M21 (疏散星團)

Messier 21 - Open cluster. Article "M21 (疏散星團)" in Chinese Wikipedia has 39 points for quality (as of July 1, 2025). The article contains 20 references and 3 sections.

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

Since the creation of article "M21 (疏散星團)", its content was written by 12 registered users of Chinese Wikipedia and edited by 622 registered Wikipedia users in all languages.

The article is cited 164 times in Chinese Wikipedia and cited 6505 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Chinese): #4295 in August 2008
• Global: #7606 in June 2010

The highest popularity rank from 2008:

• Local (Chinese): #84374 in March 2008
• Global: #364887 in December 2009

There are 41 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, 2025 (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) Messier 21		54.2607
2	French (fr) M21 (amas ouvert)		46.9529
3	English (en) Messier 21		43.9441
4	German (de) Messier 21		39.4908
5	Chinese (zh) M21 (疏散星團)		38.9987
6	Ukrainian (uk) Мессьє 21		38.7537
7	Swedish (sv) Messier 21		36.447
8	Czech (cs) Messier 21		32.5196
9	Turkish (tr) Messier 21		31.7399
10	Croatian (hr) Messier 21		30.7206

More...

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

The most popular language versions of the article "M21 (疏散星團)" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Messier 21		86 725
2	French (fr) M21 (amas ouvert)		28 729
3	Russian (ru) M 21 (звёздное скопление)		25 058
4	Polish (pl) Messier 21		20 575
5	Japanese (ja) M21 (天体)		19 090
6	German (de) Messier 21		16 114
7	Italian (it) M21 (astronomia)		13 759
8	Korean (ko) 메시에 21		12 787
9	Chinese (zh) M21 (疏散星團)		12 308
10	Spanish (es) Cúmulo abierto M21		12 218

More...

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 "M21 (疏散星團)" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Messier 21		593
2	Chinese (zh) M21 (疏散星團)		87
3	German (de) Messier 21		75
4	French (fr) M21 (amas ouvert)		67
5	Japanese (ja) M21 (天体)		60
6	Italian (it) M21 (astronomia)		50
7	Russian (ru) M 21 (звёздное скопление)		45
8	Spanish (es) Cúmulo abierto M21		42
9	Hungarian (hu) Messier 21		30
10	Portuguese (pt) Messier 21		30

More...

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

Language versions of the article "M21 (疏散星團)" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Messier 21		66
2	French (fr) M21 (amas ouvert)		57
3	German (de) Messier 21		47
4	Italian (it) M21 (astronomia)		46
5	Dutch (nl) Messier 21		39
6	Russian (ru) M 21 (звёздное скопление)		39
7	Croatian (hr) Messier 21		29
8	Japanese (ja) M21 (天体)		29
9	Hungarian (hu) Messier 21		26
10	Finnish (fi) Messier 21		19

More...

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

Language versions of the article "M21 (疏散星團)" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	German (de) Messier 21		2
2	English (en) Messier 21		1
3	Esperanto (eo) M21		1
4	Hungarian (hu) Messier 21		1
5	Arabic (ar) مسييه 21		0
6	Azerbaijani (az) NGC 6531		0
7	Belarusian (be) M21 (аб’ект Месье)		0
8	Bulgarian (bg) M21		0
9	Catalan (ca) Messier 21		0
10	Czech (cs) Messier 21		0

More...

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

Language versions of the article "M21 (疏散星團)" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	French (fr) M21 (amas ouvert)		580
2	English (en) Messier 21		542
3	Romanian (ro) Messier 21		439
4	Basque (eu) Messier 21		392
5	Croatian (hr) Messier 21		320
6	Dutch (nl) Messier 21		306
7	Arabic (ar) مسييه 21		302
8	Korean (ko) 메시에 21		189
9	Turkish (tr) Messier 21		182
10	Persian (fa) مسیه ۲۱		164

More...

#	Language	Value
ar	Arabic مسييه 21
az	Azerbaijani NGC 6531
be	Belarusian M21 (аб’ект Месье)
bg	Bulgarian M21
ca	Catalan Messier 21
cs	Czech Messier 21
de	German Messier 21
el	Greek Μεσιέ 21
en	English Messier 21
eo	Esperanto M21
es	Spanish Cúmulo abierto M21
et	Estonian Messier 21
eu	Basque Messier 21
fa	Persian مسیه ۲۱
fi	Finnish Messier 21
fr	French M21 (amas ouvert)
he	Hebrew M21
hr	Croatian Messier 21
hu	Hungarian Messier 21
id	Indonesian Messier 21
it	Italian M21 (astronomia)
ja	Japanese M21 (天体)
ko	Korean 메시에 21
lt	Lithuanian Mesjė 21
ms	Malay Messier 21
nl	Dutch Messier 21
no	Norwegian Messier 21
pl	Polish Messier 21
pt	Portuguese Messier 21
ro	Romanian Messier 21
ru	Russian M 21 (звёздное скопление)
sh	Serbo-Croatian Messier 21
sk	Slovak Messier 21
sr	Serbian Месје 21
sv	Swedish Messier 21
tr	Turkish Messier 21
uk	Ukrainian Мессьє 21
uz	Uzbek Messier 21
vi	Vietnamese Messier 21
zh	Chinese M21 (疏散星團)
zhminnan	Min Nan Messier 21

Best Rank

Chinese: #84374 03.2008

Global: #364887 12.2009

Best Rank

Chinese: #4295 08.2008

Global: #7606 06.2010

On 12 August 2025 in multilingual Wikipedia, Internet users most often read articles on the following topics: Cristiano Ronaldo, Wednesday, Georgina Rodríguez, ChatGPT, Weapons, Jenna Ortega, deaths in 2025, Taylor Swift, Miguel Uribe Turbay, 2025–26 UEFA Champions League.

In Chinese Wikipedia the most popular articles on that day were: 朱由𣜬, 林岱樺, 林逸欣, 江油未成年人欺凌事件, 鬼滅之刃, 黃士修, 鬼滅之刃角色列表, 锦月如歌, 2025年亞洲盃籃球賽, 鬼滅之刃劇場版 無限城篇.

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 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information