Observations on the Eclipse of the Sun, April 1, 1764http://www.jstor.org/stable/105536
The JovianPlutonian gravitational effecthttp://astronomy.activeboard.com/t42052774/jovian-plutonian-gravitational-effect/Anniversary of The Sky At Night (1 April 2007)
The Veneralia (April 1) was the Ancient Roman festival of Venus Verticordia ("Venus the changer of hearts").http://en.wikipedia.org/wiki/VeneraliaThe 1946 Aleutian Islands earthquake was an earthquake near the Aleutian Islands on April 1, 1946. http://en.wikipedia.org/wiki/Aleutian_Island_earthquake
The Montreal Planetarium (formerly the Dow Planetarium) was inaugurated on April 1, 1966 http://en.wikipedia.org/wiki/Montreal_PlanetariumPatna Planetarium was dedicated to the Nation and opened for the public on 1 April 1993.http://en.wikipedia.org/wiki/Patna_PlanetariumStaatliches Bauhaus was founded in 1919http://en.wikipedia.org/wiki/BauhausThe Royal Air Force (RAF) was founded on the 1st April 1918http://en.wikipedia.org/wiki/Royal_Air_Force
The satellite TIROS-1 transmitted the first television picture of Earth from space on the 1st April 1960.http://en.wikipedia.org/wiki/File:TIROS-1-Earth.pngLuna 4 was launched in 1963http://en.wikipedia.org/wiki/Luna_4ISIS 2 (1971-024A) was launched at 02:57 UTC on April 1, 1971 http://en.wikipedia.org/wiki/ISIS_(satellite)#ISIS_2
William Frederick Fisher (born April 1, 1946) is an American physician and a former NASA astronauthttp://en.wikipedia.org/wiki/William_Frederick_Fisher
Sergey Aleksandrovich Volkov (born April 1, 1973) is a retired Russian cosmonauthttps://en.wikipedia.org/wiki/Sergey_Volkov_%28cosmonaut%29Marie-Sophie Germain (April 1, 1776 - June 27, 1831) was a French mathematician.http://en.wikipedia.org/wiki/Sophie_Germainhttp://en.wikipedia.org/wiki/List_of_the_72_names_on_the_Eiffel_Tower#Women
Heinrich Valentin Erfle (born 1 April 1884 in Durkheim, died 8 April 1923 in Jena) was a German optician. http://astronomy.activeboard.com/t53303070/heinrich-erfle-1884-1923/George Mitchell Seabroke (1 April 1848 - 1 April 1918) was an English astronomer.http://en.wikipedia.org/wiki/George_Mitchell_Seabroke
Yoshihide Kozai (1 April 1928 - 5 February 2018) was a Japanese astronomer specialising in celestial mechanics.https://en.wikipedia.org/wiki/Yoshihide_KozaiWilliam James Sidis (April 1, 1898 - July 17, 1944) was an American child prodigy with exceptional mathematical and linguistic abilities.http://en.wikipedia.org/wiki/William_James_SidisDavid Humiston Kelley (April 1, 1924 - May 19, 2011) was a Canadian American archaeologist http://en.wikipedia.org/wiki/David_H._Kelley
The Great Egg Race was a BBC television series that ran from 1978 to 1986http://astronomy.activeboard.com/t48531651/the-great-egg-race/Forbidden Planet is a 1956 MGM science fiction film directed by Fred M. Wilcoxhttp://astronomy.activeboard.com/t23068573/forbidden-planet-flying-saucer/Dark Star is a 1974 American comedic science fiction motion picture directed by John Carpenter http://astronomy.activeboard.com/t48531645/dark-star-film/
NGC 2867 was discovered by John Herschel on the 1st April 1834.http://astronomy.activeboard.com/t57183663/ngc-2867/NGC 2923 was discovered by Albert Marth on the 1st April 1864.http://astronomy.activeboard.com/t57183650/ngc-2923/NGC 2928 was discovered by Albert Marth on the 1st April 1864.http://astronomy.activeboard.com/t57183645/ngc-2928/NGC 2933 was discovered by Albert Marth on the 1st April 1864.http://astronomy.activeboard.com/t57183640/ngc-2933/NGC 2941 was discovered by Albert Marth on the 1st April 1864.http://astronomy.activeboard.com/t57183630/ngc-2941/NGC 2943 was discovered by Albert Marth on the 1st April 