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langs: 18 апреля [ru] / april 18 [en] / 18. april [de] / 18 avril [fr] / 18 aprile [it] / 18 de abril [es]

days: april 15 / april 16 / april 17 / april 18 / april 19 / april 20 / april 21

Asteroid / Asteroid


#1 53311 Deucalion

53311 Deucalion / dj uː ˈ k eɪ l i ə n / , provisional designation 1999 HU 11 , is a trans-Neptunian object from the classical Kuiper belt , with a diameter of approximately 130–210 kilometers (81–130 miles) , located in the outermost region of the Solar System . The cubewano belongs to the cold pop

#2 1824 Haworth

1824 Haworth ( prov. designation : 1952 FM ) is an asteroid from the outer region of the asteroid belt , approximately 14 kilometers in diameter. It was discovered on 30 March 1952, by Indiana University's Indiana Asteroid Program at its Goethe Link Observatory near Brooklyn, Indiana, United States,

#3 1960 Guisan

1960 Guisan , provisional designation 1973 UA , is a carbonaceous asteroid from the middle region of the asteroid belt , approximately 25 kilometers in diameter. Asteroid 1960 Guisan Discovery [1] Discovered   by P. Wild Discovery   site Zimmerwald Obs. Discovery   date 25 October 1973 Designations

#4 1759 Kienle

1759 Kienle , provisional designation 1942 RF , is a stony background asteroid from the central regions of the asteroid belt , approximately 7 kilometers (4.3 miles) in diameter. It was discovered on 11 September 1942, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in sou

#5 98 Ianthe

Ianthe ( minor planet designation : 98 Ianthe ) is a large main-belt asteroid , named for three figures in Greek mythology . It is very dark and is composed of carbonates . It was one of the numerous (for his time—the 19th century) discoveries by C. H. F. Peters , who found it on April 18, 1868, fro

#6 1967 Menzel

1967 Menzel ( prov. designation : A905 VC ) is a stony background asteroid from the inner regions of the asteroid belt , approximately 10 kilometers (6.2 miles) in diameter. It was discovered on 1 November 1905, by German astronomer Max Wolf at Heidelberg Observatory in southern Germany, and later n

#7 11351 Leucus

11351 Leucus / ˈ lj uː k ə s / is a mid-sized Jupiter trojan from the Greek camp , approximately 40 kilometers (25 miles) in diameter. It is a target of the Lucy mission , scheduled for a fly by in April 2028. [8] [11] The assumed D-type asteroid is an exceptionally slow rotator with a rotation peri

#8 (275809) 2001 QY297

(275809) 2001 QY 297 is a trans-Neptunian object from the classical Kuiper belt , located in the outermost region of the Solar System . The binary classical Kuiper belt object belongs to the cold population . [5] (275809) 2001 QY 297 Hubble Space Telescope image of 2001 QY 297 and its satellite, tak

#9 1982 Cline

1982 Cline , provisional designation 1975 VA , is a stony asteroid from the inner regions of the asteroid belt , approximately 8 kilometers in diameter. It was discovered on 4 November 1975, by American astronomer Eleanor Helin at Palomar Observatory in California, and named after Edwin Lee Cline, i

#10 (523692) 2014 EZ51

(523692) 2014 EZ 51 , prov. designation : 2014 EZ 51 , is a large trans-Neptunian object in the scattered disc , approximately 700 kilometres (430 miles) in diameter. It was discovered on 18 April 2010, by the Pan-STARRS 1 survey at Haleakala Observatory , Hawaii, United States. [1] (523692) 2014 EZ

#11 806 Gyldénia

806 Gyldénia , provisional designation 1915 WX , is a carbonaceous asteroid from the outer region of the asteroid belt , approximately 63 kilometers in diameter. It was discovered on 18 April 1915, by German astronomer Max Wolf at Heidelberg Observatory in southern Germany. [12] The discovery observ

