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langs: 20 ноября [ru] / november 20 [en] / 20. november [de] / 20 novembre [fr] / 20 novembre [it] / 20 de noviembre [es]

days: november 17 / november 18 / november 19 / november 20 / november 21 / november 22 / november 23


Asteroid / Asteroid


#1 46610 Bésixdouze

46610 Bésixdouze ( French pronunciation:   ​ [be.sis.duːz] ), provisional designation 1993 TQ 1 , is a bright background asteroid from the inner regions of the asteroid belt , approximately 2 kilometers in diameter. It was discovered on 15 October 1993, by Japanese amateur astronomers Kin Endate and

#2 Lost minor planet

A minor planet is " lost " when today's observers cannot find it, because its location is too uncertain to target observations. This happens if the orbital elements of a minor planet are not known accurately enough, typically because the observation arc for the object is too short, or too few observ

#3 (153814) 2001 WN5

(153814) 2001 WN 5 is a sub-kilometer asteroid , classified as near-Earth object and potentially hazardous asteroid of the Apollo group . 2028 Earth/Moon approach [1] Date & Time Approach to Nominal distance uncertainty region ( 3-sigma ) 2028-Jun-26 05:23 Earth 248 714   km ± 25 km [3] 2028-Jun-26

#4 21900 Orus

21900 Orus / ˈ ɔːr ə s / is a Jupiter trojan from the Greek camp , approximately 53 kilometers (33 miles) in diameter, and a target of the Lucy mission to be visited in November 2028. [14] The dark Jovian asteroid belongs to the 100 largest Jupiter trojans and has a rotation period of 13.5 hours. [1

#5 2017 MZ8

2017 MZ 8 (also written 2017 MZ8 ) is a near-Earth object and a potentially hazardous asteroid , meaning that it has an orbit that can make close approaches to the Earth and large enough to cause significant regional damage in the event of impact. It is an Apollo asteroid , meaning that it is an Ear

#6 2301 Whitford

2301 Whitford , provisional designation 1965 WJ , is a background asteroid from the outer regions of the asteroid belt , approximately 17 kilometers (11 miles) in diameter. It was discovered on 20 November 1965, by astronomers of the Indiana Asteroid Program at Goethe Link Observatory in the United

#7 6267 Rozhen

6267 Rozhen , provisional designation 1987 SO 9 , is a stony Florian asteroid from the inner regions of the asteroid belt , approximately 3 kilometers in diameter. In 1987, the asteroid was discovered by Eric Elst at Rozhen Observatory , Bulgaria, and was later named after the discovering observator

#8 50000 Quaoar

Quaoar ( 50000 Quaoar ), provisional designation 2002 LM 60 , is a dwarf planet in the Kuiper belt , a region of icy planetesimals beyond Neptune . A non-resonant object ( cubewano ), it measures approximately 1,121   km (697   mi) in diameter, about half the diameter of Pluto . The object was disco

#9 9951 Tyrannosaurus

9951 Tyrannosaurus , provisional designation 1990 VK 5 , is a stony Vestian asteroid from the inner regions of the asteroid belt , approximately 17 kilometers in diameter. It was discovered on 15 November 1990, by Belgian astronomer Eric Elst at ESO's La Silla Observatory in northern Chile. [7] It w

#10 19521 Chaos

19521 Chaos is a cubewano , a Kuiper-belt object not in resonance with any planet. Chaos was discovered in 1998 by the Deep Ecliptic Survey with Kitt Peak's 4   m telescope. Its albedo is 0.050 +0.030 −0.016 , [8] making it, with its absolute magnitude (H) of 4.8, [4] 600 +140 −130   km in diameter.

