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langs: 6 апреля [ru] / april 6 [en] / 6. april [de] / 6 avril [fr] / 6 aprile [it] / 6 de abril [es]

days: april 3 / april 4 / april 5 / april 6 / april 7 / april 8 / april 9

Asteroid / Asteroid


#1 25 Phocaea

Phocaea / f oʊ ˈ s iː ə / ( minor planet designation : 25 Phocaea ) is a stony asteroid from the inner regions of the asteroid belt , approximately 75 kilometers in diameter. It is the parent body of the Phocaea family . Discovered by Jean Chacornac in 1853, it was named after the ancient Greek city

#2 824 Anastasia

824 Anastasia is a main belt asteroid orbiting the Sun . It is approximately 34.14   km in diameter. [2] It was discovered on March 25, 1916, by Grigory Neujmin at Simeiz Observatory in Russian Empire . [2] [3] It is named in memory of Anastasia Semenoff, an acquaintance of the discoverer. [4] 824 A

#3 3122 Florence

3122 Florence is a stony [10] trinary [20] asteroid of the Amor group. It is classified as a near-Earth object and potentially hazardous asteroid . It measures approximately 5 kilometers in diameter . It orbits the Sun at a distance of 1.0–2.5   AU once every 2 years and 4 months (859 days); the orb

#4 (323137) 2003 BM80

(323137) 2003 BM 80 , provisional designation : 2003 BM 80 and cometary designation 282P/ 2003 BM 80 , is an asteroid and main-belt comet from the outer regions of the asteroid belt , approximately 9.4 kilometers (5.8 miles) in diameter. It was discovered on 31 January 2003, by astronomers of the LO

#5 977 Philippa

977 Philippa ( prov. designation : A922 GA or 1922 LV ) is a large background asteroid from the outer regions of the asteroid belt , approximately 65 kilometers (40 miles) in diameter. It was discovered on 6 April 1922, by Russian–French astronomer Benjamin Jekhowsky at the Algiers Observatory in No

#6 (523671) 2013 FZ27

(523671) 2013 FZ 27 , provisional designation 2013 FZ 27 , is a trans-Neptunian object located in the Kuiper belt in the outermost region of the Solar System , approximately 570 kilometers (350 miles) in diameter. It was discovered on 16 March 2013, by American astronomers Scott Sheppard and Chad Tr

#7 2013 SY99

2013 SY 99 , also known by its OSSOS survey designation uo3L91 , is a trans-Neptunian object discovered on September 29, 2013 by the Outer Solar System Origins Survey using the Canada–France–Hawaii Telescope at Mauna Kea Observatory . This object orbits the Sun between 50 and 1,300   AU (7.5 and 190

#8 31641 Cevasco

31641 Cevasco , provisional designation 1999 GW 34 , is a stony Nysian asteroid from the inner regions of the asteroid belt , approximately 3.3 kilometers in diameter. It was discovered on 6 April 1999, by the Lincoln Near-Earth Asteroid Research project at Lincoln Laboratory's Experimental Test Sit

#9 857 Glasenappia

857 Glasenappia is a minor planet orbiting the Sun . It was named after Russian astronomer Sergey Glazenap , who was often referred to as "S. de Glasenapp" in pre- Revolution publications. 857 Glasenappia A three-dimensional model of 857 Glasenappia based on its light curve Discovery Discovered   by

#10 5208 Royer

5208 Royer ( prov. designation : 1989 CH 1 ) is a stony Marian asteroid from the central regions of the asteroid belt , approximately 8 kilometers (5 miles) in diameter. It was discovered on 6 February 1989, by astronomer Eleanor Helin at the Palomar Observatory . The S-type asteroid has a rotation

#11 8034 Akka

8034 Akka , provisional designation 1992 LR , is a sub-kilometer sized, eccentric asteroid and near-Earth object of the Apollo group , approximately 540 meters in diameter. It was discovered at Palomar Observatory in 1992, and named after Akka from Finnish mythology. 8034 Akka Discovery   [1] Discov

