1818 - 1878
Angelo Secchi (Italian pronunciation: [ˈandʒelo ˈsekki]; 28 June 1818 – 26 February 1878) was an Italian Catholic priest, astronomer from the Italian region of Emilia. He was director of the observatory at the Pontifical Gregorian University (then called the Roman College) for 28 years. Read more on Wikipedia
Since 2007, the English Wikipedia page of Angelo Secchi has received more than 101,123 page views. His biography is available in 37 different languages on Wikipedia. Angelo Secchi is the 90th most popular astronomer (down from 83rd in 2019), the 1,240th most popular biography from Italy (down from 1,159th in 2019) and the 10th most popular Italian Astronomer.
Angelo Secchi was an Italian astronomer who was most famous for developing the Secchi disk, a tool used to measure water clarity.
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Among astronomers, Angelo Secchi ranks 90 out of 531. Before him are Edward Emerson Barnard, Giovanni Battista Riccioli, Abu Maʿshar, Eric Walter Elst, Petrus Apianus, and Eugene Merle Shoemaker. After him are Antony Hewish, Joseph Hooton Taylor Jr., Friedrich Wilhelm Argelander, David Fabricius, Johann Elert Bode, and Nicolas-Claude Fabri de Peiresc.
1857 - 1923
HPI: 60.29
Rank: 84
1598 - 1671
HPI: 60.24
Rank: 85
787 - 886
HPI: 60.20
Rank: 86
1936 - 2022
HPI: 60.15
Rank: 87
1495 - 1552
HPI: 60.13
Rank: 88
1928 - 1997
HPI: 60.10
Rank: 89
1818 - 1878
HPI: 60.06
Rank: 90
1924 - 2021
HPI: 60.00
Rank: 91
1941 - Present
HPI: 59.97
Rank: 92
1799 - 1875
HPI: 59.96
Rank: 93
1564 - 1617
HPI: 59.90
Rank: 94
1747 - 1826
HPI: 59.83
Rank: 95
1580 - 1637
HPI: 59.80
Rank: 96
Among people born in 1818, Angelo Secchi ranks 22. Before him are Charles III, Prince of Monaco, Leconte de Lisle, Sophie of Württemberg, Archduke Karl Ferdinand of Austria, August Wilhelm von Hofmann, and Frederick Douglass. After him are Mary Todd Lincoln, Thomas Mayne Reid, Amalia of Oldenburg, Richard Jordan Gatling, François d'Orléans, Prince of Joinville, and Hermann Kolbe. Among people deceased in 1878, Angelo Secchi ranks 15. Before him are Maria Christina of the Two Sicilies, George V of Hanover, Ernst Heinrich Weber, Mirza Fatali Akhundov, Nikolay Nekrasov, and Elias Magnus Fries. After him are Ōkubo Toshimichi, Antoine César Becquerel, Mercedes of Orléans, Mariam Baouardy, Henri Victor Regnault, and John Russell, 1st Earl Russell.
1818 - 1889
HPI: 62.51
Rank: 16
1818 - 1894
HPI: 62.09
Rank: 17
1818 - 1877
HPI: 61.20
Rank: 18
1818 - 1874
HPI: 61.03
Rank: 19
1818 - 1892
HPI: 60.93
Rank: 20
1818 - 1895
HPI: 60.35
Rank: 21
1818 - 1878
HPI: 60.06
Rank: 22
1818 - 1882
HPI: 59.96
Rank: 23
1818 - 1883
HPI: 59.95
Rank: 24
1818 - 1875
HPI: 59.85
Rank: 25
1818 - 1903
HPI: 59.27
Rank: 26
1818 - 1900
HPI: 59.19
Rank: 27
1818 - 1884
HPI: 59.11
Rank: 28
1806 - 1878
HPI: 63.77
Rank: 9
1819 - 1878
HPI: 63.30
Rank: 10
1795 - 1878
HPI: 61.46
Rank: 11
1812 - 1878
HPI: 61.42
Rank: 12
1821 - 1878
HPI: 60.38
Rank: 13
1794 - 1878
HPI: 60.14
Rank: 14
1818 - 1878
HPI: 60.06
Rank: 15
1830 - 1878
HPI: 59.95
Rank: 16
1788 - 1878
HPI: 59.76
Rank: 17
1860 - 1878
HPI: 59.66
Rank: 18
1846 - 1878
HPI: 59.33
Rank: 19
1810 - 1878
HPI: 59.16
Rank: 20
1792 - 1878
HPI: 58.92
Rank: 21
Among people born in Italy, Angelo Secchi ranks 1,240 out of 4,668. Before him are Radagaisus (400), Liliana Cavani (1933), Lucius Munatius Plancus (-87), Antipope Honorius II (1010), Stefano di Giovanni (1392), and Ascanio Sobrero (1812). After him are Maria Teresa of Savoy (1803), Luigi Einaudi (1874), Giovanni Battista Sammartini (1700), Maria Beatrice of Savoy (1792), Calpurnia (-77), and Maria Theresa of Austria (1767).
400 - 406
HPI: 60.07
Rank: 1,234
1933 - Present
HPI: 60.07
Rank: 1,235
87 BC - 15 BC
HPI: 60.07
Rank: 1,236
1010 - 1072
HPI: 60.06
Rank: 1,237
1392 - 1450
HPI: 60.06
Rank: 1,238
1812 - 1888
HPI: 60.06
Rank: 1,239
1818 - 1878
HPI: 60.06
Rank: 1,240
1803 - 1879
HPI: 60.05
Rank: 1,241
1874 - 1961
HPI: 60.04
Rank: 1,242
1700 - 1775
HPI: 60.02
Rank: 1,243
1792 - 1840
HPI: 60.02
Rank: 1,244
77 BC - Present
HPI: 60.02
Rank: 1,245
1767 - 1827
HPI: 60.01
Rank: 1,246
Among astronomers born in Italy, Angelo Secchi ranks 10. Before him are Giuseppe Piazzi (1746), Paolo dal Pozzo Toscanelli (1397), Giovanni Schiaparelli (1835), Girolamo Fracastoro (1476), Riccardo Giacconi (1931), and Giovanni Battista Riccioli (1598). After him are Annibale de Gasparis (1819), Luigi Ferdinando Marsili (1658), Margherita Hack (1922), Giovanni Domenico Maraldi (1709), Giovanni Battista Donati (1826), and Niccolò Zucchi (1586).
1746 - 1826
HPI: 67.50
Rank: 4
1397 - 1482
HPI: 65.16
Rank: 5
1835 - 1910
HPI: 65.13
Rank: 6
1476 - 1553
HPI: 62.42
Rank: 7
1931 - 2018
HPI: 61.87
Rank: 8
1598 - 1671
HPI: 60.24
Rank: 9
1818 - 1878
HPI: 60.06
Rank: 10
1819 - 1892
HPI: 57.38
Rank: 11
1658 - 1730
HPI: 56.69
Rank: 12
1922 - 2013
HPI: 54.55
Rank: 13
1709 - 1788
HPI: 53.86
Rank: 14
1826 - 1873
HPI: 51.73
Rank: 15
1586 - 1670
HPI: 51.67
Rank: 16