#12 2012 HE85

2012 HE 85 is a small, resonant trans-Neptunian object from the Kuiper belt , located in the outermost region of the Solar System , approximately 74 kilometers (46 miles) in diameter. It was first observed by a team of astronomers using one of the Magellan Telescopes in Chile during the New Horizons

#13 1739 Meyermann

1739 Meyermann , provisional designation 1939 PF , is a stony Florian asteroid from the inner regions of the asteroid belt , approximately 7.5 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 15 August 1939. [8] It was later named in memory of

#14 1961 Dufour

1961 Dufour ( prov. designation : 1973 WA ) is a large background asteroid , approximately 50 kilometers (31 miles) in diameter, located in the outer region of the asteroid belt . It was discovered on 19 November 1973, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland, a

#15 (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

#16 1983 Bok

1983 Bok ( prov. designation : 1975 LB ) is a dark background asteroid from the central region of the asteroid belt . It was discovered on 9 June 1975, by American astronomer Elizabeth Roemer at the Catalina Station of the UA 's Steward Observatory in Tucson, Arizona, and named for Bart Bok and Pris

#17 1803 Zwicky

1803 Zwicky , prov. designation : 1967 CA , is a stony Phocaea asteroid and binary system from the inner regions of the asteroid belt , approximately 10 kilometers (6.2 miles) in diameter. It was discovered on 6 February 1967, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switze

#18 1845 Helewalda

1845 Helewalda , provisional designation 1972 UC , is a carbonaceous Eoan asteroid in the outer regions of the asteroid belt , approximately 20 kilometers in diameter. It was discovered by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland, on 30 October 1972. [12] The aster

#19 807 Ceraskia

807 Ceraskia ( prov. designation : A915 HF or 1915 WY ) is an elongated Eos asteroid from the outer regions of the asteroid belt . It was discovered on 18 April 1915, by German astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory in southwest Germany. [1] The S-type asteroid has a rota

#20 9931 Herbhauptman

9931 Herbhauptman , provisional designation 1985 HH , is a stony Nysian asteroid from the inner regions of the asteroid belt , approximately 5 kilometers (3 miles) in diameter. It was discovered on 18 April 1985, by Czech astronomer Antonín Mrkos at the Kleť Observatory in former Czechoslovakia. [1]


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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 16P/Brooks

16P/Brooks , also known as Brooks 2 , is a periodic comet discovered by William Robert Brooks on July 7, 1889, but failed to note any motion. He was able to confirm the discovery the next morning, having seen that the comet had moved north. On August 1, 1889, the famous comet hunter Edward Emerson B

#3 73P/Schwassmann–Wachmann

73P/Schwassmann–Wachmann , also known as Schwassmann–Wachmann 3 , is a periodic comet that has a 5.4 year orbital period and that has been actively disintegrating since 1995. It last came to perihelion (closest approach to the Sun) in March 2017 when fragment 73P-BT was separating from the main frag


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Galaxy / Galaxy


#1 NGC 3267

NGC 3267 is a lenticular galaxy in the constellation Antlia . It is a member of the Antlia Cluster , which lies about 40.7 megaparsecs (132.7   million light-years ) away. [3] It was discovered on April 18, 1835 by the astronomer John Herschel . [6] Lenticular galaxy in the constellation Antlia NGC

#2 NGC 3268

NGC 3268 is an elliptical galaxy in the constellation Antlia . [4] It is a member of the Antlia Cluster , which lies about 40.7 megaparsecs (132.7   million light-years ) away. [5] It was discovered on April 18, 1835 by the astronomer John Herschel . [6] Elliptical galaxy in the constellation Antlia

#3 HFLS3

HFLS3 is the name for a distant galaxy at z = 6.34, originating about 880 million years after the Big Bang . [2] Its discovery was announced on 18 April 2013 as an exceptional starburst galaxy producing nearly 3,000 solar masses of stars a year. [2] It was found using the far-infrared-capable Hersch


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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 Rundetaarn

