Jules Janssen

E356574

Jules Janssen was a 19th-century French astronomer renowned for his pioneering work in solar spectroscopy and the discovery of helium in the Sun’s spectrum.

All labels observed (3)

Label Occurrences
Jules Janssen canonical 3
Norman Lockyer 1
Pierre Janssen 1

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Statements (46)

Predicate Object
instanceOf French scientist
astronomer
human
awardReceived Lalande Prize
Rumford Medal
Valz Prize
birthCountry France
birthDate 1824-02-22
birthPlace Paris
contributedTo development of astrophysics as a discipline
deathCountry France
deathDate 1907-12-23
deathPlace Paris
developed photographic revolver
discovered helium in the solar spectrum
discoveryYear 1868
educatedAt Lycée Charlemagne
Sorbonne University
employer Paris Observatory
era 19th century
familyName Janssen
fieldOfWork astronomy
astrophysics
spectroscopy
founded Observatory of Meudon
surface form: Meudon astrophysical observatory
givenName Pierre Jules César
hasHonor Janssen Medal of the French Academy of Sciences
asteroid 1991 Jules Janssen named after him
crater Janssen on the Moon named after him
knownFor early astrophotography
invention of the photographic revolver
observation of helium in the solar spectrum
solar spectroscopy
studies of solar eclipses
language French
memberOf Bureau des Longitudes
Académie des Sciences
surface form: French Academy of Sciences
nationality French
observedEvent total solar eclipse of 1868
occupation astronomer
physicist
positionHeld director of the Meudon Observatory
studied solar atmosphere
solar prominences
usedInstrument spectroscope
workLocation Observatory of Meudon
surface form: Meudon Observatory

How these facts were elicited

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.

Lalande Prize hasNotableRecipient Jules Janssen
Nature founder Jules Janssen
this entity surface form: Norman Lockyer
Prix Jules Janssen namedAfter Jules Janssen
Paris Observatory notableAstronomer Jules Janssen
Janssen Medal namedAfter Jules Janssen
this entity surface form: Pierre Janssen