Rotation period (astronomy)

Rotation period - (of a celestial object) time that it takes to complete one revolution around its axis of rotation relative to the background stars. Article “Rotation period (astronomy)” in English Wikipedia has 43.7 points for quality (as of July 1, 2026). The article contains 40 references and 6 sections.

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

Since the creation of article “Rotation period (astronomy)”, its content was written by 110 registered users of English Wikipedia and edited by 693 registered Wikipedia users in all languages.

The article is cited 2522 times in English Wikipedia and cited 61618 times in all languages (2730^th place).

The highest Authors Interest rank from 2001:

• Local (English): #28358 in May 2008
• Global: #7888 in August 2011

The highest popularity rank from 2008:

• Local (English): #126859 in June 2010
• Global: #56109 in October 2014

There are 43 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	Chinese (zh) 自轉週期		49.4029
2	Malay (ms) Tempoh putaran		47.3832
3	English (en) Rotation period (astronomy)		43.6876
4	Indonesian (id) Periode rotasi		32.5158
5	Arabic (ar) فترة التناوب		29.5855
6	Vietnamese (vi) Chu kỳ quay quanh trục		28.8012
7	Armenian (hy) Պտույտի պարբերություն		27.6883
8	Japanese (ja) 自転周期		26.7908
9	Simple English (simple) Rotation period		26.7824
10	Romanian (ro) Perioadă de rotație		26.3116

More...

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

The most popular language versions of the article "Rotation period (astronomy)" in all the time

#	Language	Popularity award	Relative popularity
1	Italian (it) Periodo di rotazione		1 080 981
2	English (en) Rotation period (astronomy)		1 020 333
3	French (fr) Période de rotation		542 658
4	Spanish (es) Período de rotación		313 433
5	Russian (ru) Период вращения		271 453
6	Japanese (ja) 自転周期		268 926
7	Ukrainian (uk) Період обертання		231 316
8	German (de) Rotationsperiode		127 048
9	Polish (pl) Okres obrotu		100 525
10	Chinese (zh) 自轉週期		85 549

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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 "Rotation period (astronomy)" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Rotation period (astronomy)		1 583
2	French (fr) Période de rotation		533
3	Italian (it) Periodo di rotazione		448
4	Chinese (zh) 自轉週期		434
5	Japanese (ja) 自転周期		417
6	German (de) Rotationsperiode		240
7	Russian (ru) Период вращения		231
8	Spanish (es) Período de rotación		133
9	Dutch (nl) Rotatieperiode		80
10	Turkish (tr) Dönme süresi		62

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

Language versions of the article "Rotation period (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) Rotation period (astronomy)		110
2	French (fr) Période de rotation		92
3	Italian (it) Periodo di rotazione		90
4	German (de) Rotationsperiode		40
5	Russian (ru) Период вращения		32
6	Spanish (es) Período de rotación		27
7	Croatian (hr) Rotacijski period		26
8	Dutch (nl) Rotatieperiode		25
9	Hebrew (he) זמן סיבוב עצמי		24
10	Catalan (ca) Període de rotació		23

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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 "Rotation period (astronomy)" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	Basque (eu) Biraketa periodo		1
2	Japanese (ja) 自転周期		1
3	Arabic (ar) فترة التناوب		0
4	Azerbaijani (az) Fırlanma periodu		0
5	Belarusian (be) Перыяд вярчэння		0
6	Bulgarian (bg) Период на въртене		0
7	Catalan (ca) Període de rotació		0
8	German (de) Rotationsperiode		0
9	English (en) Rotation period (astronomy)		0
10	Esperanto (eo) Rotacia periodo		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 "Rotation period (astronomy)" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Esperanto (eo) Rotacia periodo		12 335
2	Spanish (es) Período de rotación		8 346
3	Arabic (ar) فترة التناوب		6 153
4	Ukrainian (uk) Період обертання		4 000
5	Portuguese (pt) Período de rotação		3 873
6	Finnish (fi) Pyörähdysaika		3 585
7	Russian (ru) Период вращения		2 728
8	Polish (pl) Okres obrotu		2 677
9	Italian (it) Periodo di rotazione		2 572
10	English (en) Rotation period (astronomy)		2 522

More...

#	Language	Value
ar	Arabic فترة التناوب
az	Azerbaijani Fırlanma periodu
be	Belarusian Перыяд вярчэння
bg	Bulgarian Период на въртене
ca	Catalan Període de rotació
de	German Rotationsperiode
en	English Rotation period (astronomy)
eo	Esperanto Rotacia periodo
es	Spanish Período de rotación
et	Estonian Pöörlemisperiood
eu	Basque Biraketa periodo
fa	Persian دوره چرخش
fi	Finnish Pyörähdysaika
fr	French Période de rotation
he	Hebrew זמן סיבוב עצמי
hi	Hindi घूर्णन काल
hr	Croatian Rotacijski period
hy	Armenian Պտույտի պարբերություն
id	Indonesian Periode rotasi
it	Italian Periodo di rotazione
ja	Japanese 自転周期
kk	Kazakh Айналыс кезеңі
ko	Korean 자전 주기
ms	Malay Tempoh putaran
nl	Dutch Rotatieperiode
nn	Norwegian (Nynorsk) Rotasjonsperiode
no	Norwegian Rotasjonsperiode
pl	Polish Okres obrotu
pt	Portuguese Período de rotação
ro	Romanian Perioadă de rotație
ru	Russian Период вращения
sh	Serbo-Croatian Period rotacije
simple	Simple English Rotation period
sk	Slovak Rotačná perióda
sl	Slovenian Vrtilna doba
sr	Serbian Период ротације
sv	Swedish Rotationsperiod
ta	Tamil சுழற்சிக் காலம்
th	Thai คาบการหมุนรอบตัวเอง
tr	Turkish Dönme süresi
uk	Ukrainian Період обертання
vi	Vietnamese Chu kỳ quay quanh trục
zh	Chinese 自轉週期

Best Rank

English: #126859 06.2010

Global: #56109 10.2014

Best Rank

English: #28358 05.2008

Global: #7888 08.2011

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