#12 20936 Nemrut Dagi

20936 Nemrut Dagi , provisional designation : 4835 T-1 , is a stony Hungaria asteroid and Mars-grazer from the innermost regions of the asteroid belt , approximately 3.5 kilometers (2.2 miles) in diameter. It was discovered on 13 May 1971, by Dutch astronomer couple Ingrid and Cornelis van Houten at

#13 50719 Elizabethgriffin

50719 Elizabethgriffin , provisional designation 2000 EG 140 , is a stony Maria asteroid and exceptionally slow rotator from the central region of the asteroid belt , approximately 3.3 kilometers (2.1 miles) in diameter. It was discovered on 1 March 2000, by astronomers with the Catalina Sky Survey

#14 19139 Apian

19139 Apian , provisional designation 1989 GJ 8 , is a bright background asteroid from the central regions of the asteroid belt , approximately 6 kilometers in diameter. It was discovered on 6 April 1989, by German astronomer Freimut Börngen at the Karl Schwarzschild Observatory in Tautenburg, Easte

#15 563 Suleika

Suleika ( minor planet designation : 563 Suleika ) is a minor planet orbiting the Sun . Previously designated as 1905 QK , it was discovered by German astronomer Paul Götz on 6 April 1905 from Heidelberg , Germany . [3] 563 Suleika Discovery Discovered   by Paul Götz Discovery   date 6 April 1905 De

#16 2001 GO2

2001 GO 2 is a very small asteroid and near-Earth object of the Apollo group , approximately 50 meters (160 feet) in diameter. Like 2003 YN 107 , it is in a co-orbital configuration relative to Earth moving in a 1:1   mean-motion resonance . It was first observed on 13 April 2001, by astronomers wit

#17 5357 Sekiguchi

5357 Sekiguchi ( prov. designation : 1992 EL ) is an Eos asteroid from the outer region of the asteroid belt , approximately 15 kilometers (9 miles) in diameter. It was discovered on 2 March 1992, by Japanese amateur astronomers Tetsuya Fujii and Kazuro Watanabe at the Kitami Observatory in eastern

#18 2010 GZ60

2010 GZ 60 was originally estimated by JPL to be a near-Earth asteroid approximately 2 kilometers (1.2 miles) in diameter. [4] But is now known to be an asteroid from the inner region of the asteroid belt that does not get closer than 1.5   AU (220   million   km ) to Earth. [2] Asteroid 2010 GZ 60

#19 755 Quintilla

755 Quintilla ( prov. designation : A908 GC or 1908 CZ ) is a metallic background asteroid from the outer regions of the asteroid belt , approximately 36 kilometers (22 miles) in diameter. It was discovered on 6 April 1908, by American astronomer Joel Metcalf at the Taunton Observatory ( 803 ) in Ma

#20 34 Circe

Circe , minor planet designation 34 Circe , is a large, very dark main-belt asteroid . It was discovered by French astronomer J. Chacornac on April 6, 1855, and named after Circe , the bewitching queen of Aeaea island in Greek mythology . Main-belt asteroid 34 Circe A three-dimensional model of 34 C


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Comet / Comet


#1 Halley's Comet

Halley's Comet or Comet Halley , officially designated 1P/Halley , is a short-period comet visible from Earth every 75–79 years. [1] Halley is the only known short-period comet that is regularly visible to the naked eye from Earth, and thus the only naked-eye comet that can appear twice in a human l

#2 300P/Catalina

300P/Catalina is a periodic , near-Earth comet in the Solar System with an orbital period of 4.4 years. It is the second comet ever listed on the Sentry Risk Table . [5] At 1.4 kilometers (0.9 miles) in diameter, [4] it is one of the largest objects ever listed on the Sentry Risk Table. 300P/Catalin

#3 2I/Borisov

2I/Borisov , originally designated C/2019 Q4 (Borisov) , [8] is the first observed rogue comet and the second observed interstellar interloper after ʻOumuamua . [9] [10] It was discovered by the Crimean amateur astronomer and telescope maker Gennadiy Borisov on 29   August 2019 UTC (30   August loca

