Dwarf galaxy problem

Dwarf galaxy problem - the fact that the number of observed dwarf galaxies is orders of magnitude lower than expected from numerical cosmological simulations. Article "Dwarf galaxy problem" in English Wikipedia has 40.9 points for quality (as of July 1, 2025). The article contains 20 references and 8 sections. The article also contains quality flaw template, which reduce quality score.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that language version.

In June 2025 the article "Dwarf galaxy problem" was edited by 2 authors in English Wikipedia and written by 2 authors in all languages.

Since the creation of article "Dwarf galaxy problem", its content was written by 44 registered users of English Wikipedia and edited by 91 registered Wikipedia users in all languages.

The article is cited 96 times in English Wikipedia and cited 215 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #139280 in September 2004
• Global: #146889 in March 2024

The highest popularity rank from 2008:

• Local (English): #560454 in October 2014
• Global: #932891 in October 2014

There are 11 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	English (en) Dwarf galaxy problem		40.937
2	Chinese (zh) 矮星系問題		32.9555
3	Ukrainian (uk) Проблема карликових галактик		29.375
4	Persian (fa) مسئله کهکشان کوتوله		26.5116
5	Italian (it) Problema delle galassie nane		26.3642
6	Russian (ru) Проблема дефицита карликовых галактик		25.2649
7	Portuguese (pt) Problema da galáxia anã		24.7542
8	Catalan (ca) Problema de les galàxies nanes		24.7214
9	Spanish (es) Problema de las galaxias enanas		21.2923
10	Czech (cs) Problém trpasličích galaxií		19.2612

More...

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

The most popular language versions of the article "Dwarf galaxy problem" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Dwarf galaxy problem		110 278
2	Russian (ru) Проблема дефицита карликовых галактик		6 008
3	Chinese (zh) 矮星系問題		4 308
4	Italian (it) Problema delle galassie nane		4 012
5	French (fr) Problème des galaxies naines		3 966
6	Persian (fa) مسئله کهکشان کوتوله		3 772
7	Spanish (es) Problema de las galaxias enanas		969
8	Portuguese (pt) Problema da galáxia anã		772
9	Catalan (ca) Problema de les galàxies nanes		362
10	Czech (cs) Problém trpasličích galaxií		327

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 "Dwarf galaxy problem" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Dwarf galaxy problem		1 035
2	Chinese (zh) 矮星系問題		40
3	Russian (ru) Проблема дефицита карликовых галактик		33
4	Persian (fa) مسئله کهکشان کوتوله		15
5	Italian (it) Problema delle galassie nane		13
6	Czech (cs) Problém trpasličích galaxií		11
7	Spanish (es) Problema de las galaxias enanas		11
8	French (fr) Problème des galaxies naines		10
9	Portuguese (pt) Problema da galáxia anã		10
10	Ukrainian (uk) Проблема карликових галактик		10

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

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

#	Language	AI award	Relative AI
1	English (en) Dwarf galaxy problem		44
2	French (fr) Problème des galaxies naines		11
3	Italian (it) Problema delle galassie nane		11
4	Ukrainian (uk) Проблема карликових галактик		6
5	Czech (cs) Problém trpasličích galaxií		3
6	Spanish (es) Problema de las galaxias enanas		3
7	Persian (fa) مسئله کهکشان کوتوله		3
8	Portuguese (pt) Problema da galáxia anã		3
9	Russian (ru) Проблема дефицита карликовых галактик		3
10	Catalan (ca) Problema de les galàxies nanes		2

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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 "Dwarf galaxy problem" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	English (en) Dwarf galaxy problem		2
2	Catalan (ca) Problema de les galàxies nanes		0
3	Czech (cs) Problém trpasličích galaxií		0
4	Spanish (es) Problema de las galaxias enanas		0
5	Persian (fa) مسئله کهکشان کوتوله		0
6	French (fr) Problème des galaxies naines		0
7	Italian (it) Problema delle galassie nane		0
8	Portuguese (pt) Problema da galáxia anã		0
9	Russian (ru) Проблема дефицита карликовых галактик		0
10	Ukrainian (uk) Проблема карликових галактик		0

More...

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

Language versions of the article "Dwarf galaxy problem" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Dwarf galaxy problem		96
2	Ukrainian (uk) Проблема карликових галактик		42
3	Chinese (zh) 矮星系問題		36
4	Persian (fa) مسئله کهکشان کوتوله		18
5	French (fr) Problème des galaxies naines		8
6	Russian (ru) Проблема дефицита карликовых галактик		7
7	Portuguese (pt) Problema da galáxia anã		3
8	Spanish (es) Problema de las galaxias enanas		2
9	Catalan (ca) Problema de les galàxies nanes		1
10	Czech (cs) Problém trpasličích galaxií		1

More...

#	Language	Value
ca	Catalan Problema de les galàxies nanes
cs	Czech Problém trpasličích galaxií
en	English Dwarf galaxy problem
es	Spanish Problema de las galaxias enanas
fa	Persian مسئله کهکشان کوتوله
fr	French Problème des galaxies naines
it	Italian Problema delle galassie nane
pt	Portuguese Problema da galáxia anã
ru	Russian Проблема дефицита карликовых галактик
uk	Ukrainian Проблема карликових галактик
zh	Chinese 矮星系問題

Best Rank

English: #560454 10.2014

Global: #932891 10.2014

Best Rank

English: #139280 09.2004

Global: #146889 03.2024

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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 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