New games! PlayTrivia andBirthle.


Angelo Secchi

1818 - 1878

Photo of Angelo Secchi

Icon of person Angelo Secchi

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 85,852 page views. His biography is available in 37 different languages on Wikipedia. Angelo Secchi is the 89th 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.

Memorability Metrics

  • 86k

    Page Views (PV)

  • 60.06

    Historical Popularity Index (HPI)

  • 37

    Languages Editions (L)

  • 9.52

    Effective Languages (L*)

  • 2.40

    Coefficient of Variation (CV)

Page views of Angelo Secchis by language


Among astronomers, Angelo Secchi ranks 89 out of 531Before him are Wilhelm Tempel, Edward Emerson Barnard, Giovanni Battista Riccioli, 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.

Most Popular Astronomers in Wikipedia

Go to all Rankings


Among people born in 1818, Angelo Secchi ranks 22Before 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 15Before 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.

Others Born in 1818

Go to all Rankings

Others Deceased in 1878

Go to all Rankings

In Italy

Among people born in Italy, Angelo Secchi ranks 1,240 out of 4,668Before 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).


Among astronomers born in Italy, Angelo Secchi ranks 10Before 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).