическа обсерватория "Рожен"}}, ''НАО-Рожен'' - NAO-Rozhen) is a Bulgarian [[astronomical observatory]], located 90 km south of the city of [[Plovdiv]], [[Bulgaria]]. The nearest town, [[Chepelare]], is 15 km away. It is owned and operated by the [[Institute of Astronomy of the Bulgarian Academy of Sciences|Institute of Astronomy]] of the [[Bulgarian Academy of Sciences]]. The Observatory is the largest in Eastern Europe and has an active team of about 50 astronomers. It is the principal center for astronomical research in Bulgaria.{{Citation needed|date=April 2011}}
'''Rozhen Observatory''' ({{langx|bg|Национална астрономическа обсерватория - Рожен}}, ''НАО-Рожен''; {{langx|en|National Astronomical Observatory - Rozhen}}, ''NAO-Rozhen''), also known as the '''Bulgarian National Astronomical Observatory''', is an [[astronomical observatory]], located in the Smolyan Province, 90 kilometers south of the city of [[Plovdiv]], [[Bulgaria]]. The nearest town, [[Chepelare]], is 15 kilometers away. The observatory is owned and operated by the [[Institute of Astronomy of the Bulgarian Academy of Sciences|Institute of Astronomy]] of the [[Bulgarian Academy of Sciences]] (BAS). It was officially opened on 13 March 1981, almost 20 years after Bogomil Kovachev – a professor of astronomy at BAS, known as its founder – had started working towards that goal.<ref name="kovachev" /><ref name="fpni" /> The Observatory is the one of the largest in Southeastern Europe and has an active team of about 50 astronomers. It is the principal center for astronomical research in Bulgaria.{{Citation needed|date=April 2011}} The minor planet [[6267 Rozhen]], was discovered at, and named after the observatory.<ref name="springer-(6267) Rozhen" />

With its total cost of over $10 million at the time, it still remains to day the largest one-time investment in scientific infrastructure that Bulgaria ever made.<ref name="NAO-history" />


;Telescopes
;Telescopes
*200 cm Ritchey-Chretien telescope (supplied with Coude focus)<ref>http://www.nao-rozhen.org/telescopes/fr_en.htm </reF>
* 200&nbsp;cm Ritchey-Chretien telescope (supplied with Coude focus)<ref>{{Cite web|url=http://www.nao-rozhen.org/telescopes/fr_en.htm|title = Telescopes}}</ref>
*60 cm Cassegrain telescope
* 150&nbsp;cm Ritchey-Chrétien-Nasmyth telescope
⚫
* 60&nbsp;cm Cassegrain telescope
*50/70 cm Schmidt camera
* 50/70&nbsp;cm Schmidt camera
⚫
*15 cm [[Solar telescope]]
* 15&nbsp;cm [[Solar telescope]]


[[File:Bogomil Kovachev in 1987.jpg|thumb|left|[[Bogomil Zhivkov Kovachev|Bogomil Kovachev]], founder of the Rozhen Observatory, with a group of visiting Bulgarian scholars in the summer of 1987]]
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==WASP-3c & TTV==
{{clear|left}}
⚫
[[Transit Timing Variation]] (TTV), a variation on the transit method, was used to discover an exoplanet [[WASP-3c]] by Rozhen Observatory, [[Jena Observatory]], and [[Toruń Centre for Astronomy]]. <ref> http://www.scientificcomputing.com/news-DS-Planet-Hunting-Finding-Earth-like-Planets-071910.aspx "Planet Hunting: Finding Earth-like Planets" </ref>

⚫
== WASP-3c & TTV ==
⚫
[[Transit Timing Variation]] (TTV), a variation on the transit method, was used to discover an exoplanet [[WASP-3c]] by Rozhen Observatory, [[Jena Observatory]], and [[Toruń Centre for Astronomy]].<ref>http://www.scientificcomputing.com/news-DS-Planet-Hunting-Finding-Earth-like-Planets-071910.aspx {{Webarchive|url=https://web.archive.org/web/20100728093120/http://www.scientificcomputing.com/news-DS-Planet-Hunting-Finding-Earth-like-Planets-071910.aspx |date=28 July 2010 }} "Planet Hunting: Finding Earth-like Planets"</ref>

== See also ==
* [[List of astronomical observatories]]

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== References ==
⚫
{{reflist|refs=

<ref name="springer-(6267) Rozhen">{{cite book
|title=Dictionary of Minor Planet Names – (6267) Rozhen
|last=Schmadel |first=Lutz D.
|publisher=Springer Berlin Heidelberg
|page=522
|date=2007
|isbn=978-3-540-00238-3
|doi=10.1007/978-3-540-29925-7_5763
|chapter = (6267) Rozhen}}</ref>

<ref name="kovachev">http://www.vidin-online.com/grazhdani/prof-d-r-bogomil-kovachev : accessed 14 September 2015 (in Bulgarian)</ref>

<ref name="fpni">http://wop.fpni.eu/digital_pdf/wop/3_2012.pdf image 53 of 66 : accessed 14 September 2015 (in Bulgarian)</ref>

<ref name="NAO-history">http://nao-rozhen.org/history/fr_en.html : accessed 24 July 2020</ref>

