The Kapteyn letters

Letters of J. C. Kapteyn

The Dutch astronomer J. C. Kapteyn (1851 - 1922) had an active correspondence with two Finnish astronomers, A. Donner and R. Furuhjelm. These letters, archived at the University of Helsinki Observatory, have been digitized in 2002.

See also:
Petra van der Heijden's "The Lost Letters of J. C. Kapteyn" page.

University of Helsinki
Observatory

  Date        Author  1889-12-15  J.C. Kapteyn 1893-06-25  J.C. Kapteyn 1893-07-09  J.C. Kapteyn 1893-08-01  J.C. Kapteyn 1893-08-05  J.C. Kapteyn 1893-09-03  J.C. Kapteyn 1893-09-12  J.C. Kapteyn 1893-10-16  J.C. Kapteyn 1894-04-20  J.C. Kapteyn 1895-04-11  J.C. Kapteyn 1895-04-22  J.C. Kapteyn 1896-03-15  J.C. Kapteyn 1896-05-11  J.C. Kapteyn 1896-05-13  J.C. Kapteyn 1896-06-22  J.C. Kapteyn 1896-08-17  J.C. Kapteyn 1896-10-11  J.C. Kapteyn 1897-08-12  J.C. Kapteyn 1897-12-01  J.C. Kapteyn 1898-02-12  J.C. Kapteyn 1899-02-27  J.C. Kapteyn 1899-06-10  J.C. Kapteyn 1899-07-06  J.C. Kapteyn 1900-06-27  J.C. Kapteyn 1900-07-11  J.C. Kapteyn 1901-05-13  J.C. Kapteyn 1901-06-17  J.C. Kapteyn 1903-04-19  J.C. Kapteyn 1903-04-20  J.C. Kapteyn 1903-11-30  J.C. Kapteyn 1904-05-22  J.C. Kapteyn 1904-10-22  J.C. Kapteyn 1905-02-21  J.C. Kapteyn 1905-03-16  J.C. Kapteyn 1905-07-04  J.C. Kapteyn 1906-02-27  J.C. Kapteyn 1907-08-11  J.C. Kapteyn 1907-09-25  J.C. Kapteyn 1907-09-27  J.C. Kapteyn 1908-01-23  J.C. Kapteyn 1908-04-21  J.C. Kapteyn 1908-06-10  J.C. Kapteyn 1908-06-24  J.C. Kapteyn 1908-07-26  J.C. Kapteyn 1908-08-06  J.C. Kapteyn 1908-09-04  J.C. Kapteyn 1908-09-09  J.C. Kapteyn 1909-01-17  J.C. Kapteyn 1909-01-30  J.C. Kapteyn 1909-03-08  J.C. Kapteyn 1909-04-05  J.C. Kapteyn 1909-06-13  J.C. Kapteyn 1909-10-30  J.C. Kapteyn 1910-01-11  J.C. Kapteyn 1910-05-30  J.C. Kapteyn 1911-12-22  J.C. Kapteyn 1911-12-22  J.C. Kapteyn 1912-05-22  J.C. Kapteyn 1912-08-04  J.C. Kapteyn 1912-11-24  J.C. Kapteyn 1912-11-03  J.C. Kapteyn 1913-01-25  J.C. Kapteyn 1913-02-22  J.C. Kapteyn 1913-06-12  J.C. Kapteyn 1915-09-09  J.C. Kapteyn 1916-06-12  J.C. Kapteyn 1916-11-12  J.C. Kapteyn 1919-06-28  J.C. Kapteyn 1919-07-26  J.C. Kapteyn 1919-08-14  J.C. Kapteyn 1919-08-29  J.C. Kapteyn 1919-08-29  J.C. Kapteyn 1919-08-29  J.C. Kapteyn 1919-12-16  J.C. Kapteyn 1920-02-10  J.C. Kapteyn 1920-11-29  J.C. Kapteyn 1921-03-05  J.C. Kapteyn 1921-03-18  J.C. Kapteyn 1921-05-11  J.C. Kapteyn 1921-05-17  J.C. Kapteyn 1921-06-12  J.C. Kapteyn 1922-04-09  J.C. Kapteyn