#11 Dimorphos

Dimorphos is a small asteroid satellite that was discovered in 2003. It is the minor-planet moon of a synchronous binary system with 65803 Didymos as the primary asteroid. After being provisionally designated as S/2003 (65803) 1 with informal nicknames such as "Didymos B" and "Didymoon", the Working

#12 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

#13 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

#14 759 Vinifera

759 Vinifera ( prov. designation : A913 QC or 1913 SJ ) is a large background asteroid from the central regions of the asteroid belt , approximately 50 kilometers (31 miles) in diameter. It was discovered on 26 August 1913, by German astronomer Franz Kaiser at the Heidelberg-Königstuhl State Observa

#15 9949 Brontosaurus

9949 Brontosaurus , provisional designation 1990 SK 6 , is a stony asteroid from the inner regions of the asteroid belt , roughly 10 kilometers in diameter. It was discovered on 22 September 1990, by Belgian astronomer Eric Elst at ESO's La Silla Observatory in northern Chile. [4] It was named after

#16 (416400) 2003 UZ117

(416400) 2003 UZ 117 is a trans-Neptunian object and suspected member of the Haumea family , located in the Kuiper belt in the outermost region of the Solar System . It was discovered on 24 October 2003, by astronomers of the Spacewatch survey project at Kitt Peak Observatory , Arizona. [4] The obje

#17 1316 Kasan

1316 Kasan , provisional designation 1933 WC , is a stony asteroid and sizable Mars-crosser on an eccentric orbit from the asteroid belt , approximately 7 kilometers in diameter. It was discovered on 17 November 1933, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peni

#18 (48639) 1995 TL8

(48639) 1995 TL 8 is a binary trans-Neptunian object from the scattered disc in the outermost regions of the Solar System . It was discovered by Arianna Gleason in 1995 and measures approximately 176 kilometers in diameter. Its 80-kilometer minor-planet moon , provisionally designated S/2002 (48639)

#19 1054 Forsytia

1054 Forsytia / f ɔːr ˈ s ɪ t i ə / is a dark background asteroid , approximately 46 kilometers in diameter, from the outer regions of the asteroid belt . It was discovered on 20 November 1925, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany and assign

#20 2007 WD5

2007 WD 5 is an Apollo asteroid some 50   m (160   ft) in diameter [2] and a Mars-crosser asteroid first observed on 20 November 2007, by Andrea Boattini of the Catalina Sky Survey . Early observations of 2007 WD 5 caused excitement amongst the scientific community when it was estimated as having as


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Book / Book


#1 Bibliography of encyclopedias: astronomy and astronomers

This is a list of encyclopedias and encyclopedic/biographical dictionaries published on the subject of astronomy and astronomers in any language. Entries are in the English language except where noted. Wikipedia bibliography This list is incomplete ; you can help by adding missing items . ( Septembe


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Comet / Comet


#1 173P/Mueller

173P/Mueller , also known as Mueller 5 , is a periodic comet in the Solar System . Periodic comet with 13 year orbit 173P/Mueller Discovery Discovered by Jean Mueller Discovery date November 20, 1993 Alternative designations 1993 W1; 1994 XXV; 2005 T1 Orbital characteristics A Epoch March 6, 2006 Ap

#2 C/1807 R1

C/1807 R1 , also known as the Great Comet of 1807 , is a long-period comet . It was visible to naked-eye observers in the northern hemisphere from early September 1807 to late December, and is ranked among the great comets due to its exceptional brightness. Long-period comet C/1807 R1 The Great Come

#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

#4 C/2007 W1 (Boattini)

C/2007 W1 (Boattini) is a long-period comet discovered on 20 November 2007, by Andrea Boattini at the Mt. Lemmon Survey . [1] At the peak the comet had an apparent magnitude around 5. [5] C/2007 W1 (Boattini) Discovery Discovered by Andrea Boattini Mt. Lemmon Survey ( G96 ) [1] Discovery date 20 Nov


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Galaxy / Galaxy


#1 NGC 481

NGC 481 is an elliptical galaxy in the constellation Cetus . [1] It is located approximately 229 million light-years from Earth and was discovered on November 20, 1886 by astronomer Lewis A. Swift . [2] [3] Elliptical galaxy in the constellation Cetus NGC 481 SDSS view of NGC 481 Observation data (