}} <!-- end of reflist -->


== External links ==
== External links ==
⚫
{{Commons category|Rozhen observatory}}
* [http://www.nao-rozhen.org/ Official site]
* [https://web.archive.org/web/20110727110731/http://www.nao-rozhen.org/ Official site]
* [http://www.rozhen.org/ Bulgarian National Astronomical Observatory]
* [http://www.astro.bas.bg/ Home Institute site]
* [http://www.astro.bas.bg/ Home Institute site]
* [http://www.cbat.eps.harvard.edu/iauc/04400/04464.html (4486) Mithra (NEA) discovery in Rozhen Observatory 20 September 1987 by V. Shkodrov and E. Elst (IAUC 4464)]
* [http://www.cbat.eps.harvard.edu/iauc/04400/04464.html (4486) Mithra (NEA) discovery in Rozhen Observatory 20 September 1987 by V. Shkodrov and E. Elst (IAUC 4464)]
* [http://www.astro.uni-bonn.de/~maltmann/rozhen.html]
* [http://www.rozhen.org/]
* [http://www.aip.de/image_archive/Bulgaria.Rozhen.html]


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==References==
⚫
{{reflist}}

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{{Commons category|Rozhen observatory}}
{{Smolyan}}
{{Smolyan}}
{{Portal bar|Bulgaria|Astronomy|Stars|Spaceflight|Outer space|Solar System|Education|Science}}
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{{Use dmy dates|date=April 2011}}


[[Category:Bulgarian Academy of Sciences]]
[[Category:Bulgarian Academy of Sciences]]
[[Category:Astronomical observatories in Bulgaria]]
[[Category:Astronomical observatories in Bulgaria]]
[[Category:Buildings and structures in Smolyan Province]]
[[Category:Buildings and structures in Smolyan Province]]

[[bg:Национална астрономическа обсерватория - Рожен]]
[[eo:Observatorio Roĵen]]
[[de:Nazionalna astronomitscheska obserwatorija - Roschen]]
[[it:Osservatorio astronomico nazionale Rožen]]
[[ja:ロジェン天文台]]
[[ru:Болгарская национальная астрономическая обсерватория Рожен]]
[[tr:Ulusal Astronomi Gözlemevi - Rozhen]]

Latest revision as of 01:40, 26 October 2024

Rozhen Observatory
Large Telescope Dome of the Rozhen Observatory
OrganizationBulgarian Academy of Sciences
Observatory code 071 Edit this on Wikidata
LocationNear Chepelare, Bulgaria
Coordinates41°41′36″N 24°44′20″E / 41.6932°N 24.7389°E / 41.6932; 24.7389
Altitude1759 m
WebsiteNAO-Rozhen
Telescopes
Ritchey-Chretien-Coude telescope200 cm
Cassegrain telescope60 cm Cassegrain reflector
Schmidt telescope50/70 cm
Solar Coronagraph telescope15 cm
Rozhen Observatory is located in Bulgaria
Rozhen Observatory
Location of Rozhen Observatory
  Related media on Commons
[edit on Wikidata]

Rozhen Observatory (Bulgarian: Национална астрономическа обсерватория - Рожен, НАО-Рожен; English: National Astronomical Observatory - Rozhen, NAO-Rozhen), also known as the Bulgarian National Astronomical Observatory, is an astronomical observatory, located in the Smolyan Province, 90 kilometers south of the city of Plovdiv, Bulgaria. The nearest town, Chepelare, is 15 kilometers away. The observatory is owned and operated by the Institute of Astronomy of the Bulgarian Academy of Sciences (BAS). It was officially opened on 13 March 1981, almost 20 years after Bogomil Kovachev – a professor of astronomy at BAS, known as its founder – had started working towards that goal.[1][2] The Observatory is the one of the largest in Southeastern Europe and has an active team of about 50 astronomers. It is the principal center for astronomical research in Bulgaria.[citation needed] The minor planet 6267 Rozhen, was discovered at, and named after the observatory.[3]

With its total cost of over $10 million at the time, it still remains to day the largest one-time investment in scientific infrastructure that Bulgaria ever made.[4]

Telescopes
  • 200 cm Ritchey-Chretien telescope (supplied with Coude focus)[5]
  • 150 cm Ritchey-Chrétien-Nasmyth telescope
  • 60 cm Cassegrain telescope
  • 50/70 cm Schmidt camera
  • 15 cm Solar telescope
Bogomil Kovachev, founder of the Rozhen Observatory, with a group of visiting Bulgarian scholars in the summer of 1987

WASP-3c & TTV

[edit]

Transit Timing Variation (TTV), a variation on the transit method, was used to discover an exoplanet WASP-3c by Rozhen Observatory, Jena Observatory, and Toruń Centre for Astronomy.[6]

See also

[edit]

References

[edit]
  1. ^ http://www.vidin-online.com/grazhdani/prof-d-r-bogomil-kovachev : accessed 14 September 2015 (in Bulgarian)
  2. ^ http://wop.fpni.eu/digital_pdf/wop/3_2012.pdf image 53 of 66 : accessed 14 September 2015 (in Bulgarian)
  3. ^ Schmadel, Lutz D. (2007). "(6267) Rozhen". Dictionary of Minor Planet Names – (6267) Rozhen. Springer Berlin Heidelberg. p. 522. doi:10.1007/978-3-540-29925-7_5763. ISBN 978-3-540-00238-3.
  4. ^ http://nao-rozhen.org/history/fr_en.html : accessed 24 July 2020
  5. ^ "Telescopes".
  6. ^ http://www.scientificcomputing.com/news-DS-Planet-Hunting-Finding-Earth-like-Planets-071910.aspx Archived 28 July 2010 at the Wayback Machine "Planet Hunting: Finding Earth-like Planets"
[edit]
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