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langs: 13 апреля [ru] / april 13 [en] / 13. april [de] / 13 avril [fr] / 13 aprile [it] / 13 de abril [es]

days: april 10 / april 11 / april 12 / april 13 / april 14 / april 15 / april 16

Asteroid / Asteroid


#1 598 Octavia

Octavia ( minor planet designation : 598 Octavia ) is a minor planet orbiting the Sun . At 15:45 UTC on October 6, 2014, the 13.5 magnitude asteroid occulted with magnitude 8.1 TYC 1299-00020-1 , and was visible in Taiwan. [3] 598 Octavia Discovery Discovered   by Max Wolf Discovery   site Heidelber

#2 10476 Los Molinos

10476 Los Molinos , provisional designation 1981 EY 38 , is a stony background asteroid and slow rotator from the inner regions of the asteroid belt , approximately 2.9 kilometers (1.8 miles) in diameter. It was discovered on 2 March 1981, by American astronomer Schelte Bus at the Siding Spring Obse

#3 100268 Rosenthal

100268 Rosenthal , provisional designation 1994 TL 16 , is a background asteroid from the inner region of the asteroid belt , approximately 3 kilometers (2 miles) in diameter. It was discovered on 5 October 1994, by German astronomer Freimut Börngen at the Karl Schwarzschild Observatory in Tautenbur

#4 (90568) 2004 GV9

(90568) 2004 GV 9 is a trans-Neptunian object that was discovered on April 13, 2004 by NEAT . [1] It has been listed as a cubewano by the Minor Planet Center . [2] It was discovered on 13 April 2004 by NEAT . It has been observed forty-seven times, with precovery images back to 1954. [4] The object

#5 4608 Wodehouse

4608 Wodehouse , provisional designation 1988 BW 3 , is a background asteroid and suspected trojan of Ceres from the inner regions of the asteroid belt , approximately 8 kilometers in diameter. It was discovered on 19 January 1988, by Belgian astronomer Henri Debehogne at ESO's La Silla Observatory

#6 1605 Milankovitch

1605 Milankovitch , provisional designation 1936 GA , is an Eoan asteroid from the outer region of the asteroid belt , approximately 31 kilometers in diameter. It was named after Serbian scientist Milutin Milanković . 1605 Milankovitch Discovery [1] Discovered   by P. Đurković Discovery   site Uccle

#7 (164207) 2004 GU9

(164207) 2004 GU 9 is a sub-kilometer asteroid , classified as near-Earth object and potentially hazardous asteroid of the Apollo group . It will be a quasi-satellite of Earth until around 2600. [3] Sub-kilometer asteroid and quasi-satellite of Earth (164207) 2004 GU 9 Discovery Discovered   by LINE

#8 (55565) 2002 AW197

(55565) 2002 AW 197 is a classical, non-resonant trans-Neptunian object from the Kuiper belt in the outermost region of the Solar System , also known as a cubewano . With a likely diameter of at least 700 kilometers (430 miles) , it is approximately tied with 2002 MS 4 and 2013 FY 27 (to within meas

#9 4525 Johnbauer

4525 Johnbauer , provisional designation 1982 JB 3 , is dark Mitidika asteroid from the central regions of the asteroid belt , approximately 10 kilometers in diameter. It was discovered on 15 May 1982, by astronomer couple Eleanor and Eugene Shoemaker , as well as Peter Wilder at the Palomar Observa

#10 6312 Robheinlein

6312 Robheinlein ( prov. designation : 1990 RH 4 ) is a bright Augusta or background asteroid from the inner regions of the asteroid belt , that measures approximately 3.5 kilometers (2.2 miles) in diameter. It was discovered on 14 September 1990, by American astronomer Henry Holt at the Palomar Obs

#11 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

#12 2015 GT50

2015 GT 50 , previously known as o5p060 , is a trans-Neptunian object orbiting in the Kuiper belt of the outermost Solar System . It was first observed by the Outer Solar System Origins Survey using the Canada–France–Hawaii Telescope at Mauna Kea on 13 April 2015. Trans-Neptunian object 2015 GT 50 T

#13 (6382) 1988 EL

(6382) 1988 EL , is a stony Hungaria asteroid from the inner regions of the asteroid belt , approximately 5 kilometers in diameter. It was discovered on 14 March 1988, by American astronomer Jeffrey Alu at the U.S. Palomar Observatory , California. [2] (6382) 1988 EL Discovery [1] Discovered   by J.

