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langs: 21 октября [ru] / october 21 [en] / 21. oktober [de] / 21 octobre [fr] / 21 ottobre [it] / 21 de octubre [es]

days: october 18 / october 19 / october 20 / october 21 / october 22 / october 23 / october 24

Asteroid / Asteroid


#1 23436 Alekfursenko

23436 Alekfursenko , provisional designation 1982 UF 8 , is a carbonaceous Hygiean asteroid from the outer region of the asteroid belt , approximately 8.4 kilometers (5.2 miles) in diameter. It was discovered on 21 October 1982, by Russian–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astr

#2 (202421) 2005 UQ513

(202421) 2005 UQ 513 , also written as 2005 UQ513 , is a cubewano with an absolute magnitude of 3.97. [3] Its spectrum has a weak signature of absorption by water ice. [10] [11] Like Quaoar , it has a very red spectrum, [12] [13] which indicates that its surface probably contains many complex, proce

#3 (455502) 2003 UZ413

(455502) 2003 UZ 413 , also written as 2003 UZ413 , is a trans-Neptunian object (TNO) with an absolute magnitude of 4.38. [5] It is in a 2:3 orbital resonance with Neptune , thus it is classified as a plutino . [3] There are indications it may be dense enough to be a dwarf planet . It was given the

#4 3669 Vertinskij

3669 Vertinskij , provisional designation 1982 UO 7 , is a stony Florian asteroid from the inner regions of the asteroid belt , approximately 6.5 kilometers (4 miles) in diameter. It was discovered on 21 October 1982, by Soviet astronomer Lyudmila Karachkina at the Crimean Astrophysical Observatory

#5 942 Romilda

942 Romilda ( prov. designation : A920 TG or 1920 HW ) is a background asteroid , approximately 36 kilometers (22 miles) in diameter, located in the outer region of the asteroid belt . It was discovered by German astronomer Karl Reinmuth at the Heidelberg Observatory on 11 October 1920. [1] The assu

#6 1508 Kemi

1508 Kemi , provisional designation 1938 UP , is an eccentric, carbonaceous asteroid and one of the largest Mars-crossers , approximately 17 kilometers in diameter. Discovered by Heikki Alikoski at Turku Observatory in 1938, [3] the asteroid was later named after the Finnish town of Kemi and the Kem

#7 1328 Devota

1328 Devota , provisional designation 1925 UA , is a dark background asteroid from the outermost regions of the asteroid belt , approximately 56 kilometers in diameter. It was discovered on 21 October 1925, by Russian–French astronomer Benjamin Jekhowsky at the Algiers Observatory in North Africa. [

#8 751 Faïna

751 Faïna ( prov. designation : A913 HE or 1913 RK ) is a very large background asteroid from the central regions of the asteroid belt , approximately 110 kilometers (68 miles) in diameter. It was discovered on 28 April 1913, by Russian astronomer Grigory Neujmin at the Simeiz Observatory on the Cri

#9 2020 UA

2020 UA is a tiny near-Earth asteroid around 5–12 metres (16–39   ft) across that passed within 46,100   km (28,600   mi) of Earth on 21 October 2020 at 02:00 UT . [5] Near earth asteroid 2020 UA Discovery   [1] [2] Discovered   by Mount Lemmon Survey Discovery   site Mt. Lemmon Obs. Discovery   dat

#10 525 Adelaide

Adelaide ( minor planet designation : 525 Adelaide ) is an S-type asteroid belonging to the Flora family in the Main Belt . It was discovered 21 October 1908 by Joel Hastings Metcalf . 525 Adelaide Discovery Discovered   by Joel Hastings Metcalf Discovery   site Taunton, Massachusetts Discovery   da

#11 2012 TC4

2012 TC 4 is a tumbling micro- asteroid classified as a bright near-Earth object of the Apollo group , approximately 10 meters (30 feet) in diameter. [6] [7] [8] It was first observed by Pan-STARRS at Haleakala Observatory on the Hawaiian island of Maui , in the United States. As of 1 October 2017,

