Open cluster

Open cluster - group of "sibling" stars that are loosely gravitationally bound to one another. Article “Open cluster” in English Wikipedia has 83.6 points for quality (as of July 1, 2026). The article contains 79 references and 13 sections.

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

Since the creation of article “Open cluster”, its content was written by 199 registered users of English Wikipedia and edited by 1213 registered Wikipedia users in all languages.

The article is cited 1348 times in English Wikipedia and cited 24197 times in all languages (6994^th place).

The highest Authors Interest rank from 2001:

• Local (English): #1211 in July 2005
• Global: #2536 in March 2003

The highest popularity rank from 2008:

• Local (English): #19256 in January 2008
• Global: #17895 in February 2013

There are 50 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	Malay (ms) Kelompok terbuka		100
2	Chinese (zh) 疏散星团		88.5618
3	English (en) Open cluster		83.6297
4	Greek (el) Ανοικτό σμήνος		71.8421
5	Ukrainian (uk) Розсіяне скупчення		64.4314
6	Catalan (ca) Cúmul obert		63.6293
7	Serbo-Croatian (sh) Otvoreni skup		63.4664
8	Italian (it) Ammasso aperto		61.4125
9	Russian (ru) Рассеянное звёздное скопление		58.0308
10	Armenian (hy) Ցրված աստղային կուտակումներ		51.4604

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

The most popular language versions of the article "Open cluster" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Open cluster		1 391 925
2	Polish (pl) Gromada otwarta		661 649
3	Japanese (ja) 散開星団		269 355
4	Spanish (es) Cúmulo abierto		256 561
5	Russian (ru) Рассеянное звёздное скопление		254 176
6	German (de) Offener Sternhaufen		200 345
7	Italian (it) Ammasso aperto		159 251
8	French (fr) Amas ouvert		148 415
9	Chinese (zh) 疏散星团		94 156
10	Portuguese (pt) Aglomerado estelar aberto		66 910

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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 "Open cluster" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Open cluster		2 931
2	Japanese (ja) 散開星団		799
3	French (fr) Amas ouvert		476
4	Russian (ru) Рассеянное звёздное скопление		403
5	German (de) Offener Sternhaufen		355
6	Spanish (es) Cúmulo abierto		319
7	Chinese (zh) 疏散星团		302
8	Italian (it) Ammasso aperto		263
9	Polish (pl) Gromada otwarta		173
10	Dutch (nl) Open sterrenhoop		170

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

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

#	Language	AI award	Relative AI
1	English (en) Open cluster		199
2	German (de) Offener Sternhaufen		107
3	Italian (it) Ammasso aperto		91
4	Russian (ru) Рассеянное звёздное скопление		75
5	French (fr) Amas ouvert		64
6	Dutch (nl) Open sterrenhoop		56
7	Polish (pl) Gromada otwarta		42
8	Spanish (es) Cúmulo abierto		35
9	Hungarian (hu) Nyílthalmaz		35
10	Turkish (tr) Açık yıldız kümesi		33

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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 "Open cluster" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Arabic (ar) عنقود مفتوح		1
2	Hungarian (hu) Nyílthalmaz		1
3	Chinese (zh) 疏散星团		1
4	Azerbaijani (az) Açıq ulduz topası		0
5	Belarusian (be) Рассеянае зорнае скопішча		0
6	Bulgarian (bg) Разсеян звезден куп		0
7	Catalan (ca) Cúmul obert		0
8	Czech (cs) Otevřená hvězdokupa		0
9	Danish (da) Åben stjernehob		0
10	German (de) Offener Sternhaufen		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 "Open cluster" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	French (fr) Amas ouvert		1 588
2	Ukrainian (uk) Розсіяне скупчення		1 369
3	Chinese (zh) 疏散星团		1 367
4	English (en) Open cluster		1 348
5	Catalan (ca) Cúmul obert		1 329
6	Esperanto (eo) Malferma stelamaso		1 172
7	Portuguese (pt) Aglomerado estelar aberto		1 034
8	Turkish (tr) Açık yıldız kümesi		1 020
9	Slovak (sk) Otvorená hviezdokopa		1 016
10	Polish (pl) Gromada otwarta		1 004

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#	Language	Value
ar	Arabic عنقود مفتوح
az	Azerbaijani Açıq ulduz topası
be	Belarusian Рассеянае зорнае скопішча
bg	Bulgarian Разсеян звезден куп
ca	Catalan Cúmul obert
cs	Czech Otevřená hvězdokupa
da	Danish Åben stjernehob
de	German Offener Sternhaufen
el	Greek Ανοικτό σμήνος
en	English Open cluster
eo	Esperanto Malferma stelamaso
es	Spanish Cúmulo abierto
et	Estonian Hajusparv
eu	Basque Kumulu ireki
fa	Persian خوشه ستاره‌ای باز
fi	Finnish Avoin tähtijoukko
fr	French Amas ouvert
gl	Galician Cúmulo aberto
he	Hebrew צביר פתוח
hi	Hindi खुला तारागुच्छ
hr	Croatian Otvoreni skup (astronomija)
hu	Hungarian Nyílthalmaz
hy	Armenian Ցրված աստղային կուտակումներ
id	Indonesian Gugus terbuka
it	Italian Ammasso aperto
ja	Japanese 散開星団
kk	Kazakh Тарқақ үйіржұлдыз
ko	Korean 산개 성단
la	Latin Cumulus stellarum apertus
lt	Lithuanian Padrikasis spiečius
ms	Malay Kelompok terbuka
nl	Dutch Open sterrenhoop
nn	Norwegian (Nynorsk) Open stjernehop
no	Norwegian Åpen stjernehop
pl	Polish Gromada otwarta
pt	Portuguese Aglomerado estelar aberto
ro	Romanian Roi deschis
ru	Russian Рассеянное звёздное скопление
sh	Serbo-Croatian Otvoreni skup
simple	Simple English Open star cluster
sk	Slovak Otvorená hviezdokopa
sl	Slovenian Odprta zvezdna kopica
sr	Serbian Расејано звездано јато
sv	Swedish Öppen stjärnhop
th	Thai กระจุกดาวเปิด
tr	Turkish Açık yıldız kümesi
uk	Ukrainian Розсіяне скупчення
vi	Vietnamese Cụm sao mở
zh	Chinese 疏散星团
zhminnan	Min Nan Sòaⁿ-khui chheⁿ-thoân

Best Rank

English: #19256 01.2008

Global: #17895 02.2013

Best Rank

English: #1211 07.2005

Global: #2536 03.2003

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 English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

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