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langs: 9 апреля [ru] / april 9 [en] / 9. april [de] / 9 avril [fr] / 9 aprile [it] / 9 de abril [es]

days: april 6 / april 7 / april 8 / april 9 / april 10 / april 11 / april 12

Asteroid / Asteroid


#1 514107 Kaʻepaokaʻawela

514107 Kaʻepaokaʻāwela ( / k ə ˌ ʔ ɛ p ə . oʊ k ə . ʔ ɑː ˈ v ɛ l ə / ), provisionally designated 2015 BZ 509 and nicknamed Bee-Zed , [9] is a small asteroid , approximately 3   km (2   mi) in diameter, [8] in a resonant, co-orbital motion with Jupiter . [3] It is an unusual minor planet in that its

#2 (52768) 1998 OR2

(52768) 1998 OR 2 ( provisional designation 1998 OR 2 ) is an asteroid on an eccentric orbit , classified as a near-Earth object and potentially hazardous asteroid of the Amor group , with a diameter of 2 kilometers (1.2   mi) . It was discovered on 24 July 1998, by astronomers of the Near-Earth Ast

#3 2019 GC6

2019 GC 6 is a very small near-Earth asteroid and potentially hazardous object of the Apollo group , approximately 20 meters (70   ft) in diameter. It was detected by the Catalina Sky Survey at Catalina Station on 9 April 2019, a few days before it made its first-observed pass through the cislunar r

#4 (307261) 2002 MS4

(307261) 2002 MS 4 is a large classical Kuiper belt object and a possible dwarf planet in the Kuiper belt , a region of icy planetesimals beyond Neptune . [13] It was discovered in 2002 by Chad Trujillo and Michael Brown , and has precovery images back to 8 April 1954. [2] Classical Kuiper belt obje

#5 74503 Madola

74503 Madola , provisional designation 1999 DN 4 , is a background asteroid from the outer region of the asteroid belt , approximately 4.5 kilometers in diameter. It was discovered on 23 February 1999, by Canadian astronomer Denis Bergeron at the Val-des-Bois Observatory in Quebec, Canada. The aster

#6 66 Maja

Maja / ˈ m eɪ ə / ( minor planet designation : 66 Maja ) is a carbonaceous background asteroid from the central regions of the asteroid belt , approximately 71 kilometers in diameter. It was discovered on 9 April 1861, by American astronomer Horace Tuttle at the Harvard College Observatory in Cambri

#7 2010 GA6

2010 GA 6 is a micro- asteroid on an eccentric orbit, classified as a near-Earth object of the Apollo group . It was first observed on 5 April 2010, by astronomers of the Catalina Sky Survey at Mount Lemmon Observatory , Arizona, United States, four days before a close approach to Earth at 1.1 lunar

#8 1180 Rita

1180 Rita , provisional designation 1931 GE , is a dark and spheroidal Hildian asteroid from the outermost regions of the asteroid belt , approximately 97 kilometers in diameter. It was discovered on 9 April 1931, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany.

#9 List of minor planets discovered using the WISE spacecraft

The following is a list of numbered minor planets discovered, co-discovered and re-discovered by the Wide-field Infrared Survey Explorer (WISE), a NASA infrared spaceborne observatory. As of July 2018, the list contains 4093 entries, accredited by the Minor Planet Center as discovered by "WISE". Not

#10 793 Arizona

793 Arizona is a minor planet orbiting the Sun that was discovered April 9, 1907 by American businessman Percival Lowell at Flagstaff . [3] It was named for the state of Arizona . [4] The object was independently discovered on April 17, 1907 by J. H. Metcalf at Taunton . [3] This is a main belt aste

#11 877 Walküre

877 Walküre ( prov. designation : A915 RV or 1915 Σ7 ) is a dark background asteroid from the inner regions of the asteroid belt , approximately 38 kilometers (24 miles) in diameter. It was discovered on 13 September 1915, by Russian astronomer Grigory Neujmin at the Simeiz Observatory on the Crimea

