Luminosity function (astronomy)

Luminosity function - astronomical measure of the number of stars or galaxies per luminosity interval. Article “Luminosity function (astronomy)” in English Wikipedia has 19.7 points for quality (as of July 1, 2025). The article contains 8 references and 4 sections.

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

Since the creation of article “Luminosity function (astronomy)”, its content was written by 21 registered users of English Wikipedia and edited by 86 registered Wikipedia users in all languages.

The article is cited 42 times in English Wikipedia and cited 190 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #121905 in January 2015
• Global: #188513 in December 2014

The highest popularity rank from 2008:

• Local (English): #541631 in April 2015
• Global: #703734 in April 2015

There are 9 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	Italian (it) Funzione di luminosità (astronomia)		21.0939
2	Spanish (es) Función de luminosidad (astronomía)		20.2852
3	Chinese (zh) 光度函數 (天文學)		20.1984
4	English (en) Luminosity function (astronomy)		19.7002
5	Korean (ko) 광도함수		16.4608
6	French (fr) Fonction de luminosité		15.8042
7	Arabic (ar) دالة الإضاءة (علم الفلك)		13.6816
8	Russian (ru) Функция светимости		2.341
9	Polish (pl) Funkcja świecenia		1.7995

More...

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

The most popular language versions of the article "Luminosity function (astronomy)" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Luminosity function (astronomy)		168 568
2	Spanish (es) Función de luminosidad (astronomía)		14 888
3	Russian (ru) Функция светимости		13 892
4	Italian (it) Funzione di luminosità (astronomia)		7 770
5	Polish (pl) Funkcja świecenia		6 957
6	French (fr) Fonction de luminosité		6 023
7	Chinese (zh) 光度函數 (天文學)		5 644
8	Korean (ko) 광도함수		3 140
9	Arabic (ar) دالة الإضاءة (علم الفلك)		2 387

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 "Luminosity function (astronomy)" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Luminosity function (astronomy)		734
2	Chinese (zh) 光度函數 (天文學)		46
3	Spanish (es) Función de luminosidad (astronomía)		29
4	Korean (ko) 광도함수		28
5	Russian (ru) Функция светимости		21
6	Italian (it) Funzione di luminosità (astronomia)		16
7	Arabic (ar) دالة الإضاءة (علم الفلك)		11
8	French (fr) Fonction de luminosité		11
9	Polish (pl) Funkcja świecenia		7

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

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

#	Language	AI award	Relative AI
1	English (en) Luminosity function (astronomy)		21
2	Italian (it) Funzione di luminosità (astronomia)		16
3	French (fr) Fonction de luminosité		11
4	Russian (ru) Функция светимости		11
5	Polish (pl) Funkcja świecenia		10
6	Arabic (ar) دالة الإضاءة (علم الفلك)		6
7	Chinese (zh) 光度函數 (天文學)		6
8	Korean (ko) 광도함수		3
9	Spanish (es) Función de luminosidad (astronomía)		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 "Luminosity function (astronomy)" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Arabic (ar) دالة الإضاءة (علم الفلك)		0
2	English (en) Luminosity function (astronomy)		0
3	Spanish (es) Función de luminosidad (astronomía)		0
4	French (fr) Fonction de luminosité		0
5	Italian (it) Funzione di luminosità (astronomia)		0
6	Korean (ko) 광도함수		0
7	Polish (pl) Funkcja świecenia		0
8	Russian (ru) Функция светимости		0
9	Chinese (zh) 光度函數 (天文學)		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 "Luminosity function (astronomy)" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Arabic (ar) دالة الإضاءة (علم الفلك)		52
2	English (en) Luminosity function (astronomy)		42
3	Chinese (zh) 光度函數 (天文學)		38
4	Russian (ru) Функция светимости		28
5	French (fr) Fonction de luminosité		8
6	Italian (it) Funzione di luminosità (astronomia)		8
7	Spanish (es) Función de luminosidad (astronomía)		6
8	Polish (pl) Funkcja świecenia		5
9	Korean (ko) 광도함수		3

More...

#	Language	Value
ar	Arabic دالة الإضاءة (علم الفلك)
en	English Luminosity function (astronomy)
es	Spanish Función de luminosidad (astronomía)
fr	French Fonction de luminosité
it	Italian Funzione di luminosità (astronomia)
ko	Korean 광도함수
pl	Polish Funkcja świecenia
ru	Russian Функция светимости
zh	Chinese 光度函數 (天文學)

Best Rank

English: #541631 04.2015

Global: #703734 04.2015

Best Rank

English: #121905 01.2015

Global: #188513 12.2014

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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