#14 2018 GE3

2018 GE 3 is a sub-kilometer asteroid on a highly eccentric orbit, classified as a near-Earth object of the Apollo group , approximately 48–110 meters (160–360 feet) in diameter. It was first observed on 14 April 2018, by astronomers with the Catalina Sky Survey one day prior to its sub-lunar close

#15 2021 GW4

2021 GW 4 is an Apollo near-Earth object roughly 5 meters (20 feet) in diameter. It was discovered by the Mount Lemmon Survey on 8 April 2021. [1] On 12 April 2021 13:01 UTC it passed 19 821   km from the surface of Earth. [3] The uncertainty in the close approach distance was ±30 km. [4] Apollo nea

#16 2006 RH120

2006 RH 120 is a tiny near-Earth asteroid [9] and fast rotator with a diameter of approximately 2–3 meters [7] that ordinarily orbits the Sun but makes close approaches to the Earth–Moon system around every twenty years, [10] when it can temporarily enter Earth orbit through temporary satellite capt

#17 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

#18 2007 TU24

2007 TU 24 is an Apollo near-Earth asteroid that was discovered by the Catalina Sky Survey in Arizona on 11 October 2007. Imaging radar has estimated that it is 250 meters (820   ft) in diameter. [3] The asteroid passed 554,209   kilometer (344,370   mile or 1.4- lunar distance ) [5] from Earth on 2

#19 99942 Apophis

99942 Apophis is a near-Earth asteroid and potentially hazardous asteroid with a diameter of 370 metres (1,210 feet) that caused a brief period of concern in December 2004 when initial observations indicated a probability up to 2.7% that it would hit Earth on April   13, 2029. Additional observation


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Book / Book


#1 List of astronomical catalogues

An astronomical catalogue is a list or tabulation of astronomical objects , typically grouped together because they share a common type, morphology, origin, means of detection, or method of discovery. Astronomical catalogs are usually the result of an astronomical survey of some kind. Contents 0–9 A


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Comet / Comet


#1 Comet Bennett

Comet Bennett , formally known as C/1969 Y1 (old style 1970 II and 1969i ), was one of two comets to pass earth in the 1970s, along with Comet West . The name is also borne by an altogether different comet, C/1974 V2 . Discovered by John Caister Bennett on December 28, 1969 while still almost two AU

#2 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

#3 177P/Barnard

Comet 177P/Barnard , also known as Barnard 2 , is a periodic comet with an orbital period of 119 years. It fits the classical definition of a Halley-type comet with (20 years < period < 200 years). [2] 177P/Barnard Discovery Discovered by Edward Emerson Barnard Discovery date June 24, 1889 Alternati


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Galaxy / Galaxy


#1 NGC 4526

NGC 4526 (also listed as NGC 4560 ) is a lenticular galaxy with an embedded dusty disc, located approximately 55 million light-years from the Solar System [3] in the Virgo constellation and discovered on 13 April 1784 by William Herschel . [6] Lenticular galaxy in the constellation Virgo NGC 4526 Su

#2 NGC 4326

NGC 4326 is a barred spiral galaxy with a ring [2] located about 330 million light-years away [3] in the constellation Virgo . It was discovered by astronomer William Herschel on April 13, 1784, [4] who described it as "vF, S, R, bM, 1st of 3". [5] It is a large galaxy, with a diameter of around 200

#3 NGC 4088

NGC 4088 is an intermediate spiral galaxy in the constellation Ursa Major . The galaxy forms a physical pair with NGC 4085 , which is located 11 ′ away. [4] Intermediate spiral Galaxy in the constellation of Ursa Major NGC 4088 NGC 4088 2MASS (near- infrared ) Observation data ( J2000 epoch ) Conste

#4 NGC 4296

NGC 4296 is a barred lenticular galaxy [2] located about 200 million light-years away [3] in the constellation Virgo . It was discovered by astronomer William Herschel on April 13, 1784. [4] It forms a pair with NGC 4297 , [5] and both galaxies are listed as CGCG 042-041, and KPG 331. [6] Barred len