#12 2340 Hathor

2340 Hathor ( / ˈ h æ θ ɔːr , - ər / ), provisional designation 1976 UA , is an eccentric stony asteroid , classified as near-Earth object and potentially hazardous asteroid . It belongs to the Aten group of asteroids and measures approximately 210 meters in diameter. Discovered by Charles Kowal in

#13 13732 Woodall

13732 Woodall , provisional designation 1998 RC 56 , is a stony Vestian asteroid from the inner regions of the asteroid belt , approximately 4 kilometers in diameter. It was discovered on 14 September 1998, by the Lincoln Near-Earth Asteroid Research (LINEAR) team at Lincoln Laboratory's Experimenta

#14 731 Sorga

731 Sorga ( prov. designation : A912 GH or 1912 OQ ) is a highly elongated background asteroid from the outer regions of the asteroid belt , approximately 38 kilometers (24 miles) in diameter. It was discovered on 15 April 1912, by German astronomer Adam Massinger at the Heidelberg-Königstuhl State

#15 Eris (dwarf planet)

Eris ( minor-planet designation 136199 Eris ) is the most massive and second-largest known dwarf planet in the Solar System . It is a trans-Neptunian object (TNO) in the scattered disk and has a high- eccentricity orbit. Eris was discovered in January 2005 by a Palomar Observatory –based team led by

#16 1518 Rovaniemi

1518 Rovaniemi , provisional designation 1938 UA , is a stony Florian asteroid from the inner regions of the asteroid belt , approximately 8 kilometers in diameter. Discovered by Yrjö Väisälä at the Turku Observatory in 1938, the asteroid was later named for the Finnish city of Rovaniemi . 1518 Rova

#17 5316 Filatov

5316 Filatov , provisional designation 1982 UB 7 , is a carbonaceous asteroid and potentially slow rotator from the outer region of the asteroid belt , approximately 30 kilometers in diameter. 5316 Filatov Discovery   [1] Discovered   by L. G. Karachkina Discovery   site Crimean Astrophysical Obs. D

#18 6395 Hilliard

6395 Hilliard , provisional designation 1990 UE 1 , is a stony Nysian asteroid from the inner regions of the asteroid belt , approximately 4.5 kilometers in diameter. 6395 Hilliard Discovery   [1] Discovered   by Y. Kushida O. Muramatsu Discovery   site Yatsugatake Obs. Discovery   date 21 October 1

#19 943 Begonia

943 Begonia / b ɪ ˈ ɡ oʊ n i ə / is a large, carbonaceous background asteroid , approximately 70 kilometers (43 miles) in diameter, from the outer region of the asteroid belt . It was discovered by German astronomer Karl Reinmuth at the Heidelberg Observatory on 20 October 1920 and given the provisi

#20 (42301) 2001 UR163

(42301) 2001 UR 163 , prov. designation : 2001 UR 163 , is a resonant trans-Neptunian object and possible dwarf planet located in the outermost region of the Solar System . The object measures approximately 352 kilometers (220 miles) in diameter with a high albedo and stays in an uncommon orbital re


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Comet / Comet


#1 122P/de Vico

122P/de Vico (provisional designation: 1846 D1 ) is a periodic comet with an orbital period of 74 years. It fits the classical definition of a Halley-type comet with (20 years < period < 200 years). [5] It was discovered by Francesco de Vico in Rome on February 20, 1846. Periodic comet with 74 year

#2 C/2010 X1 (Elenin)

Comet C/2010 X1 (Elenin) is an Oort cloud comet discovered by Russian amateur astronomer Leonid Elenin on December 10, 2010, through remote control of the International Scientific Optical Network 's robotic observatory near Mayhill in the U.S. state of New Mexico . The discovery was made using the a

#3 206P/Barnard–Boattini

206P/Barnard–Boattini was the first comet to be discovered by photographic means. [6] The American astronomer Edward Emerson Barnard did so on the night of October 13, 1892. Comet 206P/Barnard–Boattini Discovery Discovery date October 13, 1892 Alternative designations Barnard 3; D/1892 T1; P/1892 T1