#4 88P/Howell

88P/Howell is a periodic comet with a 5.5 year orbital period . It was discovered on 29 August 1981. [5] In 1975 the comet's perihelion (closest approach to the Sun) was 1.9 AU , [2] but a close approach to Jupiter in 1978 [1] perturbed the perihelion distance closer to the Sun. During the 2009 appa

#5 105P/Singer Brewster

105P/Singer Brewster is a periodic comet in the Solar System . It was discovered in 1986, and received the name of 1986d under the old naming system. [4] Periodic comet with 6 year orbit 105P/Singer Brewster Discovery Discovered by Stephen Singer-Brewster Discovery date May 3, 1986 Alternative desig

#6 47P/Ashbrook–Jackson

47P/Ashbrook–Jackson is a periodic comet in the Solar System . Periodic comet with 8 year orbit 47P/Ashbrook–Jackson Discovery Discovered by Joseph Ashbrook United States Cyril V. Jackson South Africa Discovery date August 26, 1948 Alternative designations 1948 IX; 1956 II; 1963 VI; 1971 III; 1978 X


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Galaxy / Galaxy


#1 NGC 4725

NGC 4725 is an intermediate barred spiral galaxy with a prominent ring structure, [9] located in the northern constellation of Coma Berenices near the north galactic pole . [10] It was discovered by German-born astronomer William Herschel on April 6, 1785. [11] The galaxy lies at a distance of appro

#2 NGC 5195

NGC 5195 (also known as Messier 51b or M51b ) is a dwarf galaxy that is interacting with the Whirlpool Galaxy (also known as M51a or NGC 5194). Both galaxies are located approximately 25 million light-years away in the constellation Canes Venatici . Together, the two galaxies are one of the most fam

#3 NGC 3902

NGC 3902 is an intermediate spiral galaxy in the constellation Leo . It was discovered on April 6, 1785, by William Herschel and observed on February 19, 1827, by John Herschel . [6] It is estimated to be 180 to 185 million light-years away, and its redshift-independent distance estimates to about 1

#4 NGC 4886

NGC 4886 is an elliptical galaxy located about 327 million light-years away [2] in the constellation Coma Berenices . NGC 4886 was discovered by astronomer Heinrich d'Arrest on April 6, 1864. It was then rediscovered by d'Arrest on April 22, 1865, and was listed as NGC 4882. [3] NGC 4886 is a member

#5 NGC 3393

NGC 3393 is a barred spiral galaxy located in the constellation Hydra . It is located at a distance of circa 180 million light years from Earth, which, given its apparent dimensions, means that NGC 3393 is about 140,000 light years across. It was discovered by John Herschel on March 24, 1835. [2] It


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Institution / Institution


#1 Wise Observatory

The Florence and George Wise Observatory (IAU code 097) is an astronomical observatory owned and operated by Tel Aviv University . It is located 5 kilometers (3.1 miles) west of the town of Mitzpe Ramon in the Negev desert near the edge of the Ramon Crater , and it is the only professional astronomi

#2 Junk Bond Observatory

The Junk Bond Observatory ( JBO ; code: 701 ) is located in the Sonoran Desert at Sierra Vista , Arizona, United States. Astronomical observatory in Cochise County, Arizona This article needs additional citations for verification . ( January 2013 ) Observatory Junk Bond Observatory Alternative   nam

#3 Thirty Meter Telescope

The Thirty Meter Telescope ( TMT ) is a planned extremely large telescope (ELT) [5] [6] that has become controversial due to its location on Mauna Kea , [7] [8] [9] [10] on the island of Hawaiʻi . The TMT would become the largest visible-light telescope on Mauna Kea. [11] [12] Future observatory in

#4 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

#5 European Fireball Network

European Fireball Network is an international organization based in Central Europe ( Germany and Czech Republic ). Its purpose is systematic and simultaneous night observation of meteors and other nebular objects. European Fireball Network A network camera at Daun, Germany . The camera itself is loc