#5 NGC 4570

NGC 4570 is an edge-on lenticular galaxy located about 57 million light-years away [2] in the constellation Virgo . [3] NGC 4570 was discovered by astronomer William Herschel on April 13, 1784 [4] and is a member of the Virgo Cluster . [5] [6] Edge-on lenticular galaxy in the constellation Virgo NGC

#6 NGC 4561

NGC 4561 is a barred spiral galaxy in the constellation Coma Berenices . It was discovered by William Herschel on April 13, 1784. [3] Barred spiral galaxy in the constellation Coma Berenices NGC 4561 Hubble Space Telescope image of NGC 4561 Observation data ( J2000 epoch ) Constellation Coma Berenic

#7 NGC 4261

NGC 4261 is an elliptical galaxy [8] located around 100 million light-years [9] away in the constellation Virgo . It was discovered April 13, 1784 by the German-born astronomer William Herschel . [10] The galaxy is a member of its own somewhat meager [11] galaxy group known as the NGC 4261 group , [

#8 NGC 2835

NGC 2835 is an intermediate spiral galaxy located in the constellation Hydra . It is located at a distance of circa 35 million light years from Earth, which, given its apparent dimensions, means that NGC 2835 is about 65,000 light years across. It was discovered by Wilhelm Tempel on April 13, 1884.

#9 NGC 4260

NGC 4260 is a barred spiral galaxy in the constellation Virgo . It was discovered by William Herschel on April 13, 1784. [3] Barred spiral galaxy in the constellation Virgo NGC 4260 Hubble Space Telescope image of NGC 4260 Observation data ( J2000 epoch ) Constellation Virgo Right ascension 12 h 19

#10 NGC 5907

NGC 5907 (also known as Knife Edge Galaxy or Splinter Galaxy ) is a spiral galaxy located approximately 50 million light years from Earth . [2] It has an anomalously low metallicity and few detectable giant stars , being apparently composed almost entirely of dwarf stars . [3] It is a member of the

#11 NGC 4343

NGC 4343 is an unbarred spiral galaxy [5] in the constellation Virgo . It was discovered by the astronomer William Herschel on April 13, 1784. [6] At a distance of 80 million light-years (25 Mpc), [3] it is located in the Virgo Cluster . [2] It contains an active galactic nucleus . [2] Galaxy NGC 43

#12 NGC 5910

NGC 5910 is an elliptical galaxy [3] [2] [4] located about 540 million light-years away [3] in the constellation Serpens . It was discovered by astronomer William Hershel on April 13, 1785. [4] NGC 5910 is also a strong radio source [5] [6] with a conspicuous nuclear jet. [7] Elliptical galaxy in th

#13 NGC 4297

NGC 4297 is a lenticular galaxy located about 200 million light-years away [2] in the constellation Virgo . It was discovered by astronomer William Herschel on April 13, 1784. [3] It forms an interacting pair with NGC 4296 . [4] [5] Lenticular galaxy in the constellation Virgo NGC 4297 SDSS image of

#14 NGC 4365

NGC 4365 is an elliptical galaxy [5] located in the constellation Virgo . It was discovered by William Herschel on April 13, 1784. [6] [7] [8] Elliptical galaxy in the constellation Virgo NGC 4365 Hubble Space Telescope image of NGC 4365 Observation data (J2000 epoch ) Constellation Virgo Right asce

#15 NGC 4302

NGC 4302 is an edge-on spiral galaxy [3] located about 55 million light-years away [3] [4] in the constellation Coma Berenices . It was discovered by astronomer William Herschel on April 8, 1784 [5] and is a member of the Virgo Cluster . [4] [6] [7] Edge-on spiral galaxy in the constellation Coma Be

#16 NGC 3883

NGC 3883 is a large [3] low surface brightness [4] [5] spiral galaxy located about 330 million light-years away [6] in the constellation Leo . [7] NGC 3883 has a prominent bulge but does not host an AGN . The galaxy also has flocculent spiral arms in its disk. [5] It was discovered by astronomer Wil

#17 NGC 4623

NGC 4623 is an edge-on lenticular or elliptical galaxy [2] [3] located about 54 million light-years away [2] in the constellation of Virgo . [4] NGC 4623 is classified as an E7, a rare type of "late" elliptical that represents the first stage of transition into a lenticular galaxy . [3] NGC 4623 was