#4 77P/Longmore

77P/Longmore is a periodic comet in the Solar System . Periodic comet with 6 year orbit 77P/Longmore Discovery Discovered by Andrew Jonathan Longmore Discovery date June 10, 1975 Alternative designations 1974 XIV; 1981 XVI; 1988 XVIII Orbital characteristics A Epoch March 6, 2006 Aphelion 4.893 AU P

#5 Comet Ikeya–Seki

Comet Ikeya–Seki , formally designated C/1965 S1 , 1965 VIII , and 1965f , was a long-period comet discovered independently by Kaoru Ikeya and Tsutomu Seki . First observed as a faint telescopic object on September 18, 1965, the first calculations of its orbit suggested that on October 21, it would

#6 C/2016 U1 (NEOWISE)

C/2016 U 1 (NEOWISE) is a hyperbolic comet discovered 21   October 2016 by NEOWISE , the asteroid-and-comet-hunting portion of the Wide-Field Infrared Survey Explorer ( WISE ) mission. [1] [2] [3] The comet may be visible to skywatchers on Earth , at an estimated +6th   magnitude (naked eye brightne


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Galaxy / Galaxy


#1 J1000+0221

J1000+0221 was the most distant gravitational lens galaxy known (up until the discovery of the IRC 0218 lens galaxy), and remains the most distant quad-image lens galaxy discovered so far. The measured distance the light has traveled, including the lensed deflection, is 9.4   billion light years. [4

#2 NGC 1259

NGC 1259 is a lenticular galaxy [2] located about 243 million light-years away [3] in the constellation Perseus . [4] The galaxy was discovered by astronomer Guillaume Bigourdan on October 21, 1884 [5] and is a member of the Perseus Cluster . [6] [5] Lenticular galaxy in the constellation Perseus NG

#3 NGC 341

NGC 341 is a spiral galaxy in the constellation Cetus . It was discovered on October 21, 1881 by Édouard Stephan . It was described by Dreyer as "faint, pretty large, round, a little brighter middle, mottled but not resolved." It has a companion galaxy, PGC 3627 , which is sometimes called NGC 341B.

#4 NGC 442

NGC 442 is a spiral galaxy of type S0/a? (edge on) located in the constellation Cetus . Lewis Swift discovered it on October 21, 1886. Dreyer first described it as "very faint, small, round, bright star to southeast." The star is actually located northeast of NGC 442, but, due to the way optical tel

#5 NGC 2336

NGC 2336 is a spiral galaxy located in the constellation Camelopardalis . It is located at a distance of circa 100 million light years from Earth, which, given its apparent dimensions, means that NGC 2336 is about 200,000 light years across. It was discovered by Wilhelm Tempel in 1876. [2] Spiral ga

#6 NGC 605

NGC 605 is a lenticular galaxy in the constellation Andromeda , which is about 234 million light-years from the Milky Way . It was discovered on October 21, 1881 by the French astronomer Édouard Jean-Marie Stephan . [6] [5] Lenticular galaxy in the constellation Andromeda NGC 605 NGC 605 Observation


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Institution / Institution


#1 Starkenburg Observatory

The Starkenburg Observatory ( German : Starkenburg-Sternwarte ) is an astronomical observatory in Heppenheim , Germany. It was founded in 1970, and currently has about 150 members. [2] [3] Observatory Starkenburg Observatory Named after Starkenburg   Observatory   code 611   Location Starkenburg , G

#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 Skinakas Observatory

Skinakas Observatory [1] ( Greek : Αστεροσκοπείο Σκίνακα [2] ) is an astronomical observatory located on the eponymous peak of Psiloritis , on the island of Crete , Greece . It has a 1.3 m modified Ritchey–Chrétien telescope and a 0.3 m Schmidt–Cassegrain telescope , which are operated by the Univer

#4 Ladd Observatory

Ladd Observatory is an astronomical observatory at Brown University in Providence, Rhode Island . [2] Founded in 1891 it was primarily designed for student instruction and also research. [3] The facility operated a regional timekeeping service. It was responsible for the care and calibration of cloc