#12 38628 Huya

38628 Huya ( / h uː ˈ j ɑː / hoo- YAH ), provisional designation 2000 EB 173 , is a binary trans-Neptunian object located in the Kuiper belt , a region of icy objects orbiting beyond Neptune in the outer Solar System . Huya is classified as a plutino , a dynamical class of trans-Neptunian objects wi


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Comet / Comet


#1 C/1989 X1 (Austin)

C/1989 X1 (Austin) (old-style designations 1990 V and 1989c1) was a comet discovered by New Zealand amateur Rodney R. D. Austin on December 6, 1989. The comet at discovery was predicted to become easily visible by naked eye in spring 1990, however it failed to become that bright. C/1989 X1 (Austin)

#2 79P/du Toit–Hartley

79P/du Toit–Hartley or du Toit 2 is a periodic comet , now divided into two parts, in the Solar System with an orbital period of 5.06 years. Periodic comet with 5 year orbit 79P/du Toit–Hartley Discovery Discovered by Daniel du Toit , Boyden Observatory , South Africa and Malcolm Hartley of the UK S

#3 67P/Churyumov–Gerasimenko

67P/Churyumov–Gerasimenko (abbreviated as 67P or 67P/C–G ) is a Jupiter-family comet , [10] originally from the Kuiper belt , [11] with a current orbital period of 6.45 years, [1] a rotation period of approximately 12.4 hours [9] and a maximum velocity of 135,000   km/h (38   km/s; 84,000   mph) . [

#4 Comet Hale–Bopp

Comet Hale–Bopp (formally designated C/1995   O1 ) is a comet that was one of the most widely observed of the 20th century and one of the brightest seen for many decades. Long-period comet "Hale Bopp" redirects here. For the composition by Graham Waterhouse, see Celtic Voices and Hale Bopp . C/1995


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Galaxy / Galaxy


#1 NGC 5003

NGC 5003 is a spiral galaxy in the constellation Canes Venatici . [1] The celestial object was discovered on April 9, 1787, by the German-British astronomer William Herschel . Spiral galaxy in the constellation of Canes Venatici NGC 5003 SDSS image of NGC 5003 Observation data (J2000 epoch ) Constel

#2 NGC 3294

NGC 3294 is a spiral galaxy in the constellation Leo Minor . [5] It was discovered by William Herschel on Mar 17, 1787. [9] It is a member of the Leo II Groups , a series of galaxies and galaxy clusters strung out from the right edge of the Virgo Supercluster . [10] The galaxy is located at a distan

#3 NGC 4665

NGC 4665 , also catalogued as NGC 4624 and NGC 4664 , is a barred lenticular or spiral galaxy located in the constellation Virgo . It is a member of the Virgo II Groups , a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster . [4] It is located at a dis


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Institution / Institution


#1 List of solar eclipses visible from Russia

This list of solar eclipses visible from Russia enumerates the solar eclipses that have been seen and will be seen in Russia . Lists of solar eclipses Geometry of a total solar eclipse (not to scale) Solar eclipses in antiquity Solar eclipses in the Middle Ages Modern history 16th 17th 18th 19th 20t

#2 Kleť Observatory

Kleť Observatory ( Czech : Hvězdárna Kleť ; obs. code : 046 ) is an astronomical observatory in the Czech Republic . It is situated in South Bohemia , south of the summit of Mount Kleť , near the town of České Budějovice . Constructed in 1957, the observatory is at an altitude of 1,070 metres (3,510

#3 MERLIN

The Multi-Element Radio Linked Interferometer Network ( MERLIN ) is an interferometer array of radio telescopes spread across England . The array is run from Jodrell Bank Observatory in Cheshire by the University of Manchester on behalf of Science and Technology Facilities Council (STFC) . [1] [2] [