#6 Campo Imperatore Near-Earth Object Survey

The CINEOS program ( Campo Imperatore Near-Earth Object Survey ), started in 2001, is dedicated to the discovery and follow-up of near-Earth objects (NEOs), namely asteroids and comets which periodically approach or intersect the Earth's orbit . In particular CINEOS is addressed to the discovery of

#7 Starlink Project

The Starlink Project , referred to by users as Starlink and by developers as simply The Project , was a UK astronomical computing project which supplied general-purpose data reduction software. Until the late 1990s, it also supplied computing hardware and system administration personnel to UK astron

#8 Sutherland Astronomical Society

Sutherland Astronomical Society Incorporated (SASI) (previously known as the James Cook Astronomers Club) is an amateur astronomical society based in the Sutherland Shire , in the southern suburbs of Sydney , Australia . It operates the Green Point Observatory , it is one of the two founding organiz


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Meteorite / Meteorite


#1 Neuschwanstein (meteorite)

Neuschwanstein was an enstatite chondrite (type EL6) meteorite that fell to Earth on 6 April 2002 at 22:20:18 GMT near Neuschwanstein Castle , Bavaria, at the Germany–Austria border. Meteorite that fell to Earth on 6 April 2002 Neuschwanstein meteorite Neuschwanstein I fragment of the Neuschwanstein


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Planet / Planet


#1 4U 0142+61

4U 0142+61 is a magnetar at an approximate distance of 13 000   light-years from Earth, located in the constellation Cassiopeia . Pulsar in the constellation Cassiopeia This article includes a list of general references , but it lacks sufficient corresponding inline citations . ( May 2017 ) 4U 0142+


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Researcher / Researcher


#1 Giovanni de Sanctis

Giovanni de Sanctis (born 1949) is an Italian astronomer and discoverer of minor planets at the Osservatorio Astronomico di Torino (Astronomical Observatory of Turin) in Turin, Italy . His name is sometimes spelt DeSanctis , particularly in the Minor Planet Circulars . [2] The Minor Planet Center cr

#2 Marie-Charles Damoiseau

Baron Marie-Charles-Théodore de Damoiseau de Montfort (6 April 1768 in Besançon – 6 August 1846) was a French astronomer . French astronomer "Damoiseau" redirects here. For the lunar crater, see Damoiseau (crater) . Damoiseau was originally an artillery officer but he left France in 1792 during the

#3 Jeffrey Owen Katz

Jeffrey Owen Katz (born 1950) is an American scientist best known for his pivotal contribution to the field of factor analysis [1] and his development of innovative AI (artificial intelligence) tools. [2] Born April 6, 1950, he is the only child of Nathan Katz (accountant) and Rosalyn Anker (talent

#4 Marc Postman

Marc Postman (born April 6, 1958) is an American astronomer at the Space Telescope Science Institute [1] in Baltimore , Maryland , United States . His research interests include observational studies of the formation and evolution of galaxies and large scale structure in the universe. His work focus

#5 Kenneth Franklin

Kenneth Linn Franklin (March 25, 1923 – June 18, 2007) was an American astronomer and educator. Franklin was the chief scientist at the Hayden Planetarium from 1956 to 1984 and was co-credited with discovering radio waves originating on Jupiter , the first detection of signals from another planet. [

#6 Kazuro Watanabe

Kazurō Watanabe ( 渡辺 和郎 , Watanabe Kazurō , born May 1, 1955) is a Japanese amateur astronomer and prolific discoverer of minor planets . [2] He was born in Hokkaidō , Japan and is a member of the Astronomical Society of Japan as well as of the Oriental Astronomical Association . Japanese astronomer

#7 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

#8 John Caister Bennett

John Caister "Jack" Bennett (born 6 April 1914 in Estcourt , Natal , died 30 May 1990 in Pretoria ), was a South African civil servant and amateur astronomer. [1] His mother was British and his father was from Tasmania . He attended school in Ficksburg and began to work in public service after gradu

