Utrecht / Berlin / Copenhagen / Leipzig / Frederiksberg / Paris / Flagstaff / /
Company
Cepheid / /
Country
Netherlands / Denmark / /
Event
Employment Change / Person Travel / /
Facility
Leiden Observatory / Polytechnic Institute / University of Gottingen / University of Copenhagen / Potsdam Observatory / /
IndustryTerm
crucial tool / chemical engineering / state life insurance / /
Organization
Polytechnic Institute in Copenhagen / Royal Astronomical Society / University of Copenhagen / Astronomical Society of the Pacific / University of Gottingen / /
Person
Ludwig Hertzsprung / Henriette Christiane Charlotte Frost / Dieter B. Herrmann / Mariette Augustine Albertine Kapteyn / Henry Norris Russell / De Sitter / Russell Diagram / Antonia Mauiy / Willem / George Darwin Lecture / Severin Carel Ludwig Hertzsprung / Karl Schwarzschild / /
Position
Groningen astronomer / professor / adjunct director / director / astronomer / director of the Leiden Observ'atory / senior staff astronomer / director of the state life insurance company / associate professor / director of the observatory / chemist / /
ProvinceOrState
Arizona / Massachusetts / /
PublishedMedium
Astrophysical Journal / Popular Astronomy / Monthly Notices of the Royal Astronomical Society / Physics Today / Publications of the Astronomical Society of the Pacific / /
BIOGRAPHIES mo EjNAR H E R T Z S P R U N G