Mount Wilson Observatory

Mount Wilson Observatory - astronomical observatory in Los Angeles County, California. Article “Mount Wilson Observatory” in English Wikipedia has 64.5 points for quality (as of July 1, 2026). The article contains 44 references and 19 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 7.17 points.

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

Since the creation of article “Mount Wilson Observatory”, its content was written by 208 registered users of English Wikipedia and edited by 761 registered Wikipedia users in all languages.

The article is cited 460 times in English Wikipedia and cited 2466 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #8548 in April 2003
• Global: #11501 in April 2011

The highest popularity rank from 2008:

• Local (English): #33919 in September 2009
• Global: #49575 in September 2009

There are 39 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.

#	Language	Quality grade	Quality score
1	Estonian (et) Mount Wilsoni observatoorium		81.3626
2	Hebrew (he) מצפה הר וילסון		70.3564
3	English (en) Mount Wilson Observatory		64.5226
4	Catalan (ca) Observatori de Mount Wilson		51.0603
5	Esperanto (eo) Observatorio de Monto Wilson		43.7951
6	Spanish (es) Observatorio del Monte Wilson		43.5024
7	Indonesian (id) Observatorium Gunung Wilson		32.9523
8	Serbian (sr) Opservatorija Maunt Vilson		32.6233
9	Greek (el) Αστεροσκοπείο του όρους Γουίλσον		32.3715
10	Latin (la) Observatorium Montis Wilson		27.6404

More...

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

The most popular language versions of the article "Mount Wilson Observatory" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Mount Wilson Observatory		940 644
2	German (de) Mount-Wilson-Observatorium		79 297
3	Spanish (es) Observatorio del Monte Wilson		72 981
4	French (fr) Observatoire du Mont Wilson		60 813
5	Russian (ru) Маунт-Вилсон		53 810
6	Japanese (ja) ウィルソン山天文台		49 483
7	Italian (it) Osservatorio di Monte Wilson		37 017
8	Chinese (zh) 威尔逊山天文台		32 831
9	Polish (pl) Mount Wilson Observatory		32 256
10	Portuguese (pt) Observatório Monte Wilson		21 742

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

The most popular language versions of the article "Mount Wilson Observatory" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Mount Wilson Observatory		3 042
2	Spanish (es) Observatorio del Monte Wilson		212
3	Chinese (zh) 威尔逊山天文台		197
4	Japanese (ja) ウィルソン山天文台		178
5	German (de) Mount-Wilson-Observatorium		165
6	French (fr) Observatoire du Mont Wilson		145
7	Russian (ru) Маунт-Вилсон		144
8	Italian (it) Osservatorio di Monte Wilson		85
9	Polish (pl) Mount Wilson Observatory		53
10	Catalan (ca) Observatori de Mount Wilson		43

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

Language versions of the article "Mount Wilson Observatory" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Mount Wilson Observatory		208
2	German (de) Mount-Wilson-Observatorium		71
3	French (fr) Observatoire du Mont Wilson		54
4	Italian (it) Osservatorio di Monte Wilson		49
5	Russian (ru) Маунт-Вилсон		37
6	Spanish (es) Observatorio del Monte Wilson		32
7	Dutch (nl) Mount Wilson-observatorium		32
8	Japanese (ja) ウィルソン山天文台		24
9	Chinese (zh) 威尔逊山天文台		22
10	Turkish (tr) Wilson Dağı Gözlemevi		21

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

Language versions of the article "Mount Wilson Observatory" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Catalan (ca) Observatori de Mount Wilson		1
2	Greek (el) Αστεροσκοπείο του όρους Γουίλσον		1
3	Estonian (et) Mount Wilsoni observatoorium		1
4	Serbian (sr) Opservatorija Maunt Vilson		1
5	Arabic (ar) مرصد جبل ويلسون		0
6	Czech (cs) Observatoř Mount Wilson		0
7	Danish (da) Mount Wilson Observatory		0
8	German (de) Mount-Wilson-Observatorium		0
9	English (en) Mount Wilson Observatory		0
10	Esperanto (eo) Observatorio de Monto Wilson		0

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

Language versions of the article "Mount Wilson Observatory" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Mount Wilson Observatory		460
2	German (de) Mount-Wilson-Observatorium		157
3	Spanish (es) Observatorio del Monte Wilson		145
4	French (fr) Observatoire du Mont Wilson		145
5	Chinese (zh) 威尔逊山天文台		136
6	Ukrainian (uk) Обсерваторія Маунт-Вілсон		126
7	Russian (ru) Маунт-Вилсон		125
8	Japanese (ja) ウィルソン山天文台		123
9	Italian (it) Osservatorio di Monte Wilson		118
10	Catalan (ca) Observatori de Mount Wilson		79

More...

#	Language	Value
ar	Arabic مرصد جبل ويلسون
ca	Catalan Observatori de Mount Wilson
cs	Czech Observatoř Mount Wilson
da	Danish Mount Wilson Observatory
de	German Mount-Wilson-Observatorium
el	Greek Αστεροσκοπείο του όρους Γουίλσον
en	English Mount Wilson Observatory
eo	Esperanto Observatorio de Monto Wilson
es	Spanish Observatorio del Monte Wilson
et	Estonian Mount Wilsoni observatoorium
eu	Basque Mount Wilson behatokia
fa	Persian رصدخانه مونت‌ویلسون
fi	Finnish Mount Wilsonin observatorio
fr	French Observatoire du Mont Wilson
he	Hebrew מצפה הר וילסון
hu	Hungarian Wilson-hegyi Obszervatórium
hy	Armenian Մաունթ Վիլսոնի աստղադիտարան
id	Indonesian Observatorium Gunung Wilson
it	Italian Osservatorio di Monte Wilson
ja	Japanese ウィルソン山天文台
ka	Georgian მაუნტ-უილსონის ობსერვატორია
ko	Korean 윌슨산 천문대
la	Latin Observatorium Montis Wilson
lt	Lithuanian Maunt Vilsonas
nl	Dutch Mount Wilson-observatorium
nn	Norwegian (Nynorsk) Mount Wilson-observatoriet
no	Norwegian Mount Wilson Observatory
pl	Polish Mount Wilson Observatory
pt	Portuguese Observatório Monte Wilson
ro	Romanian Observatorul Mont Wilson
ru	Russian Маунт-Вилсон
sr	Serbian Opservatorija Maunt Vilson
sv	Swedish Mount Wilson-observatoriet
tr	Turkish Wilson Dağı Gözlemevi
uk	Ukrainian Обсерваторія Маунт-Вілсон
ur	Urdu ماؤنٹ ولسن، کیلیفورنیا
uz	Uzbek Mount Wilson astronomik rasadxonasi
vi	Vietnamese Đài thiên văn Núi Wilson
zh	Chinese 威尔逊山天文台

Best Rank

English: #33919 09.2009

Global: #49575 09.2009

Best Rank

English: #8548 04.2003

Global: #11501 04.2011

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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