 | Henri Alexandre Deslandres (24 July 1853 – 15 January 1948) was a French astronomer, director of the Meudon and Paris Observatories, who carried out intensive... 8 KB (596 words) - 10:41, 29 October 2023 |
 | Sun. It was developed independently by George Ellery Hale and Henri-Alexandre Deslandres in the 1890s and further refined in 1932 by Robert R. McMath to... 2 KB (187 words) - 12:49, 8 June 2023 |
 | known since antiquity. Radial velocity measurements taken by Henri-Alexandre Deslandres in 1900 at Paris Observatory showed that Mintaka had a variable... 25 KB (2,153 words) - 18:19, 19 October 2023 |
d'Eyncourt, 1st Baronet Udny Yule Leon Charles Albert Calmette Henri Alexandre Deslandres Albert Einstein Albin Haller Edmund Beecher Wilson Pieter Zeeman... 6 KB (484 words) - 14:42, 6 April 2024 |
 | misunderstanding of an 1893 article by Henri-Alexandre Deslandres where the name facular flames was suggested. In the article, Deslandres also refers to them as plages... 4 KB (387 words) - 00:53, 29 April 2024 |
Delmotte Audrey C. Delsanti Jules Alfred Pierrot Deseilligny Henri-Alexandre Deslandres Audouin Dollfus Jean Dufay Jeanne Dumée Noël Duret Ernest Esclangon... 6 KB (595 words) - 01:50, 21 December 2022 |
Derekas (Hungary, 1977–) Willem de Sitter (Netherlands, 1872–1934) Henri-Alexandre Deslandres (France, 1853–1948) Alexander Nikolaevich Deutsch (Russia, 1900–1986)... 125 KB (5,434 words) - 17:22, 13 April 2024 |
 | based in Dogon territory during a five-week expedition, led by Henri-Alexandre Deslandres, to study the solar eclipse of 16 April 1893. Robert Todd Carroll... 54 KB (7,334 words) - 23:41, 13 April 2024 |
 | invented in 1893 by George Ellery Hale and independently later by Henri Alexandre Deslandres in 1894. 1893 Pinking shears Pinking shears are a type of scissors... 209 KB (25,265 words) - 21:20, 17 April 2024 |
 | (1892–1896) Maurice Loewy (1896–1907) Benjamin Baillaud (1908–1926) Henri-Alexandre Deslandres (1926–1929) Ernest Esclangon (1929–1944) André Danjon (1945–1963)... 29 KB (2,849 words) - 10:21, 12 April 2024 |