Solar constant

en

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Solar constant

Quality:

Solar constant - intensity of sunlight. Article “Solar constant” in English Wikipedia has 50.1 points for quality (as of July 1, 2026). The article contains 18 references and 12 sections.

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

In June 2026 the article “Solar constant” was edited by 1 authors in English Wikipedia and written by 4 authors in all languages.

Since the creation of article “Solar constant”, its content was written by 98 registered users of English Wikipedia and edited by 816 registered Wikipedia users in all languages.

The article is cited 212 times in English Wikipedia and cited 1426 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #16167 in October 2004
  • Global: #11295 in June 2004

The highest popularity rank from 2008:

  • Local (English): #99457 in September 2014
  • Global: #66548 in April 2015

There are 36 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.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Solar constant
50.0846
2Tamil (ta)
சூரிய மாறிலி
49.9847
3Chinese (zh)
太陽常數
44.0444
4Polish (pl)
Stała słoneczna
35.8285
5Ukrainian (uk)
Сонячна стала
33.8323
6Norwegian (Nynorsk) (nn)
Solarkonstanten
32.9583
7Croatian (hr)
Sunčeva konstanta
31.8666
8Korean (ko)
태양 상수
31.8204
9Armenian (hy)
Արեգակնային հաստատուն
28.2077
10French (fr)
Constante solaire
27.6002
More...

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

Most popular in all the time

The most popular language versions of the article "Solar constant" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Solar constant
1 356 118
2German (de)
Solarkonstante
752 650
3Spanish (es)
Constante solar
424 093
4French (fr)
Constante solaire
270 842
5Japanese (ja)
太陽定数
226 819
6Polish (pl)
Stała słoneczna
202 304
7Russian (ru)
Солнечная постоянная
201 464
8Italian (it)
Costante solare
118 048
9Chinese (zh)
太陽常數
74 287
10Portuguese (pt)
Constante solar
72 909
More...

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

Most popular in June 2026

The most popular language versions of the article "Solar constant" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
Solar constant
2 164
2German (de)
Solarkonstante
1 443
3Japanese (ja)
太陽定数
400
4French (fr)
Constante solaire
397
5Russian (ru)
Солнечная постоянная
237
6Polish (pl)
Stała słoneczna
205
7Czech (cs)
Sluneční konstanta
202
8Chinese (zh)
太陽常數
177
9Spanish (es)
Constante solar
150
10Italian (it)
Costante solare
133
More...

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

The highest AI

Language versions of the article "Solar constant" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1German (de)
Solarkonstante
148
2English (en)
Solar constant
98
3French (fr)
Constante solaire
87
4Polish (pl)
Stała słoneczna
55
5Italian (it)
Costante solare
52
6Dutch (nl)
Zonneconstante
40
7Russian (ru)
Солнечная постоянная
37
8Spanish (es)
Constante solar
36
9Danish (da)
Solarkonstant
26
10Hungarian (hu)
Napállandó
23
More...

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

The highest AI in June 2026

Language versions of the article "Solar constant" with the highest AI in June 2026
#LanguageAI awardRelative AI
1English (en)
Solar constant
1
2Persian (fa)
ثابت خورشیدی
1
3Korean (ko)
태양 상수
1
4Ukrainian (uk)
Сонячна стала
1
5Arabic (ar)
ثابت شمسي
0
6Belarusian (be)
Сонечная пастаянная
0
7Catalan (ca)
Constant solar
0
8Czech (cs)
Sluneční konstanta
0
9Danish (da)
Solarkonstant
0
10German (de)
Solarkonstante
0
More...

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

The highest CI

Language versions of the article "Solar constant" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1French (fr)
Constante solaire
376
2English (en)
Solar constant
212
3Chinese (zh)
太陽常數
113
4Romanian (ro)
Constantă solară
94
5German (de)
Solarkonstante
66
6Polish (pl)
Stała słoneczna
58
7Japanese (ja)
太陽定数
43
8Slovak (sk)
Slnečná konštanta
43
9Spanish (es)
Constante solar
37
10Italian (it)
Costante solare
31
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2026:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2026:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
ثابت شمسي
beBelarusian
Сонечная пастаянная
caCatalan
Constant solar
csCzech
Sluneční konstanta
daDanish
Solarkonstant
deGerman
Solarkonstante
elGreek
Ηλιακή σταθερά
enEnglish
Solar constant
esSpanish
Constante solar
etEstonian
Solaarkonstant
faPersian
ثابت خورشیدی
fiFinnish
Aurinkovakio
frFrench
Constante solaire
heHebrew
הקבוע הסולארי
hrCroatian
Sunčeva konstanta
huHungarian
Napállandó
hyArmenian
Արեգակնային հաստատուն
itItalian
Costante solare
jaJapanese
太陽定数
kkKazakh
Күн тұрақтысы
koKorean
태양 상수
nlDutch
Zonneconstante
nnNorwegian (Nynorsk)
Solarkonstanten
noNorwegian
Solkonstanten
plPolish
Stała słoneczna
ptPortuguese
Constante solar
roRomanian
Constantă solară
ruRussian
Солнечная постоянная
shSerbo-Croatian
Sunčeva konstanta
skSlovak
Slnečná konštanta
slSlovenian
Solarna konstanta
srSerbian
Sunčeva konstanta
taTamil
சூரிய மாறிலி
trTurkish
Güneş enerjisi sabiti
ukUkrainian
Сонячна стала
zhChinese
太陽常數

Popularity rank trends

Best Rank English:
#99457
09.2014
Global:
#66548
04.2015

AI rank trends

Best Rank English:
#16167
10.2004
Global:
#11295
06.2004

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Solar constant from Wikipedia articles about Solar irradiance, Solar radiation, Sun, Solar luminosity and Venus. Whereas reading the article about Solar constant people most often go to Wikipedia articles on Solar irradiance, Faint young Sun paradox, Earths energy budget, Irradiance and Solar energy.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 1 July 2026

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.

About WikiRank

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