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 0.017068147659302s
fmsppl-page-output: 1x 0.011204957962036s
t_/pages/list-of-people: 1x 0.011162042617798s
t_/common/header: 1x 0.0053918361663818s
router_page: 1x 0.0052831172943115s
list-of-people-content: 1x 0.0046610832214355s
t_/blocks/list-of-people: 1x 0.0033500194549561s
t_/blocks/person-card: 2x 0.0030829906463623s
headline: 2x 0.0018701553344727s
qids: 2x 0.0010030269622803s
t_/common/footer: 1x 0.00031685829162598s
t_/common/head: 1x 0.00028705596923828s
head-facts: 1x 0.00026321411132812s
t_/blocks/switcher: 1x 3.0994415283203E-5s
related: 1x 4.0531158447266E-6s
using-qids-cache: 1x 9.5367431640625E-7s
----- END OF DUMP (2026-09-13 09:10:09)  -----