#18 NGC 4333

NGC 4333 is a barred spiral galaxy with a ring structure [2] located about 330 million light-years away [3] in the constellation Virgo . It was discovered by astronomer William Herschel on April 13, 1784, [4] who described it as "F, pS, R, bM, 2nd of 3". [5] NGC 4333 is also classified as a LINER ga


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Institution / Institution


#1 Camille Flammarion Observatory

The observatory was established in Juvisy-sur-Orge in 1883 by the French astronomer and author Camille Flammarion . In March 2010, the structure was classified as a historical monument by the French Ministry of Culture . The observatory belongs to the Société astronomique de France . Observatory Cam

#2 Astronomical Observatory of Mallorca

The Astronomical Observatory of Mallorca ( Spanish : Observatorio Astronómico de Mallorca , OAM ) is an observatory just south of Costitx , Mallorca , Spain . [3] Observatory Astronomical Observatory of Mallorca Alternative   names ca Observatory   code 620   Location Costitx , Mallorca , Spain Coor

#3 Los Molinos Observatory

Los Molinos Observatory ( Spanish : Observatorio Astronómico Los Molinos , OALM ; obs.   code : 844 ) is an astronomical observatory owned by the Ministerio de Educación y Cultura de Uruguay and operated in collaboration with the University of the Republic 's Astronomy Department. It is located near

#4 McCormick Observatory

The Leander McCormick Observatory is one of the astronomical observatories operated by the Department of Astronomy [3] of the University of Virginia , and is situated just outside Charlottesville, Virginia (US) in Albemarle County on the summit of Mount Jefferson (also known as Observatory Hill). It

#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 Mason Gully (meteorite)

Mason Gully is an ordinary chondrite [3] [2] of subclass H5 , [3] [2] [4] and is the second meteorite to be recovered using the Desert Fireball Network (DFN) camera observatory . [2] [1] [5] [6] One stone weighing 24.5g was observed to fall by the Desert Fireball Network observatory in Western Austr

#2 WASP-24b

WASP-24b is a Hot Jupiter detected in the orbit of the F-type star WASP-24 . The planet is approximately the same size and mass of Jupiter, but it orbits at approximately 4% of the mean distance between the Earth and the Sun every two days. WASP-24b was observed by SuperWASP starting in 2008; after


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Researcher / Researcher


#1 Jeremiah P. Ostriker

Jeremiah Paul "Jerry" Ostriker (born April 13, 1937) is an American astrophysicist and a professor of astronomy at Columbia University [3] [4] and is the Charles A. Young Professor Emeritus at Princeton where he also continues as a Senior Research Scholar. [5] Ostriker has also served as a universit

#2 Jean Jacques Raimond Jr.

Jean Jacques Raimond Jr. (13 April 1903, in The Hague – 3 December 1961) [1] was a Dutch astronomer . Raimond was the son of Jean Jacques Raimond Sr., furniture maker in The Hague, and Tetje van der Werf. He studied astronomy at the universities of Leiden and Groningen . He obtained his PhD at the l

#3 Kin Endate

Kin Endate ( 円館 金 , Endate Kin , born December 15, 1960) is a Japanese amateur astronomer who has discovered hundreds of asteroids, most of them in collaboration with Kazuro Watanabe , placing him among the most prolific discoverers of minor planets . [1] Minor planets discovered: 624   [1] see §  

#4 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

#5 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

#6 Alexander F. I. Forbes

Alexander Forbes Irvine Forbes (13 April 1871 – 15 May 1959) was a South African astronomer , architect and artist , best known for his discovery of periodic comets. (1871- 1959) South African astronomer, architect and artist Not to be confused with Alexander Forbes Irvine . Alexander Forbes Irvine

#7 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

#8 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

#9 Petar Đurković

Petar Đurković (Петар Ђурковић, 1908–1981) was a Serbian astronomer known for discovering two asteroids in 1936 and 1940, respectively. [1] One is named for the Serbian scientist Milutin Milanković , [2] the other for Zvezdara , the hill in Belgrade where the Belgrade Astronomical Observatory is loc

#10 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

#11 Jacques Blamont

Jacques Émile Blamont ( [ʒak bla.mɔ̃] ; 13 October 1926   – 13 April 2020) was a French astrophysicist , [1] [2] author and the founder scientific and technical director of National Centre for Space Studies (CNES-Centre national d'études spatiales), known to have contributed to the development of Ve

