ASTRONOMER
Kees de Jager
1921 - 2021
Kees de Jager
Cornelis "Kees" de Jager (pronounced [ˈkeːz də ˈjaːɣər]; 29 April 1921 – 27 May 2021) was a Dutch astronomer who specialized in predicting solar variation to assess the Sun's impact on future climate. He was the General Secretary of the IAU from 1967 to 1973 and former director of the observatory at Utrecht. Read more on Wikipedia
Since 2007, the English Wikipedia page of Kees de Jager has received more than 31,289 page views. His biography is available in 17 different languages on Wikipedia (up from 16 in 2019). Kees de Jager is the 447th most popular astronomer (down from 355th in 2019), the 764th most popular biography from Netherlands (down from 591st in 2019) and the 20th most popular Dutch Astronomer.
Memorability Metrics
31k
Page Views (PV)
47.74
Historical Popularity Index (HPI)
17
Languages Editions (L)
5.43
Effective Languages (L*)
1.73
Coefficient of Variation (CV)
Among ASTRONOMERS
Among astronomers, Kees de Jager ranks 447 out of 644. Before him are Warren De la Rue, Brian Schmidt, Johann Friedrich Julius Schmidt, Zinaida Aksentyeva, Henry L. Giclas, and Willem Jacob Luyten. After him are Edward Pigott, Horace W. Babcock, Fyodor Bredikhin, Benjamin Banneker, Charles W. Juels, and Frank Schlesinger.
Most Popular Astronomers in Wikipedia
Go to all RankingsWarren De la Rue
1815 - 1889
HPI: 47.94
Rank: 441
Brian Schmidt
1967 - Present
HPI: 47.94
Rank: 442
Johann Friedrich Julius Schmidt
1825 - 1884
HPI: 47.89
Rank: 443
Zinaida Aksentyeva
1900 - 1969
HPI: 47.88
Rank: 444
Henry L. Giclas
1910 - 2007
HPI: 47.86
Rank: 445
Willem Jacob Luyten
1899 - 1994
HPI: 47.77
Rank: 446
Kees de Jager
1921 - 2021
HPI: 47.74
Rank: 447
Edward Pigott
1753 - 1825
HPI: 47.73
Rank: 448
Horace W. Babcock
1912 - 2003
HPI: 47.70
Rank: 449
Fyodor Bredikhin
1831 - 1904
HPI: 47.70
Rank: 450
Benjamin Banneker
1731 - 1806
HPI: 47.65
Rank: 451
Charles W. Juels
1944 - 2009
HPI: 47.65
Rank: 452
Frank Schlesinger
1871 - 1943
HPI: 47.61
Rank: 453
Contemporaries
Among people born in 1921, Kees de Jager ranks 315. Before him are Isabella Bashmakova, George Nader, Ferenc Karinthy, Ottavio Missoni, Alan Freed, and Sahir Ludhianvi. After him are Jeanne Demessieux, Tafari Benti, Antonino Rocca, Ilka Gedő, Mikayil Abdullayev, and Egon Jönsson. Among people deceased in 2021, Kees de Jager ranks 391. Before him are Ramsey Clark, Lothar Metz, Francesco Morini, Vera Nikolić, Mauro Bellugi, and István Csom. After him are Fausta Morganti, Lee Wan-koo, Modibo Keita, Curtis Fuller, Shlomo Hillel, and Darlene Hard.
