# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/carl-keenan-seyfert
# Generated: 2026-08-15T01:29:33.454Z

schema: https://schema.org/Person
url: "https://fame.am/person/carl-keenan-seyfert"
name: "Carl Keenan Seyfert"
slug: "carl-keenan-seyfert"
description: "Carl Keenan Seyfert was an American astronomer. He is best known for his 1943 research paper on high-excitation line emission from the centers of some spiral galaxies, which are named Seyfert galaxies after him. Seyfert's Sextet, a group of galaxies, is also named after him."
tagline: "American astronomer (1911–1960)"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1911-02-11"
deathDate: "1960-06-13"
livingStatus: "DECEASED"
scores:
  popularity:           50.83
  momentum:             1.257668711656442
  historical:           20.74654533333334
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  55
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://tr.wikipedia.org/wiki/Carl_Keenan_Seyfert"
    title: "Carl Keenan Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D9%83%D8%A7%D8%B1%D9%84_%D8%B2%D8%A7%D9%8A%D9%81%D8%B1%D8%AA"
    title: "كارل زايفرت"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D9%83%D8%A7%D8%B1%D9%84_%D8%B2%D8%A7%D9%8A%D9%81%D8%B1%D8%AA"
    title: "كارل زايفرت"
    type:  "WIKIPEDIA"
  - url: "https://azb.wikipedia.org/wiki/%DA%A9%D8%A7%D8%B1%D9%84_%DA%A9%DB%8C%D9%86%D9%86_%D8%B3%DB%8C%D9%81%D8%B1%D8%AA"
    title: "کارل کینن سیفرت"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Carl_Keenan_Seyfert"
    title: "Carl Keenan Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://cs.wikipedia.org/wiki/Carl_Seyfert"
    title: "Carl Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Carl_Keenan_Seyfert"
    title: "Carl Keenan Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://el.wikipedia.org/wiki/%CE%9A%CE%B1%CF%81%CE%BB_%CE%A3%CE%AF%CF%86%CE%B5%CF%81%CF%84"
    title: "Καρλ Σίφερτ"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Carl_K._Seyfert"
    title: "Carl K. Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Carl_Keenan_Seyfert"
    title: "Carl Keenan Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%DA%A9%D8%A7%D8%B1%D9%84_%DA%A9%DB%8C%D9%86%D9%86_%D8%B3%DB%8C%D9%81%D8%B1%D8%AA"
    title: "کارل کینن سیفرت"
    type:  "WIKIPEDIA"
  - url: "https://fi.wikipedia.org/wiki/Carl_Keenan_Seyfert"
    title: "Carl Keenan Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Carl_Keenan_Seyfert"
    title: "Carl Keenan Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://ga.wikipedia.org/wiki/Carl_Keenan_Seyfert"
    title: "Carl Keenan Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/Carl_Keenan_Seyfert"
    title: "Carl Keenan Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://ja.wikipedia.org/wiki/%E3%82%AB%E3%83%BC%E3%83%AB%E3%83%BB%E3%82%BB%E3%82%A4%E3%83%95%E3%82%A1%E3%83%BC%E3%83%88"
    title: "カール・セイファート"
    type:  "WIKIPEDIA"
  - url: "https://ko.wikipedia.org/wiki/%EC%B9%BC_%ED%82%A4%EB%84%8C_%EC%84%B8%EC%9D%B4%ED%8D%BC%ED%8A%B8"
    title: "칼 키넌 세이퍼트"
    type:  "WIKIPEDIA"
  - url: "https://lb.wikipedia.org/wiki/Carl_Keenan_Seyfert"
    title: "Carl Keenan Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://nl.wikipedia.org/wiki/Carl_Keenan_Seyfert"
    title: "Carl Keenan Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://pl.wikipedia.org/wiki/Carl_Seyfert"
    title: "Carl Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/Carl_K._Seyfert"
    title: "Carl K. Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://ru.wikipedia.org/wiki/%D0%A1%D0%B5%D0%B9%D1%84%D0%B5%D1%80%D1%82%2C_%D0%9A%D0%B0%D1%80%D0%BB_%D0%9A%D0%B8%D0%BD%D0%B0%D0%BD"
    title: "Сейферт, Карл Кинан"
    type:  "WIKIPEDIA"
  - url: "https://sl.wikipedia.org/wiki/Carl_Keenan_Seyfert"
    title: "Carl Keenan Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://sv.wikipedia.org/wiki/Carl_Seyfert"
    title: "Carl Seyfert"
    type:  "WIKIPEDIA"
  - url: "https://ta.wikipedia.org/wiki/%E0%AE%95%E0%AE%BE%E0%AE%B0%E0%AF%8D%E0%AE%B2%E0%AF%8D_%E0%AE%95%E0%AF%80%E0%AE%A9%E0%AE%BE%E0%AE%A9%E0%AF%8D_%E0%AE%9A%E0%AF%80%E0%AE%AA%E0%AF%86%E0%AE%B0%E0%AF%8D%E0%AE%9F%E0%AF%8D"
    title: "கார்ல் கீனான் சீபெர்ட்"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q453675"
    title: "Wikidata"
    type:  "WIKIDATA"

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