List of Famous people with last name Kapteyn

Henry Kapteyn

First Name Henry

Last Name Kapteyn

Born on January 1, 1963 (age 63)

Know him/her

Don't know him/her

Jacobus Kapteyn

First Name Jacobus

Last Name Kapteyn

Died on June 18, 1922

Prof Jacobus Cornelius Kapteyn FRS FRSE LLD was a Dutch astronomer. He carried out extensive studies of the Milky Way and was the discoverer of evidence for galactic rotation. Kapteyn was also among the first to suggest the existence of dark matter using stellar velocities as early as 1922.

Know him/her

Don't know him/her

    index: 1x 0.015336990356445s
fmsppl-page-output: 1x 0.010300159454346s
t_/pages/list-of-people: 1x 0.010252952575684s
t_/common/header: 1x 0.005112886428833s
router_page: 1x 0.0045650005340576s
list-of-people-content: 1x 0.0038280487060547s
t_/blocks/list-of-people: 1x 0.0030009746551514s
t_/blocks/person-card: 2x 0.0027918815612793s
headline: 2x 0.0019009113311768s
qids: 2x 0.0013630390167236s
t_/common/head: 1x 0.00028491020202637s
t_/common/footer: 1x 0.00026583671569824s
head-facts: 1x 0.00026297569274902s
t_/blocks/switcher: 1x 3.0994415283203E-5s
related: 1x 5.0067901611328E-6s
using-qids-cache: 1x 0s
----- END OF DUMP (2026-10-23 23:37:10)  -----