The Round Tower ( Danish : Rundetårn), formerly Stellaburgis Hafniens , is a 17th-century tower located in central Copenhagen, Denmark, and one of the many architectural projects of Christian IV of Denmark , built as an astronomical observatory . It is most noted for its equestrian staircase , a 7.5

#3 Observatory of Saint-Veran

The Observatory of Saint-Veran ( French : Observatoire de Saint-Véran ) is a French astronomical observatory located on the Pic de Château Renard in the municipality of Saint-Véran in the department of Hautes-Alpes in the French Alpes. At 2,930 meter altitude, it is one of the highest observatories

#4 Purple Mountain Observatory

The Purple Mountain Observatory ( Chinese : 紫金山天文台 ; pinyin : Zǐjīnshān Tiānwéntái ), also known as Zijinshan Astronomical Observatory is an astronomical observatory located on the Purple Mountain in the east of Nanjing . [lower-alpha 1] Observatory Purple Mountain Observatory Purple Mountain Observ

#5 Ralph A. Worley Observatory

Ralph A. Worley Observatory is an astronomical observatory currently under lease to Shreveport-Bossier Astronomical Society. It was built in 1964 by the Shreveport-Bossier Astronomical Society and later donated to the Caddo Parish School System. It is located 8 miles south of Shreveport , Louisiana

#6 San Vittore Observatory

The San Vittore Observatory ( Italian : Osservatorio San Vittore , obs.   code : 522 ) is an astronomical observatory in Bologna , Italy. It has made numerous asteroid discoveries during 1980–2000. [1] Minor planets discovered: 99   [1] see §   List of discovered minor planets Observatory San Vittor

#7 Pluton (complex)

Pluton (1980s – Pluton-M ) is a system of deep space communications and planetary radar in Crimea . It was built in the Deep-Space Communication Center area Eighty-Fifth Radiotechnical Center of Distance Communications with Space Objects; ( Ukrainian : 85 радіотехнічний центр телекомунікації з космі

#8 Manuel Foster Observatory

The Manuel Foster Observatory , originally known as the D. O. Mills Observatory after the philanthropist Darius Ogden Mills , is an astronomical observatory constructed on Cerro San Cristóbal near Santiago, Chile in 1903. It was originally built as an offshoot of the Lick observatory to observe star

#9 Pises Observatory

Pises Observatory is an astronomical observatory at the Parc National des Cévennes in France . It is situated at 1300 m altitude and houses an optical telescope with a charge-coupled device used for asteroid surveys. Minor planets discovered: 41   [1] see §   List of discovered minor planets Observa


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Meteorite / Meteorite


#1 Kepler-62c

Kepler-62c (also known by its Kepler Object of Interest designation KOI-701.05 ) is an approximately Mars -sized exoplanet discovered in orbit around the star Kepler-62 , the second innermost of five discovered by NASA 's Kepler spacecraft around Kepler-62. At the time of discovery it was the second

#2 Kepler-69c

Kepler-69c [3] [5] [6] (also known by its Kepler Object of Interest designation KOI-172.02 ) [2] [7] is a confirmed super-Earth extrasolar planet , likely rocky, orbiting the Sun -like star Kepler-69 , the outermore of two such planets discovered by NASA 's Kepler spacecraft. It is located about 2,4

#3 Kepler-62d

Kepler-62d (also known by its Kepler Object of Interest designation KOI-701.01 ) is the third innermost and the largest exoplanet discovered orbiting the star Kepler-62 , with a size roughly twice the diameter of Earth . It was found using the transit method , in which the dimming that a planet caus

#4 Kepler-62b

Kepler-62b (also known by its Kepler Object of Interest designation KOI-701.02 ) is the innermost and the second smallest discovered exoplanet orbiting the star Kepler-62 , with a diameter roughly 30% larger than Earth . It was found using the transit method , in which the dimming effect that a plan