#9 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

#10 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

#11 António Cabreira

D. António Tomás da Guarda Cabreira de Faria e Alvelos Drago da Ponte [lower-alpha 1] ComSE (30 October 1868 – 21 November 1953) was a Portuguese mathematician , polygraph and publicist. A member of the aristocratic Cabreira family, António Cabreira was a claimant to the Miguelist noble titles of Co

#12 Yvan Dutil

Yvan Dutil , born April 6, 1970, is a Canadian astrophysicist . He is a member of the Bioastronomy Commission of the International Astronomical Union and of the International Academy of Astronautics 's Permanent Committee on the Search for Extra-Terrestrial Intelligence (SETI). He and colleague Stép

#13 Fang Lizhi

Fang Lizhi (also Li-Zhi ; February 12, 1936   – April 6, 2012) was a Chinese astrophysicist , vice-president of the University of Science and Technology of China , and activist whose liberal ideas inspired the pro- democracy student movement of 1986–87 and, finally, the Tiananmen Square protests of

#14 Johann Heinrich Hoffmann

Johann Heinrich Hoffmann (1669 in / Thüringen ; April 6, 1716 in Berlin ) was a German astronomer . German astronomer Johann Heinrich Hoffman Born 1669   ( 1669 ) Kerspleben Died 6 April 1716 (1716-04-06) (aged   46–47) Berlin Nationality German Scientific career Fields astronomy

#15 Eric Becklin

Eric E. Becklin (born 6 April 1940) is an American astrophysicist . The primary focus of Becklin's research is infrared imaging and spectroscopy, including the search for brown dwarfs , the detection of circumstellar dust rings, the dynamics and composition of the center of the Milky Way galaxy, and

#16 Michel Ory

Michel Ory (born 18 April 1966) is a Swiss amateur astronomer and a prolific discoverer of minor planets and comets , [1] who was one of five winners of the 2009 Edgar Wilson Award for his discovery of 304P/Ory (P/2008 Q2 Ory), a periodic comet of the Jupiter family on 27 August 2008, [2] using a 24

#17 William Henry Stanley Monck

William Henry Stanley Monck (21 April 1839 – 24 June 1915) was an Irish astronomer and philosopher. After an early education at Kilkenny College, Monck attended Trinity College Dublin . In 1878 he was appointed as Professor of Moral Philosophy and remained in that position until 1892. On 28 August 1

#18 Franck Marchis

Franck Marchis (born April 6, 1973 in Caen , France), astronomer and planetary scientist , is best known for his discovery and characterization of multiple asteroids, his study of Io volcanism and imaging of exoplanets, planets around other stars. American astronomer This article includes a list of

#19 Maimonides

Moses ben Maimon [lower-alpha 1] (1138–1204), commonly known as Maimonides ( / m aɪ ˈ m ɒ n ɪ d iː z / ) [lower-alpha 2] and also referred to by the acronym Rambam ( Hebrew : רמב״ם ), [lower-alpha 3] was a medieval Sephardic Jewish philosopher who became one of the most prolific and influential Tora

#20 Julianne Dalcanton

Julianne Dalcanton (born 1968) is an American astronomer , professor of astronomy, researcher and comet discoverer. [1] Since September 2021 she is the director of the Simons Foundation Center for Computational Astrophysics. [2] American astronomer This article needs additional citations for verific


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Star / Star


#1 SN 1054

SN 1054 is a supernova that was first observed on c.   4 July 1054, and remained visible until c.   6 April 1056. [2] α Supernova in the constellation Taurus; visible from 1054 to 1056 SN 1054 Giant picture mosaic of the Crab Nebula , the remnants of SN 1054, taken by the Hubble Space Telescope in v

#2 HD 10180

HD 10180 , also designated 2MASS J01375356-6030414 , is a Sun-like star in the southern constellation Hydrus that is notable for its large planetary system . Since its discovery, at least six planets , and possibly as many as nine, have been observed orbiting it, making it potentially the largest of


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