a person in the record
Pieter Johannes van Rhijn
Dutch astronomer1886 to 1960
Wikidata names Jacobus Kapteyn as doctoral advisor and lists 9 doctoral students. Linked to Wikidata, Mathematics Genealogy Project, and 5 other registers.

How to read the markscited by a repository's recordstated by Wikidata or indexed by OpenAlexclaimed on an ORCID list, or inferred
Advisors on Wikidata1
From Wikidata, shown separately from the thesis records.
- stated by Wikidata
Students on Wikidata9
From Wikidata, shown separately from the thesis records.
- stated by Wikidataborn 1894
- stated by Wikidataborn 1896
- stated by Wikidataborn 1900
- stated by Wikidataborn 1901
- stated by Wikidataborn 1903
- stated by Wikidataborn 1906
- stated by Wikidataborn 1911
- stated by Wikidataborn 1914
- stated by Wikidata
The line above and below4 steps
The advisors of their advisors, four steps up at most, in the thesis records and on Wikidata, each kind marked; a person in both is listed once.
- 1 step up
stated by WikidataJacobus Kapteyn
- 2 steps up
stated by WikidataCornelius Hubertus Carolus Grinwis
- 3 steps up
stated by WikidataRichard van Rees
- 4 steps up
stated by WikidataGerard Moll
Below them, within 3 steps, the record reaches 89 people: 89 stated by Wikidata.
Education and career3
From Wikidata, shown separately from the thesis records. Each place opens its Wikidata item.
- 1919 to 1921worked
- 1921 to 1921worked
- undatedstudied