Letters scanned Letters to A. Donner and R. Furuhjelm --> Recipient From language pages notes A.D. Groningen ger 1 scanned pages: 1 A.D. Groningen ger 2 postcard; scanned pages: 1 2 A.D. Groningen ger 6 scanned pages: 1 2 3 4 5 6 A.D. Groningen ger 2 scanned pages: 1 2 A.D. Groningen ger 5 scanned pages: 1 2 3 4 5 A.D. Groningen ger 2 scanned pages: 1 2 A.D. Groningen ger 2 postcard; scanned pages: 1 2 A.D. Groningen ger 7 scanned pages: 1 2 3 4 5 6 7 A.D. Groningen ger 8 scanned pages: 1 2 3 4 5 6 7 8 A.D. Groningen ger 2 postcard; scanned pages: 1 2 A.D. Groningen ger 11 scanned pages: 1 2 3 4 5 6 7 8 9 10 11 A.D. Groningen ger 8 scanned pages: 1 2 3 4 5 6 7 8 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 2 postcard; scanned pages: 1 2 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 15 scanned pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 A.D. Groningen ger 8 scanned pages: 1 2 3 4 5 6 7 8 A.D. Borkum ger 8 scanned pages: 1 2 3 4 5 6 7 8 A.D. Groningen ger 2 postcard; scanned pages: 1 2 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 11 scanned pages: 1 2 3 4 5 6 7 8 9 10 11 A.D. Groningen ger 3 scanned pages: 1 2 3 A.D. Groningen ger 2 postcard; scanned pages: 1 2 A.D. Kampen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 7 scanned pages: 1 2 3 4 5 6 7 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Amersfoort ger 2 postcard; scanned pages: 1 2 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 5 scanned pages: 1 2 3 4 5 A.D. Groningen ger 3 scanned pages: 1 2 3 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 8 scanned pages: 1 2 3 4 5 6 7 8 A.D. Groningen ger 5 scanned pages: 1 2 3 4 5 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 2 scanned pages: 1 2 A.D. Groningen ger 2 postcard; scanned pages: 1 2 A.D. Groningen ger 1 telegram; scanned pages: 1 R.F. Groningen fre 3 scanned pages: 1 2 3 R.F. Groningen fre 2 postcard; scanned pages: 1 2 A.D. Groningen ger 2 scanned pages: 1 2 A.D. Groningen ger 8 scanned pages: 1 2 3 4 5 6 7 8 A.D. Groningen ger 2 scanned pages: 1 2 A.D. Groningen ger 3 scanned pages: 1 2 3 A.D. Groningen ger 1 postcard; scanned pages: 1 2 A.D. Groningen ger 2 scanned pages: 1 2 3 A.D. Groningen ger 3 scanned pages: 1 2 3 A.D. Groningen ger 3 scanned pages: 1 2 3 A.D. Groningen ger 3 scanned pages: 1 2 3 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 1 scanned pages: 1 A.D. Groningen ger 1 scanned pages: 1 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 5 scanned pages: 1 2 3 4 5 A.D. TSS Noordam ger 7 scanned pages: 1 2 3 4 5 6 7 A.D. Groningen ger 6 scanned pages: 1 2 3 4 5 6 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 1 scanned pages: 1 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 2 scanned pages: 1 2 A.D. Groningen ger 12 scanned pages: 1 2 3 4 5 6 7 8 9 10 11 12 R.F. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 1 postcard; scanned pages: 1 2 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 7+6 scanned pages: 1 2 3 4 5 6 7; English tr.: 1 2 3 4 5 6 R.F. Groningen ger 2 scanned pages: 1 2 R.F. Groningen ger 1 scanned pages: 1 A.D. Groningen ger 4 scanned pages: 1 2 3 4 R.F. Groningen ger 7 scanned pages: 1 2 3 4 5 6 7 A.D. Groningen ger 4 scanned pages: 1 2 3 4 A.D. Groningen ger 3 scanned pages: 1 2 3 R.F. Groningen ger 2 scanned pages: 1 2 R.F. Groningen ger 3 scanned pages: 1 2 A.D. Groningen ger 3 scanned pages: 1 2 3 R.F. Groningen ger 1 scanned pages: 1 R.F. Groningen ger 2 scanned pages: 1 2 A.D. Groningen ger 2 scanned pages: 1 2 A.D. Groningen ger 2 scanned pages: 1 A.D. Groningen ger 1 scanned pages: 1 A.D. Groningen ger 1 scanned pages: 1 A.D. Groningen ger 3 scanned pages: 1 2 3 A.D. Amsterdam ger 2 scanned pages: 1 2 in June 2002 by Paavo Piironen