#4 Dr. Neil Trivett Global Atmosphere Watch Observatory

The Dr. Neil Trivett Global Atmosphere Watch Observatory is an atmospheric baseline station operated by Environment and Climate Change Canada located about 6   km (3.7   mi) south south-west of Alert , Nunavut , on the north-eastern tip of Ellesmere Island , about 800   km (500   mi) south of the ge

#5 Črni Vrh Observatory

The Črni Vrh Observatory ( Slovene : Observatorij Črni Vrh , IAU code : 106 ) is an astronomical observatory located in western Slovenia , close to the settlement of Črni Vrh , near the town of Idrija . The current observatory was built in 1985 and stands at an elevation of 730 metres (2,400   ft) .


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Meteorite / Meteorite


#1 HD 47536 c

HD 47536 c is a candidate extrasolar planet located approximately 396 light-years away in the constellation of Canis Major , orbiting the star HD 47536 . Like HD 47536 b , mass and semimajor axis are not exactly known. The mass can either be 6.98 or 13.61 M J and semimajor axis of 3.72 or 5.20 AU, b


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Researcher / Researcher


#1 Carlos Ulrrico Cesco

Carlos Ulrrico Cesco (died 1987) was an Argentine astronomer . He lived most of his life in San Juan, Argentina. He was a well-known discoverer of minor planets credited by the Minor Planet Center (MPC) with the discovery of 19 numbered minor planets. [1] [2] Argentine astronomer Carlos Ulrrico Cesc

#2 Percival Lowell

Percival Lowell ( / ˈ l oʊ əl / ; March 13, 1855 – November 12, 1916) was an American businessman, author, mathematician, and astronomer who fueled speculation that there were canals on Mars , and furthered theories of a ninth planet within the Solar System . He founded the Lowell Observatory in Fla

#3 Snježana Kordić

Snježana Kordić ( pronounced   [sɲěʒana kôːrditɕ] ( listen ) ; born 29 October 1964) [1] is a Croatian linguist . [3] In addition to her work in syntax , she has written on sociolinguistics . [2] Kordić is known among non-specialists for numerous articles against the puristic and prescriptive langua

#4 Dorrit Hoffleit

Ellen Dorrit Hoffleit (March 12, 1907 – April 9, 2007) [1] was an American senior research astronomer at Yale University . She is most widely known for her work in variable stars, astrometry, spectroscopy, meteors, and the Bright Star Catalog , as well as her mentorship of many young women and gener

#5 Charles-Eugène Delaunay

Charles-Eugène Delaunay (9 April 1816 – 5 August 1872) was a French astronomer and mathematician. His lunar motion studies were important in advancing both the theory of planetary motion and mathematics. [1] French astronomer and mathematician Charles-Eugène Delaunay Charles-Eugène Delaunay Born ( 1

#6 Satoru Otomo

Satoru Otomo ( 大友 哲 , Ōtomo Satoru, 19 December 1957, Mitaka ) is a Japanese dentist, amateur astronomer and a discoverer of minor planets . [2] Minor planets discovered: 148   [1] see §   List of discovered minor planets According to the Minor Planet Center , he is credited with the discovery of 14

#7 William Frederick Denning

William Frederick Denning (25 November 1848 – 9 June 1931) was a British amateur astronomer who achieved considerable success without formal scientific training. [1] [2] [3] He is known for his catalogues of meteor radiants , observations of Jupiter's red spot , and for the discovery of five comets

#8 Jun Chen (astronomer)

Jun Chen is a Chinese American astronomer and discoverer of minor planets . Chinese-American astronomer Minor planets discovered: 10   [1] (15807) 1994 GV 9 April 15, 1994 MPC [A] (15820) 1994 TB October 2, 1994 MPC [A] (15874) 1996 TL 66 October 9, 1996 MPC [A] [B] [C] (15883) 1997 CR 29 February 3

#9 John V. McClusky

John V. McClusky is an American astronomer . He is a prolific discoverer of asteroids . [2] American astronomer Minor planets discovered: 156   [1] see §   List of discovered minor planets