#12 Duncan Steel

Duncan I. Steel is a British space scientist . [1] He has discovered several minor planets and has written four popular science books. He is a member of the International Astronomical Union , which lists him as working at the Xerra Earth Observation Institute in Nelson , in the South Island of New Z

#13 Megan Schwamb

Megan E. Schwamb (born 1984) is an American astronomer and planetary scientist , and lecturer at Queen's University, Belfast . Schwamb has discovered and co-discovered several trans-Neptunian objects , and is involved with Citizen science projects such as Planet Four and Planet Hunters . American pl

#14 Kelsi Singer

Kelsi N. Singer (born 1984), Ph.D., is an American planetary scientist and senior research scientist at the Southwest Research Institute (SwRI) in Boulder, CO . She is a co-investigator and deputy project scientist of NASA's New Horizons mission studying the geomorphology and geophysics of the Pluto

#15 Michele Bannister

Michele Bannister (born 1986) is a New Zealand planetary astronomer and science communicator at the University of Canterbury , who has participated in surveying the outermost Solar System for trans-Neptunian objects . [1] New Zealand astrophysicist, science communicator Michele Bannister Born 1986 (

#16 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

#17 Annie Jump Cannon

Annie Jump Cannon ( / ˈ k æ n ə n / ; December 11, 1863 – April 13, 1941) was an American astronomer whose cataloging work was instrumental in the development of contemporary stellar classification . [2] With Edward C. Pickering , she is credited with the creation of the Harvard Classification Schem

#18 Takeshi Urata

Takeshi Urata ( 浦田 武 , Urata Takeshi , 1947 – December 15, 2012) [2] was a Japanese astronomer . He was a prolific discoverer of asteroids , observing at Nihondaira Observatory . Japanese astronomer Minor planets discovered: 642   [1] see §   List of discovered minor planets In 1978 he became the fi

#19 Yoshisada Shimizu

Yoshisada Shimizu ( 清水 義定 , Shimizu Yoshisada , born 1943) is a Japanese amateur astronomer and a prolific discoverer of hundreds of asteroids since 1993. An orthopaedist by profession, he is also known as an astrophotographer . [1] [2] Japanese astronomer Minor planets discovered: 311   [1] see §  

#20 Samuel Molyneux

Samuel Molyneux FRS (16 July 1689 – 13 April 1728) was an amateur astronomer and politician who sat in the British House of Commons between 1715 and 1728 and in the Irish House of Commons from 1727 to 1728. His work with James Bradley attempting to measure stellar parallax led to the discovery of th


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Star / Star


#1 SN 1998aq

SN 1998aq is a nearby supernova located in the intermediate spiral galaxy NGC 3982 , offset 18 ″ west and 7″ of the galactic nucleus. It was discovered April 13, 1998 by amateur astronomer Mark Armstrong [2] and was confirmed by fellow British amateur Ron Arbour; both members of the U.K. Supernova/N

#2 Antares

Antares is the brightest star in the constellation of Scorpius . It has the Bayer designation α Scorpii , which is Latinised to Alpha Scorpii . Often referred to as "the heart of the scorpion", Antares is flanked by σ Scorpii and τ Scorpii near the center of the constellation. Distinctly reddish whe

#3 CFBDSIR J145829+101343

CFBDSIR J145829+101343 (designation abbreviated to CFBDSIR 1458+10 , or CFBDSIR J1458+1013 ) is a binary system of two brown dwarfs of spectral classes T9 + Y0 orbiting each other, [1] located in constellation Boötes about 104 light-years away from Earth . [3] CFBDSIR J145829+101343 CFBDSIR 1458+10

#4 V500 Aquilae

V500 Aquilae also known as Nova Aquilae 1943 was a nova which appeared in the constellation Aquila , very near the star Altair , in 1943. It was discovered by Cuno Hoffmeister on photographic plates taken at Sonneberg Observatory on 5 September 1943, when it had a photographic magnitude of 12. [4] I

#5 T Pyxidis

T Pyxidis ( T Pyx ) [4] is a recurrent nova [5] and nova remnant in the constellation Pyxis . It is a binary star system and its distance is estimated at about 4,783 parsecs (15,600 light-years) from Earth . It contains a Sun-like star and a white dwarf . Because of their close proximity and the lar


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