European Southern Observatory

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European Southern Observatory

Quality:

European Southern Observatory - intergovernmental organization and observatory in Chile. Article “European Southern Observatory” in Simple English Wikipedia has 2.6 points for quality (as of July 1, 2026).

This article has the best quality in Hebrew Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “European Southern Observatory”, its content was written by 8 registered users of Simple English Wikipedia and edited by 1369 registered Wikipedia users in all languages.

The article is cited 41 times in Simple English Wikipedia and cited 19218 times in all languages (8994th place).

The highest Authors Interest rank from 2001:

  • Local (Simple English): #1595 in October 2009
  • Global: #4244 in November 2011

The highest popularity rank from 2008:

  • Local (Simple English): #10702 in October 2016
  • Global: #88257 in August 2014

There are 49 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1Hebrew (he)
המצפה האירופי הדרומי
96
2Italian (it)
Osservatorio europeo australe
91.3966
3Chinese (zh)
欧洲南方天文台
86.4753
4English (en)
European Southern Observatory
82.6661
5Vietnamese (vi)
Tổ chức Nghiên cứu thiên văn châu Âu tại Nam Bán cầu
67.2184
6Spanish (es)
Observatorio Europeo Austral
65.401
7Estonian (et)
Euroopa Lõunaobservatoorium
57.0848
8Catalan (ca)
Observatori Europeu Austral
56.9822
9Slovenian (sl)
Evropski južni observatorij
56.6927
10German (de)
Europäische Südsternwarte
50.5637
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "European Southern Observatory" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
European Southern Observatory
961 680
2German (de)
Europäische Südsternwarte
267 755
3Spanish (es)
Observatorio Europeo Austral
163 708
4French (fr)
Observatoire européen austral
122 624
5Polish (pl)
Europejskie Obserwatorium Południowe
92 208
6Russian (ru)
Европейская южная обсерватория
87 859
7Chinese (zh)
欧洲南方天文台
80 461
8Italian (it)
Osservatorio europeo australe
80 247
9Japanese (ja)
ヨーロッパ南天天文台
76 104
10Portuguese (pt)
Observatório Europeu do Sul
62 640
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2026

The most popular language versions of the article "European Southern Observatory" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
European Southern Observatory
2 662
2German (de)
Europäische Südsternwarte
571
3Chinese (zh)
欧洲南方天文台
400
4French (fr)
Observatoire européen austral
326
5Spanish (es)
Observatorio Europeo Austral
247
6Russian (ru)
Европейская южная обсерватория
211
7Italian (it)
Osservatorio europeo australe
169
8Japanese (ja)
ヨーロッパ南天天文台
159
9Polish (pl)
Europejskie Obserwatorium Południowe
150
10Portuguese (pt)
Observatório Europeu do Sul
68
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "European Southern Observatory" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
European Southern Observatory
224
2German (de)
Europäische Südsternwarte
133
3French (fr)
Observatoire européen austral
130
4Italian (it)
Osservatorio europeo australe
100
5Dutch (nl)
Europese Zuidelijke Sterrenwacht
68
6Spanish (es)
Observatorio Europeo Austral
52
7Russian (ru)
Европейская южная обсерватория
47
8Danish (da)
European Southern Observatory
43
9Chinese (zh)
欧洲南方天文台
36
10Finnish (fi)
Euroopan eteläinen observatorio
35
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2026

Language versions of the article "European Southern Observatory" with the highest AI in June 2026
#LanguageAI awardRelative AI
1Catalan (ca)
Observatori Europeu Austral
2
2Hebrew (he)
המצפה האירופי הדרומי
2
3Spanish (es)
Observatorio Europeo Austral
1
4Basque (eu)
Hegoaldeko Behatoki Europarra
1
5Arabic (ar)
المرصد الأوروبي الجنوبي
0
6Azerbaijani (az)
Avropa Cənub Rəsədxanası
0
7Belarusian (be)
Еўрапейская паўднёвая абсерваторыя
0
8Bulgarian (bg)
Европейска южна обсерватория
0
9Czech (cs)
Evropská jižní observatoř
0
10Danish (da)
European Southern Observatory
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "European Southern Observatory" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1German (de)
Europäische Südsternwarte
3 387
2French (fr)
Observatoire européen austral
2 831
3Dutch (nl)
Europese Zuidelijke Sterrenwacht
1 972
4English (en)
European Southern Observatory
1 428
5Italian (it)
Osservatorio europeo australe
1 010
6Croatian (hr)
Europski južni opservatorij
893
7Urdu (ur)
یورپی جنوبی رصدگاہ
839
8Vietnamese (vi)
Tổ chức Nghiên cứu thiên văn châu Âu tại Nam Bán cầu
727
9Polish (pl)
Europejskie Obserwatorium Południowe
527
10Esperanto (eo)
Eŭropa suda observatorio
502
More...