#5 Andrushivka Astronomical Observatory

Andrushivka Astronomical Observatory ( Ukrainian : Андрушівська астрономічна обсерваторія ) is a private astronomical observatory in the town suburbs of Andrushivka , Zhytomyr Oblast , Ukraine . It was established in 2001. [2] The founder and director of the observatory is Yuri Ivashchenko . The obs

#6 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

#7 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

#8 Leiden Observatory

Leiden Observatory ( Dutch : Sterrewacht Leiden ) is an astronomical institute of Leiden University , in the Netherlands . Established in 1633 to house the quadrant of Rudolph Snellius , it is the oldest operating university observatory in the world, with the only older still existing observatory be

#9 Earlham College Observatory

Earlham College Observatory is a historic observatory building located on the campus of Earlham College at Richmond , Wayne County, Indiana . It was built in 1861, and is a one-story, brick building with a hipped roof. It consists of a 19-foot-square central section topped by a copper dome with a re

#10 Vera C. Rubin Observatory

The Vera C. Rubin Observatory , previously referred to as the Large Synoptic Survey Telescope ( LSST ), is an astronomical observatory currently under construction in Chile. Its main task will be carrying out a synoptic astronomical survey, the Legacy Survey of Space and Time ( LSST ). [11] [12] The

#11 El Arenosillo

El Arenosillo Test Centre (CEDEA) is the name of a rocket launch site for suborbital rockets managed by INTA , located near Mazagón in Spain. [2] It is located in the province of Huelva , Andalucía , in the southwest coast of Spain (37.1° N, 6.7° W). [3] CEDEA is adjacent to the Center of Excellence

#12 Yerkes Observatory

Yerkes Observatory ( / ˈ j ɜːr k iː z / YUR -keez ) is an astronomical observatory located in Williams Bay, Wisconsin , United States. The observatory was operated by the University of Chicago Department of Astronomy and Astrophysics [2] [3] from its founding in 1897 to 2020. Ownership was transferr

#13 Rossall School

Rossall School is a public school (English independent day and boarding school ) for 0–18 year olds, between Cleveleys and Fleetwood , Lancashire . Rossall was founded in 1844 by St Vincent Beechey as a sister school to Marlborough College which had been founded the previous year. Its establishment

#14 International Astronautical Congress

Every year, the International Astronautical Federation with the support of the International Academy of Astronautics and the International Institute of Space Law (IISL), holds the International Astronautical Congress ( IAC ) which is hosted by one of the national society members of the IAF. Annual m


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Meteorite / Meteorite


#1 WD 1145+017 b

WD 1145+017 b (also known by its EPIC designation EPIC 201563164.01 ), is a confirmed exoplanetary object, likely rocky, orbiting around and being vaporized by the white dwarf star WD 1145+017 . It was discovered by NASA 's Kepler spacecraft on its "Second Light" mission. It is located about 570 lig

#2 WASP-76b

WASP-76b is a Hot Jupiter exoplanet orbiting the star WASP-76 in the constellation of Pisces . The planet was discovered on October 21, 2013 and as of 2022 is the only known planet in its planetary system . It orbits its star at a distance of 0.033 AU with a period of 1.8 days . Its mass is 0.92 tim


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Researcher / Researcher


#1 Lyudmila Karachkina

Lyudmila Georgievna Karachkina ( Russian : Людмила Георгиевна Карачкина , born 3 September 1948, Rostov-on-Don ) is an astronomer and discoverer of minor planets . [2] Ukrainian astronomer Minor planets discovered: 130   [1] see §   List of discovered minor planets In 1978 she began as a staff astro

#2 Lyudmila Zhuravleva

Lyudmila Vasilyevna Zhuravleva ( Russian : Людмила Васильевна Журавлёва , Ukrainian : Людмила Василівна Журавльова , romanized :   Ljudmyla Vasylivna Žuravljova ; born 22 May 1946) is a Soviet , Russian and Ukrainian astronomer , who worked at the Crimean Astrophysical Observatory in Nauchnij, where

#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 Jorge Bobone

Jorge E. Bobone (1901 – October 21, 1958) was an Argentinian astronomer . Argentine astronomer "Bobone" redirects here. For other uses, see Bobone (disambiguation) . This article needs additional citations for verification . ( July 2013 ) He performed his work at the Observatorio Nacional Argentino