#5 Kepler-62f

Kepler-62f [1] [2] [4] (also known by its Kepler Object of Interest designation KOI-701.04 ) is a super-Earth exoplanet orbiting within the habitable zone of the star Kepler-62 , the outermost of five such planets discovered around the star by NASA 's Kepler spacecraft . It is located about 990 ligh

#6 Kepler-62e

Kepler-62e (also known by its Kepler Object of Interest designation KOI-701.03 ) is a super-Earth exoplanet (extrasolar planet) discovered orbiting within the habitable zone of Kepler-62 , the second outermost of five such planets discovered by NASA 's Kepler spacecraft . Kepler-62e is located about

#7 Akbarpur (meteorite)

Akbarpur is an H chondrite meteorite that fell to earth on April 18, 1838, in Uttar Pradesh , India . It is notable for being the first Indian meteorite for which an official report accompanied by a legal deposition was filed. [2] Akbarpur Type Chondrite Class Ordinary chondrite Group H4 Country Ind


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Nebula / Nebula


#1 Southern Crab Nebula

The Southern Crab Nebula (or WRAY 16-147 or Hen 2-104 ) is a nebula in the constellation Centaurus . The nebula is several thousand light years from Earth, and its central star is a symbiotic Mira variable - white dwarf pair. It is named for its resemblance to the Crab Nebula , which is in the north


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Planet / Planet


#1 List of extrasolar candidates for liquid water

Extraterrestrial liquid water in the Solar System is likely uncommon, although it has been hypothesized to exist in some of its moons , and to have formerly existed on Mars and Venus. [2] [3] Extrasolar liquid water has not yet been confirmed to exist. The following list contains candidates that mee

#2 List of exoplanet search projects

The following is a list of exoplanet search projects . Parts of this article (those related to the number of exoplanets discovered) need to be updated . ( January 2022 )


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Researcher / Researcher


#1 Odon Godart

Odon Godart (August 21, 1913 – April 18, 1996) was a Belgian astronomer and meteorologist . Belgian astronomer and meteorologist (1913 — 1996) This article is an orphan , as no other articles link to it . Please introduce links to this page from related articles ; try the Find link tool for suggesti

#2 Max Wolf

Maximilian Franz Joseph Cornelius Wolf (21 June 1863 – 3 October 1932) was a German astronomer and a pioneer in the field of astrophotography . He was the chairman of astronomy at the University of Heidelberg and director of the Heidelberg-Königstuhl State Observatory from 1902 until his death in 19

#3 Jacques Vallée

Jacques Fabrice Vallée ( French:   [vale] ; born September 24, 1939) is an Internet pioneer , computer scientist , venture capitalist , author, ufologist and astronomer currently residing in San Francisco , California and Paris , France . Computer scientist, ufologist This article has multiple issue

#4 Eugene Merle Shoemaker

Eugene Merle Shoemaker (April 28, 1928   – July 18, 1997) was an American geologist . He co-discovered Comet Shoemaker–Levy 9 with his wife Carolyn S. Shoemaker and David H. Levy . This comet hit Jupiter in July 1994: the impact was televised around the world. Shoemaker also studied terrestrial crat

#5 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

#6 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

#7 Joseph Helffrich

Joseph Helffrich (12 January 1890 in Mannheim , Baden – 1971) was a German astronomer . German astronomer Asteroids discovered: 13   [1] 697 Galilea February 14, 1910 698 Ernestina March 5, 1910 699 Hela June 5, 1910 700 Auravictrix June 5, 1910 701 Oriola July 12, 1910 702 Alauda July 16, 1910 706

#8 Lenka Kotková

Lenka Kotková ( née Šarounová ; born 26 July 1973) is a Czech astronomer and a discoverer of minor planets . Czech astronomer, asteroid discoverer Lenka Kotková ( née Šarounová) Lenka Kotková at the Ondřejov Observatory Born ( 1973-07-26 ) 26 July 1973 (age   48) Dobřichovice , Czechoslovakia Nation

#9 James William Grant (astronomer)

James William Grant FRSE FRAS , 3rd Laird of Wester Elchies (1788–1865) was a Scottish astronomer and landowner. On 23 July 1844 he was the first person to observe and record the existence of the star Antares B . [1] Scottish astronomer

#10 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

#11 Christoph Scheiner

Christoph Scheiner SJ (25 July 1573 (or 1575) – 18 June 1650) was a Jesuit priest, physicist and astronomer in Ingolstadt . Jesuit priest, physicist and astronomer (1573–1650) Oil on canvas portrait of Christoph Scheiner.