Scores

Estimated value for Wikipedia:
Simple English:
Global:
Popularity in June 2026:
Simple English:
Global:
Popularity in all years:
Simple English:
Global:
Authors in June 2026:
Simple English:
Global:
Registered authors in all years:
Simple English:
Global:
Citations:
Simple English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
المرصد الأوروبي الجنوبي
azAzerbaijani
Avropa Cənub Rəsədxanası
beBelarusian
Еўрапейская паўднёвая абсерваторыя
bgBulgarian
Европейска южна обсерватория
caCatalan
Observatori Europeu Austral
csCzech
Evropská jižní observatoř
daDanish
European Southern Observatory
deGerman
Europäische Südsternwarte
elGreek
Ευρωπαϊκό Νότιο Αστεροσκοπείο
enEnglish
European Southern Observatory
eoEsperanto
Eŭropa suda observatorio
esSpanish
Observatorio Europeo Austral
etEstonian
Euroopa Lõunaobservatoorium
euBasque
Hegoaldeko Behatoki Europarra
faPersian
رصدخانه جنوبی اروپا
fiFinnish
Euroopan eteläinen observatorio
frFrench
Observatoire européen austral
glGalician
Observatorio Europeo Austral
heHebrew
המצפה האירופי הדרומי
hiHindi
यूरोपीय दक्षिणी वेधशाला
hrCroatian
Europski južni opservatorij
huHungarian
Európai Déli Obszervatórium
hyArmenian
Եվրոպական հարավային աստղադիտարան
idIndonesian
Observatorium Selatan Eropa
itItalian
Osservatorio europeo australe
jaJapanese
ヨーロッパ南天天文台
koKorean
유럽 남방 천문대
laLatin
Observatorium Europaeum australe
msMalay
Balai Cerap Selatan Eropah
nlDutch
Europese Zuidelijke Sterrenwacht
nnNorwegian (Nynorsk)
Det europeiske sørobservatoriet
noNorwegian
Det europeiske sørobservatoriet
plPolish
Europejskie Obserwatorium Południowe
ptPortuguese
Observatório Europeu do Sul
roRomanian
European Southern Observatory
ruRussian
Европейская южная обсерватория
shSerbo-Croatian
Evropski južni opservatorij
simpleSimple English
European Southern Observatory
skSlovak
Európske južné observatórium
slSlovenian
Evropski južni observatorij
srSerbian
Европска јужна опсерваторија
svSwedish
Europeiska sydobservatoriet
thThai
หอดูดาวท้องฟ้าซีกใต้แห่งยุโรป
trTurkish
Avrupa Güney Rasathanesi
ukUkrainian
Європейська південна обсерваторія
urUrdu
یورپی جنوبی رصدگاہ
uzUzbek
Yevropa janubiy rasadxonasi
viVietnamese
Tổ chức Nghiên cứu thiên văn châu Âu tại Nam Bán cầu
zhChinese
欧洲南方天文台

Popularity rank trends

Best Rank Simple English:
#10702
10.2016
Global:
#88257
08.2014

AI rank trends

Best Rank Simple English:
#1595
10.2009
Global:
#4244
11.2011

Local AI rank history

Global AI rank history

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on European Southern Observatory from Wikipedia articles about Extremely Large Telescope, Very Large Telescope, Paranal Observatory, Proxima Centauri b and Astronomy. Whereas reading the article about European Southern Observatory people most often go to Wikipedia articles on Extremely Large Telescope, Paranal Observatory, La Silla Observatory, Atacama Large Millimeter Array and Very Large Telescope.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 1 July 2026

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In Simple English Wikipedia the most popular articles on that day were: List of European countries, Black, List of sex positions, 2026 Iran war, Suresh Raina, Politics of Germany, Academy Award for Best Director, 2020, DYSS-TV, 2022.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information