Others Born in 1921
Go to all RankingsIsabella Bashmakova
HISTORIAN
1921 - 2005
HPI: 47.89
Rank: 309
George Nader
ACTOR
1921 - 2002
HPI: 47.86
Rank: 310
Ferenc Karinthy
WRITER
1921 - 1992
HPI: 47.82
Rank: 311
Ottavio Missoni
ATHLETE
1921 - 2013
HPI: 47.80
Rank: 312
Alan Freed
DESIGNER
1921 - 1965
HPI: 47.78
Rank: 313
Sahir Ludhianvi
WRITER
1921 - 1980
HPI: 47.74
Rank: 314
Kees de Jager
ASTRONOMER
1921 - 2021
HPI: 47.74
Rank: 315
Jeanne Demessieux
COMPOSER
1921 - 1968
HPI: 47.73
Rank: 316
Tafari Benti
POLITICIAN
1921 - 1977
HPI: 47.71
Rank: 317
Antonino Rocca
WRESTLER
1921 - 1977
HPI: 47.47
Rank: 318
Ilka Gedő
PAINTER
1921 - 1985
HPI: 47.33
Rank: 319
Mikayil Abdullayev
PAINTER
1921 - 2002
HPI: 47.31
Rank: 320
Egon Jönsson
SOCCER PLAYER
1921 - 2000
HPI: 47.27
Rank: 321
Others Deceased in 2021
Go to all RankingsRamsey Clark
POLITICIAN
1927 - 2021
HPI: 47.96
Rank: 385
Lothar Metz
POLITICIAN
1939 - 2021
HPI: 47.93
Rank: 386
Francesco Morini
SOCCER PLAYER
1944 - 2021
HPI: 47.88
Rank: 387
Vera Nikolić
ATHLETE
1948 - 2021
HPI: 47.88
Rank: 388
Mauro Bellugi
SOCCER PLAYER
1950 - 2021
HPI: 47.81
Rank: 389
István Csom
CHESS PLAYER
1940 - 2021
HPI: 47.76
Rank: 390
Kees de Jager
ASTRONOMER
1921 - 2021
HPI: 47.74
Rank: 391
Fausta Morganti
POLITICIAN
1944 - 2021
HPI: 47.71
Rank: 392
Lee Wan-koo
POLITICIAN
1950 - 2021
HPI: 47.71
Rank: 393
Modibo Keita
POLITICIAN
1942 - 2021
HPI: 47.71
Rank: 394
Curtis Fuller
MUSICIAN
1934 - 2021
HPI: 47.69
Rank: 395
Shlomo Hillel
POLITICIAN
1923 - 2021
HPI: 47.67
Rank: 396
Darlene Hard
TENNIS PLAYER
1936 - 2021
HPI: 47.64
Rank: 397
In Netherlands
Among people born in Netherlands, Kees de Jager ranks 764 out of 1,646. Before him are Andries Jonker (1962), Greetje Kauffeld (1939), Thomas van Erpe (1584), Willem Piso (1611), Willem Bilderdijk (1756), and Simone Simons (1985). After him are Johan Boskamp (1948), Hans van Mierlo (1931), Fred Rutten (1962), Eddy Pieters Graafland (1934), Pieter Cort van der Linden (1846), and Frans van der Lugt (1938).
Others born in Netherlands
Go to all RankingsAndries Jonker
SOCCER PLAYER
1962 - Present
HPI: 47.91
Rank: 758
Greetje Kauffeld
SINGER
1939 - Present
HPI: 47.90
Rank: 759
Thomas van Erpe
PHILOSOPHER
1584 - 1624
HPI: 47.87
Rank: 760
Willem Piso
PHYSICIAN
1611 - 1678
HPI: 47.86
Rank: 761
Willem Bilderdijk
WRITER
1756 - 1831
HPI: 47.80
Rank: 762
Simone Simons
SINGER
1985 - Present
HPI: 47.76
Rank: 763
Kees de Jager
ASTRONOMER
1921 - 2021
HPI: 47.74
Rank: 764
Johan Boskamp
SOCCER PLAYER
1948 - Present
HPI: 47.71
Rank: 765
Hans van Mierlo
POLITICIAN
1931 - 2010
HPI: 47.70
Rank: 766
Fred Rutten
SOCCER PLAYER
1962 - Present
HPI: 47.59
Rank: 767
Eddy Pieters Graafland
SOCCER PLAYER
1934 - 2020
HPI: 47.56
Rank: 768
Pieter Cort van der Linden
POLITICIAN
1846 - 1935
HPI: 47.56
Rank: 769
Frans van der Lugt
RELIGIOUS FIGURE
1938 - 2014
HPI: 47.51
Rank: 770
Among ASTRONOMERS In Netherlands
Among astronomers born in Netherlands, Kees de Jager ranks 20. Before him are Eise Eisinga (1744), Adriaan van Maanen (1884), Bart Bok (1906), Dirk Brouwer (1902), Hendrik van Gent (1900), and Frederik Kaiser (1808). After him are Ewine van Dishoeck (1955).
Eise Eisinga
1744 - 1828
HPI: 51.21
Rank: 14
Adriaan van Maanen
1884 - 1946
HPI: 50.78
Rank: 15
Bart Bok
1906 - 1983
HPI: 50.30
Rank: 16
Dirk Brouwer
1902 - 1966
HPI: 49.97
Rank: 17
Hendrik van Gent
1900 - 1947
HPI: 49.02
Rank: 18
Frederik Kaiser
1808 - 1872
HPI: 48.30
Rank: 19
Kees de Jager
1921 - 2021
HPI: 47.74
Rank: 20
Ewine van Dishoeck
1955 - Present
HPI: 43.24
Rank: 21