# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/william-kenneth-hartmann
# Generated: 2026-08-14T02:10:48.797Z

schema: https://schema.org/Person
url: "https://fame.am/person/william-kenneth-hartmann"
name: "William Kenneth Hartmann"
slug: "william-kenneth-hartmann"
description: "William Kenneth Hartmann is an American planetary scientist, artist, author, and writer. He was the first to convince the scientific mainstream that the Earth had once been hit by a planet sized body (Theia), creating both the Moon and the Earth's 23.5° tilt."
tagline: "American astronomer"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/William_Kenneth_Hartmann_1998.png?width=1200"
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: "1939-06-06"
livingStatus: "LIVING"
scores:
  popularity:           42.36
  momentum:             0
  historical:           10.27768266666667
  currentAttention:     0
  sourceConfidence:     65
  profileCompleteness:  75
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
platforms:
  - platform:  "IMDB"
    url:       "https://www.imdb.com/name/nm1581216/"
    handle:    "nm1581216"
sources:
  - url: "https://zh.wikipedia.org/wiki/%E5%A8%81%E5%BB%89%C2%B7%E8%82%AF%E5%B0%BC%E6%96%AF%C2%B7%E5%93%88%E7%89%B9%E6%9B%BC"
    title: "威廉·肯尼斯·哈特曼"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D9%88%D9%8A%D9%84%D9%8A%D8%A7%D9%85_%D9%83%D9%8A%D9%86%D9%8A%D8%AB_%D9%87%D8%A7%D8%B1%D8%AA%D9%85%D8%A7%D9%86"
    title: "ويليام كينيث هارتمان"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D9%88%D9%8A%D9%84%D9%8A%D8%A7%D9%85_%D9%83%D9%8A%D9%86%D9%8A%D8%AB_%D9%87%D8%A7%D8%B1%D8%AA%D9%85%D8%A7%D9%86"
    title: "ويليام كينيث هارتمان"
    type:  "WIKIPEDIA"
  - url: "https://azb.wikipedia.org/wiki/%D9%88%DB%8C%D9%84%DB%8C%D8%A7%D9%85_%DA%A9%D9%86%D8%AA_%D9%87%D8%A7%D8%B1%D8%AA%D9%85%D9%86"
    title: "ویلیام کنت هارتمن"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/William_Hartmann"
    title: "William Hartmann"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/William_Kenneth_Hartmann"
    title: "William Kenneth Hartmann"
    type:  "WIKIPEDIA"
  - url: "https://fi.wikipedia.org/wiki/William_Kenneth_Hartmann"
    title: "William Kenneth Hartmann"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/William_Kenneth_Hartmann"
    title: "William Kenneth Hartmann"
    type:  "WIKIPEDIA"
  - url: "https://id.wikipedia.org/wiki/William_Kenneth_Hartmann"
    title: "William Kenneth Hartmann"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/William_Hartmann"
    title: "William Hartmann"
    type:  "WIKIPEDIA"
  - url: "https://pt.wikipedia.org/wiki/William_Kenneth_Hartmann"
    title: "William Kenneth Hartmann"
    type:  "WIKIPEDIA"
  - url: "https://vi.wikipedia.org/wiki/William_K._Hartmann"
    title: "William K. Hartmann"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q1097274"
    title: "Wikidata"
    type:  "WIKIDATA"

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