1864.http://astronomy.activeboard.com/t57183617/ngc-2943/NGC 2946 was discovered by Albert Marth on the 1st April 1864.http://astronomy.activeboard.com/t57183614/ngc-2946/NGC 2949 was discovered by Albert Marth on the 1st April 1864.http://astronomy.activeboard.com/t57183610/ngc-2949/NGC 3247 was discovered by John Herschel on the 1st April 1834.http://astronomy.activeboard.com/t9650201/westerlund-2/NGC 3320 was discovered by William Herschel on the 1st April 1788.http://astronomy.activeboard.com/t57183591/ngc-3320/NGC 3391 was discovered by Albert Marth on the 1st April 1864.http://astronomy.activeboard.com/t57183580/ngc-3391/NGC 3399 was discovered by Albert Marth on the 1st April 1864.http://astronomy.activeboard.com/t57183574/ngc-3399/NGC 3405 was discovered by Albert Marth on the 1st April 1864.http://astronomy.activeboard.com/t57183563/ngc-3405/NGC 3410 was discovered by Lawrence Parsons, 4th Earl of Rosse using on the 1st April 1878.http://astronomy.activeboard.com/t57183559/ngc-3410/NGC 3419 was discovered by Albert Marth on the 1st April 1864.http://astronomy.activeboard.com/t57183547/ngc-3419/NGC 3503 was discovered by John Herschel on the 1st April 1834.http://astronomy.activeboard.com/t57183014/ngc-3503/NGC 3577 was discovered by William Herschel on the 1st April 1788.http://astronomy.activeboard.com/t57183004/ngc-3577/NGC 3699 was discovered by John Herschel on the 1st April 1834.http://astronomy.activeboard.com/t57182994/ngc-3699/NGC 4110 was discovered by William Parsons, 3th Earl of Rosse on the 1st April 1848.http://astronomy.activeboard.com/t57182987/ngc-4110/NGC 4268 was discovered by Eduard Schönfeld on the 1st April 1862.http://astronomy.activeboard.com/t57182976/ngc-4268/NGC 4337 was discovered by John Herschel on the 1st April 1834.http://astronomy.activeboard.com/t57182966/ngc-4337/NGC 4346 was discovered by William Herschel on the 1st April 1788.http://astronomy.activeboard.com/t57182960/ngc-4346/NGC 4800 was discovered by William Herschel on the 1st April 1788.http://astronomy.activeboard.com/t57182951/ngc-4800/NGC 4870 was discovered by Lawrence Parsons, 4th Earl of Rosse on the 1st April 1878.http://astronomy.activeboard.com/t57182931/ngc-4870/NGC 5752 was discovered by Lawrence Parsons, 4th Earl of Rosse on the 1st April 1878.http://astronomy.activeboard.com/t57182919/ngc-5752/NGC 5753 was discovered by Lawrence Parsons, 4th Earl of Rosse on the 1st April 1878.http://astronomy.activeboard.com/t57182895/ngc-5753/NGC 5755 was discovered by Lawrence Parsons, 4th Earl of Rosse on the 1st April 1878.http://astronomy.activeboard.com/t57182872/ngc-5755/
Extrasolar planet WASP-8b was discovered in the SuperWASP batch -6b to -15b on 1 April 2008http://en.wikipedia.org/wiki/WASP-8bExoplanet WASP-12b was discovered on the 1st April 2008http://astronomy.activeboard.com/t16350342/wasp-12b/
Comet Hale-Bopp reached perihelion (0.914 AU) on the 1st April 1997https://en.wikipedia.org/wiki/Comet_Hale%E2%80%93Bopp
Meteorites
The Santa Rosa de Viterbo Meteorite was found in 1810http://astronomy.activeboard.com/t58497608/santa-rosa-de-viterbo-meteorite/An aerolite passed over Southwest Missouri in April, 1876, exploding, finally, a few miles from Washburn. http://astronomy.activeboard.com/t57183232/washburn-aerolite/The Heredia (H5) meteorite fell in Heredia, Costa Rica, on the 1st April, 1857.http://astronomy.activeboard.com/t48531870/heredia-meteorite/The Sharps (H3.4) meteorite fell in Virginia, USA, on the 1st April, 1921.http://astronomy.activeboard.com/t48531875/sharps-meteorite/The Min-Fan-Zhun (LL6) meteorite fell in Jiangsu, China, on the 1st April, 1952.http://astronomy.activeboard.com/t48531882/min-fan-zhun-meteorite/