| Authorised form of name | Kapteyn; Jacobus Cornelius (1851 - 1922) | 
| Dates | 1851 - 1922 | 
| Place of birth | Barneveld, Netherlands | 
| Date of birth | 19 January 1851 | 
| Place of death | Amsterdam, Netherlands | 
| Date of death | 18/06/1922 | 
| Research field | Astronomy | 
| Membership category | Foreign Member | 
| Date of election | 26/06/1919 | 
| Source | Sources: Bulloch's Roll; DSB
 Obituaries:
 Proc Roy Soc Series A 1922-1923 vol 102 pp xxix-xxxv signed by A S E
 | 
| Virtual International Authority File | http://viaf.org/viaf/30277370 | 
| Code | NA869 | 
Archives associated with this Fellow
| RefNo | Title | Date | 
| EC/1919/18 | Kapteyn, Jacobus Cornelius: certificate of election to the Royal Society |  | 
| MC/34/116 | Letter from [Jacobus Cornelius] Kapteyn, Groningen, to The Royal Society of London | 28 June 1919 | 
| NLB/57/127 | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to Sir Frank Dyson, FRS | 28 July 1919 | 
| NLB/57 | New Letter Book volume 57, copy letters sent from Royal Society administration | 27 June 1919-27 February 1920 |