#10 Jean Le Fèvre (astronomer)

Jean Le Fèvre (9 April 1652 – 1706, Paris) was a French astronomer and physicist. [1] He was editor of the Connaissance des Temps [2] and was elected to the French Academy of Sciences based on this work. [3] French astronomer and physicist This article may be expanded with text translated from the c

#11 Paul G. Comba

Paul G. Comba (1926 – April 5, 2017) was an Italian-American computer scientist , an amateur astronomer and a prolific discoverer of minor planets . [2] Paul G. Comba Born 1926   ( 1926 ) Tunisia Died April 4, 2017 (2017-04-04) (aged   90–91) Education Ph.D. Alma   mater University of Turin , Blufft

#12 Marc Buie

Marc William Buie ( / ˈ b uː i / ; born 1958) is an American astronomer and prolific discoverer of minor planets who works at the Southwest Research Institute in Boulder, Colorado in the Space Science Department. [1] Formerly he worked at the Lowell Observatory in Flagstaff, Arizona, and was the Sen

#13 Freimut Börngen

Freimut Börngen ( German: [ˈfʁaɪmuːt ˈbœʁŋən] ; 17 October 1930 – 19 June 2021) was a German astronomer and a prolific discoverer of minor planets . [2] A few sources give his first name wrongly as "Freimuth". The Minor Planet Center credits him as F. Borngen . German astronomer (1930–2021) Minor pl

#14 Ulrika Babiaková

Ulrika Babiaková (3 April 1976 – 3 November 2002) was a Slovak astronomer and discoverer of minor planets from Banská Štiavnica , Slovakia. She is credited by the Minor Planet Center with the discovery and co-discovery of 14 asteroids during 1998–2001. [1] [2] [3] Slovak astronomer Aleksandra Born 3

#15 Daniel du Toit

Daniel Stefanus du Toit (1917-1981) was a South African astronomer . South African astronomer This section needs additional citations for verification . ( December 2018 ) Daniel du Toit Born ( 1917-12-15 ) 15 December 1917 Springfontein, Free State Died 28 September 1981 (1981-09-28) (aged   63) Blo

#16 Leonard Kornoš

Leonard Kornoš (born 1956) is a Slovak astronomer and a prolific discoverer of asteroids . [2] Slovak astronomer Minor planets discovered: 37   [1] see §   List of discovered minor planets

#17 Robert H. McNaught

Robert H. McNaught (born in Scotland in 1956) is a Scottish-Australian astronomer at the Research School of Astronomy and Astrophysics of the Australian National University (ANU). He has collaborated with David J. Asher of the Armagh Observatory . Scottish-Australian astronomer (born 1956) Minor pla

#18 John Broughton

John Broughton (born 1952) [2] is an Australian amateur astronomer and artist. He is among the most prolific discoverers of minor planets worldwide, credited by the Minor Planet Center with more than a thousand discoveries made between 1997 and 2008. [1] His observations are done at Reedy Creek Obse

#19 Alan C. Gilmore

Alan Charles Gilmore (born 1944 in Greymouth , New Zealand ) is a New Zealand astronomer and a discoverer of minor planets and other astronomical objects . [2] [3] New Zealand astronomer For other people of a similar name, see Alan Gilmour (disambiguation) . Asteroids discovered: 42   [1] see §   Li

#20 Stewart Nozette

Stewart David Nozette (born May 20, 1957) is an American planetary scientist, technologist, and consultant who worked for the United States Department of Energy , the United States Department of Defense , DARPA , the United States Naval Research Laboratory , and NASA . [1] He is also a convicted fel


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Star / Star


#1 CT Serpentis

CT Serpentis (also known as Nova Serpentis 1948 ) was a nova that appeared in the constellation Serpens in 1948. It was discovered by Ramze Alexander Bartaya at Abastumani Observatory on 9 April 1946. [5] [6] It is thought to have reached magnitude 6.0, [7] but this is an extrapolation of its light


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