#5 Eugène Joseph Delporte

Eugène Joseph Delporte (10 January 1882   – 19 October 1955) was a Belgian astronomer born in Genappe . [2] [3] Belgian astronomer Minor planets discovered: 66   [1] see §   List of discovered minor planets He discovered a total of sixty-six asteroids . Notable discoveries include 1221 Amor (which l

#6 Yoshikane Mizuno

Yoshikane Mizuno ( 水野 義兼 , Mizuno Yoshikane , born 1954) is a Japanese astronomer and co-discoverer of asteroids . [2] The Minor Planet Center credits him with the discovery of 52 minor planets he made at the Kani Observatory ( 403 ) between 1989 and 1993. [1] Japanese astronomer Minor planets disco

#7 Ingrid van Houten-Groeneveld

Ingrid van Houten-Groeneveld ( Dutch pronunciation: [ˈɪŋɡrɪt fɑn ˈɦʌutə(ŋ) ˈɣrunəˌvɛlt] ; [3] 21 October 1921 – 30 March 2015) was a Dutch astronomer . Dutch astronomer (1921–2015) Ingrid van Houten-Groeneveld Born Ingrid Groeneveld ( 1921-10-21 ) 21 October 1921 [1] Berlin , Weimar Republic Died 30

#8 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

#9 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

#10 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

#11 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

#12 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

#13 James Pound

James Pound (1669–1724) was an English clergyman and astronomer. English astronomer This article needs additional citations for verification . ( May 2022 ) Pound's grave in the churchyard of St Mary the Virgin, Wanstead , and a stone placed later to commemorate his instruction of James Bradley

#14 Edward Knobel

Edward Ball Knobel (21 October 1841 – 25 July 1930) was an English businessman and amateur astronomer . He was born in London , England . British astronomer (1841–1930) He started to study law but his love of geology made him change to the Government School of Mines (now part of Imperial College Lon

#15 John Couch Adams

John Couch Adams FRS FRSE FRAS ( / k uː tʃ / ; 5 June 1819 – 21 January 1892) was a British mathematician and astronomer . He was born in Laneast , near Launceston, Cornwall , and died in Cambridge . British mathematician and astronomer (1819–1892) John Couch Adams FRS FRSE FRAS Adams c.   1870 Born

#16 Bevan Sharpless

Bevan Percival Sharpless (August 2, 1904 – October 28, 1950) [1] was an American astronomer, best known for his 1944 discovery that the orbit of Phobos was decaying . American astronomer Sharpless at the United States Naval Observatory in a 1930 press photo

#17 Louis de l'Isle de la Croyère

Louis de l'Isle de la Croyère [1] (1685, Paris – 10 October 1741, Petropavlovsk , [2] Kamtchatka ), was a French astronomer who served the Russian Empire and became an academician of the Russian Academy of Sciences in Saint-Petersburg . French astronomer Louis de l'Isle de la Croyere Portrait of Lou

#18 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

#19 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

#20 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 §  


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Star / Star


#1 Alpha Piscium

Alpha Piscium ( α   Piscium ) is a binary star [6] system in the equatorial constellation of Pisces . Based upon parallax measurements made by the Hipparcos spacecraft , it is about 151   light-years from the Solar System . Binary star system in the constellation Pisces α Piscium Location of α Pisci

#2 NQ Vulpeculae

NQ Vulpeculae also known as Nova Vulpeculae 1976 , was a nova that appeared in the constellation Vulpecula in 1976. It was discovered visually at 18:20 UT on October 21, 1976 by English amateur astronomer George Alcock . Its apparent magnitude at the time of discovery was 6.5 [5] It reached its maxi

#3 WISE J080822.18-644357.3

WISE J080822.18-644357.3 , also called J0808 , is a 45 +11 −7 Myr old [4] star system in the Carina constellation with a circumstellar debris disk orbiting an M-type red dwarf about 331 lightyears from Earth . J080822.18-644357.3 Artist's depiction of J080822.18-644357.3 Credit : NASA /Jonathan Hold


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