# Sergey Blazhko

> Sergey Nikolayevich Blazhko was a Russian and Soviet astronomer, a corresponding member of the Academy of Sciences of the Soviet Union (1929). He was a graduate of Moscow State University and held a number of positions there including head of the Moscow Observatory from 1920-1931. He discovered a secondary variation of the amplitude and period of some RR Lyrae stars and related pulsating variables, now known as the Blazhko effect.

*Russian astronomer (1870–1956)*

**Canonical URL:** https://fame.am/person/sergey-blazhko

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Born:** 1870-11-05
- **Died:** 1956-02-11
- **Status:** deceased
- **Gender:** male

## Bio

Imported from discovery source: wikidata-dump

## Fame
- **Popularity score:** 41.8 / 100
- **Momentum:** 2.5 / 100  (trend: FALLING)
- **Historical depth:** 10.9 / 100
- **Now attention:** 0.0 / 100
- **Source confidence:** 60.0 / 100
- **Profile completeness:** 60.0 / 100

## Sources
- [谢尔盖·布拉日科](https://zh.wikipedia.org/wiki/%E8%B0%A2%E5%B0%94%E7%9B%96%C2%B7%E5%B8%83%E6%8B%89%E6%97%A5%E7%A7%91)
- [Сяргей Мікалаевіч Блажко](https://be.wikipedia.org/wiki/%D0%A1%D1%8F%D1%80%D0%B3%D0%B5%D0%B9_%D0%9C%D1%96%D0%BA%D0%B0%D0%BB%D0%B0%D0%B5%D0%B2%D1%96%D1%87_%D0%91%D0%BB%D0%B0%D0%B6%D0%BA%D0%BE)
- [Sergei Nikolajewitsch Blaschko](https://de.wikipedia.org/wiki/Sergei_Nikolajewitsch_Blaschko)
- [Σεργκέι Μπλάζκο](https://el.wikipedia.org/wiki/%CE%A3%CE%B5%CF%81%CE%B3%CE%BA%CE%AD%CE%B9_%CE%9C%CF%80%CE%BB%CE%AC%CE%B6%CE%BA%CE%BF)
- [Sergey Blazhko](https://en.wikipedia.org/wiki/Sergey_Blazhko)
- [Serguéi Blazhkó](https://es.wikipedia.org/wiki/Sergu%C3%A9i_Blazhk%C3%B3)
- [Sergueï Blajko](https://fr.wikipedia.org/wiki/Sergue%C3%AF_Blajko)
- [セルゲイ・ニコラエヴィッチ・ブラツコ](https://ja.wikipedia.org/wiki/%E3%82%BB%E3%83%AB%E3%82%B2%E3%82%A4%E3%83%BB%E3%83%8B%E3%82%B3%E3%83%A9%E3%82%A8%E3%83%B4%E3%82%A3%E3%83%83%E3%83%81%E3%83%BB%E3%83%96%E3%83%A9%E3%83%84%E3%82%B3)
- [Serghei Blajko](https://ro.wikipedia.org/wiki/Serghei_Blajko)
- [Блажко, Сергей Николаевич](https://ru.wikipedia.org/wiki/%D0%91%D0%BB%D0%B0%D0%B6%D0%BA%D0%BE%2C_%D0%A1%D0%B5%D1%80%D0%B3%D0%B5%D0%B9_%D0%9D%D0%B8%D0%BA%D0%BE%D0%BB%D0%B0%D0%B5%D0%B2%D0%B8%D1%87)
- [Sergej Nikolajevič Blažko](https://sk.wikipedia.org/wiki/Sergej_Nikolajevi%C4%8D_Bla%C5%BEko)
- [செர்கேய் பிளாசுக்கோ](https://ta.wikipedia.org/wiki/%E0%AE%9A%E0%AF%86%E0%AE%B0%E0%AF%8D%E0%AE%95%E0%AF%87%E0%AE%AF%E0%AF%8D_%E0%AE%AA%E0%AE%BF%E0%AE%B3%E0%AE%BE%E0%AE%9A%E0%AF%81%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AF%8B)
- [Блажко Сергій Миколайович](https://uk.wikipedia.org/wiki/%D0%91%D0%BB%D0%B0%D0%B6%D0%BA%D0%BE_%D0%A1%D0%B5%D1%80%D0%B3%D1%96%D0%B9_%D0%9C%D0%B8%D0%BA%D0%BE%D0%BB%D0%B0%D0%B9%D0%BE%D0%B2%D0%B8%D1%87)
- [Wikidata](https://www.wikidata.org/wiki/Q2621077)

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