# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/sergey-blazhko
# Generated: 2026-08-13T15:08:35.544Z

schema: https://schema.org/Person
url: "https://fame.am/person/sergey-blazhko"
name: "Sergey Blazhko"
slug: "sergey-blazhko"
description: "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."
tagline: "Russian astronomer (1870–1956)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/%D0%91%D0%BB%D0%B0%D0%B6%D0%BA%D0%BE_%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.jpg?width=1200"
gender: "male"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1870-11-05"
deathDate: "1956-02-11"
livingStatus: "DECEASED"
scores:
  popularity:           41.75
  momentum:             2.47787610619469
  historical:           10.93840933333333
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  60
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "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"
    title: "谢尔盖·布拉日科"
    type:  "WIKIPEDIA"
  - url: "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"
    title: "Сяргей Мікалаевіч Блажко"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Sergei_Nikolajewitsch_Blaschko"
    title: "Sergei Nikolajewitsch Blaschko"
    type:  "WIKIPEDIA"
  - url: "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"
    title: "Σεργκέι Μπλάζκο"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Sergey_Blazhko"
    title: "Sergey Blazhko"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Sergu%C3%A9i_Blazhk%C3%B3"
    title: "Serguéi Blazhkó"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Sergue%C3%AF_Blajko"
    title: "Sergueï Blajko"
    type:  "WIKIPEDIA"
  - url: "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"
    title: "セルゲイ・ニコラエヴィッチ・ブラツコ"
    type:  "WIKIPEDIA"
  - url: "https://ro.wikipedia.org/wiki/Serghei_Blajko"
    title: "Serghei Blajko"
    type:  "WIKIPEDIA"
  - url: "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"
    title: "Блажко, Сергей Николаевич"
    type:  "WIKIPEDIA"
  - url: "https://sk.wikipedia.org/wiki/Sergej_Nikolajevi%C4%8D_Bla%C5%BEko"
    title: "Sergej Nikolajevič Blažko"
    type:  "WIKIPEDIA"
  - url: "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"
    title: "செர்கேய் பிளாசுக்கோ"
    type:  "WIKIPEDIA"
  - url: "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"
    title: "Блажко Сергій Миколайович"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q2621077"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump