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gptkbp:instanceOf
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astronomer
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gptkbp:affiliation
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gptkb:Royal_Danish_Academy_of_Sciences_and_Letters
gptkb:University_of_California,_Berkeley
gptkb:University_of_Chicago
gptkb:University_of_Copenhagen
gptkb:Danish_Academy_of_Sciences_and_Letters
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gptkbp:almaMater
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gptkb:Technical_University_of_Denmark
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gptkbp:associatedWith
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gptkb:Danish_Astronomical_Society
gptkb:American_Astronomical_Society
gptkb:Royal_Astronomical_Society
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gptkbp:awards
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gptkb:Gold_Medal_of_the_Royal_Astronomical_Society
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gptkbp:born
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October 8, 1873
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gptkbp:children
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2
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gptkbp:contribution
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gptkb:Hertzsprung-Russell_diagram
stellar classification system
study of red giants
study of white dwarfs
study_of_Cepheid_variables
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gptkbp:died
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October 21, 1967
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gptkbp:field
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astronomy
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gptkbp:fieldOfStudy
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stellar classification
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https://www.w3.org/2000/01/rdf-schema#label
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Ejnar Hertzsprung
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gptkbp:inception
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1905
1911
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gptkbp:influenced
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gptkb:Harlow_Shapley
gptkb:Hermann_von_Helmholtz
gptkb:George_Ellery_Hale
gptkb:William_Wilson_Morgan
gptkb:Henrietta_Swan_Leavitt
gptkb:Cecilia_Payne-Gaposchkin
gptkb:Robert_Trumpler
gptkb:John_Charles_Adams
gptkb:Robert_J._Trumpler
Walter Baade
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gptkbp:influencedBy
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gptkb:Hermann_von_Helmholtz
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gptkbp:knownFor
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gptkb:Hertzsprung-Russell_diagram
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gptkbp:nationality
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Danish
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gptkbp:notableAlumni
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gptkb:Hertzsprung-Russell_diagram
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gptkbp:researchFocus
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spectroscopy
photometry
variable stars
stellar evolution
star formation
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gptkbp:spouse
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gptkb:Marie_Hertzsprung
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gptkbp:workLocation
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gptkb:Mount_Wilson_Observatory
gptkb:Yerkes_Observatory
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