#12 Antonín Mrkos

Antonín Mrkos ( Czech pronunciation: [ˈantoɲiːn ˈmr̩kos] ) (27 January 1918, Střemchoví – 29 May 1996, Prague ) was a Czech astronomer . Czech astronomer Antonín Mrkos Minor planets discovered: 274   [1] see §   List of discovered minor planets

#13 Chriet Titulaer

Chriet Titulaer (May 9, 1943 – April 23, 2017), born in Hout-Blerick , Venlo , Limburg , was a Dutch astronomer, television presenter and popular science and technology writer. He lived in Houten , Utrecht . Chriet Titulaer Born ( 1943-05-09 ) May 9, 1943 Venlo , Netherlands Died 23 April 2017 (2017

#14 Krisztián Sárneczky

Krisztián Sárneczky (born 6 November 1974 in Budapest ) is a Hungarian teacher of geography [1] and prolific discoverer of minor planets and supernovae , researching at Konkoly Observatory in Budapest, Hungary. He is a board member of the Hungarian Astronomical Association (HAA) [2] and member of th

#15 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

#16 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

#17 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

#18 Grigory Neujmin

Grigory Nikolayevich Neujmin ( Russian : Григорий Николаевич Неуймин ; 3 January 1886 [ O.S. 22 December 1885 ] – 17 December 1946) was a Georgian– Russian astronomer , native of Tbilisi in Georgia , [2] and a discoverer of numerous minor planets as well as 6 periodic and a hyperbolic comet at the P

#19 Christian Heinrich Friedrich Peters

Christian Heinrich Friedrich Peters (September 19, 1813 – July 18, 1890) was a German–American university teacher and astronomer at the Litchfield Observatory of Hamilton College , New York, and a pioneer in the study and visual discovery of asteroids . His name is often given as C. H. F. Peters . [

#20 Frank B. Zoltowski

Frank B. Zoltowski (born 1957) is an Australian amateur astronomer and prolific discoverer of minor planets who lives in Woomera , South Australia. In 1998, he was awarded a " Gene Shoemaker NEO Grant" for improved near-Earth object searches. [2] [3] Australian astronomer Frank B. Zoltowski Born 195


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Science / Science


#1 Black Hole Initiative

The Black Hole Initiative (BHI) is an interdisciplinary center at Harvard University that includes the fields of Astronomy , Physics and Philosophy , and is claimed to be the first center in the world to focus on the study of black holes . [1] [2] [3] Principal participants include Sheperd S. Doelem


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Star / Star


#1 SN 1993J

SN 1993J is a supernova observed in the galaxy M81 . It was discovered on 28 March 1993 by F. Garcia in Spain . [2] At the time, it was the second-brightest type II supernova observed in the twentieth century behind SN 1987A , [3] peaking at a visible apparent magnitude of 10.7 on March 30th, with a

#2 Kepler-62

Kepler-62 is a K-type main sequence star cooler and smaller than the Sun, located roughly 990 light years from Earth in the constellation Lyra . It resides within the field of vision of the Kepler spacecraft , the satellite that NASA 's Kepler Mission used to detect planets that may be transiting th

#3 Kepler-69

Kepler-69 ( KOI-172 , 2MASS J19330262+4452080 , KIC 8692861 ) is a G-type main-sequence star similar to the Sun in the constellation Cygnus , located about 2,430   ly (750   pc) from Earth . On April 18, 2013 it was announced that the star has two planets. [1] [2] Although initial estimates indicate


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