#2 NGC 2613

NGC 2613 is a spiral galaxy in the southern constellation of Pyxis , next to the western constellation border with Puppis . It was discovered by the German-born astronomer William Herschel on November 20, 1784. [8] With an apparent visual magnitude of 10.5, the galaxy is faintly visible using a tele

#3 NGC 1979

NGC 1979 (also known as ESO 487-24 ) is a lenticular galaxy in the Lepus constellation. It is about 78 million light-years from the Milky Way . [4] It was discovered by William Herschel on 20 November, 1784 [5] and its size is 1.8 by 1.8 arc minutes . [3] Elliptical galaxy in the constellation Lepus

#4 NGC 530

NGC 530 , also known as IC 106 , is a lenticular galaxy in the constellation Cetus . It is approximately 226 million light years from the Milky Way and has a diameter of around 100,000 light years. The object was discovered on November 20, 1886 by the American astronomer Lewis A. Swift , who listed

#5 NGC 150

NGC 150 (also known as PGC 2052 ) is a barred spiral galaxy in the constellation Sculptor . It is about 70 million light years away from the Solar System, and it has a diameter of about 55,000 light years. [4] It was discovered on 20 November 1886, by Lewis A. Swift . [5] The Type II supernova SN 19

#6 NGC 519

NGC 519 , also occasionally referred to as PGC 5182 is an elliptical galaxy located approximately 242 million light-years from the Solar System [4] in the constellation Cetus . [2] It was discovered on 20 November 1886 by astronomer Lewis Swift . [5] Elliptical galaxy in the constellation Cetus NGC


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Institution / Institution


#1 Air Force Maui Optical and Supercomputing observatory

The Air Force Maui Optical and Supercomputing observatory is an Air Force Research Laboratory (AFRL) operating location at Haleakala Observatory on Maui , Hawaii , with a twofold mission ( 608 ). First, it conducts the research and development mission on the Maui Space Surveillance System (MSSS) at

#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 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

#4 Farpoint Observatory

Farpoint Observatory is an astronomical observatory owned and operated by the Northeast Kansas Amateur Astronomers' League , or NEKAAL . It is located on the grounds of Mission Valley High School at Eskridge , near Auburn, Kansas , approximately 30 miles (48   km) southwest of Topeka , Kansas , Unit

#5 India-based Neutrino Observatory

India-based Neutrino Observatory ( INO ) is a particle physics research project under construction to primarily study atmospheric neutrinos in a 1,200 meters (3,900   ft) [1] deep cave under INO Peak near Theni , Tamil Nadu , India . This project is notable in that it is anticipated to provide a pre

#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 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

#8 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

#9 Association in Scotland to Research into Astronautics

The Association in Scotland To Research into Astronautics (ASTRA) , is a membership-based society that concerns itself with all matters related to space research. Its current center of operations is in the Scottish city of Glasgow and it is affiliated to a number of other bodies, including the Feder


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Meteorite / Meteorite


#1 Yamato 791197

Yamato 791197 , official abbreviation Y-791197 , is a meteorite that was found in Antarctica on November 20, 1979. [3] Yamato 791197 Type Achondrite Class Lunar meteorite Group Anorthositic [1] Parent body Moon Country Antarctica Coordinates 71°30′S 35°40′E [1] Observed fall No Fall date 0.03-0.09 M

#2 Sikhote-Alin meteorite

An iron meteorite fell on the Sikhote-Alin Mountains , in southeastern Russia, in 1947. Large iron meteorite falls have been witnessed and fragments recovered but never before, in recorded history , a fall of this magnitude. [2] An estimated 23 tonnes [1] of fragments survived the fiery passage thro

#3 Buzzard Coulee meteorite

Buzzard Coulee [1] is the collective name of the meteorites fallen on November 20, 2008 over Saskatchewan , Canada . Buzzard Coulee 64.5 gram Buzzard Coulee sample Type Chondrite Class Ordinary chondrite Group H4 Shock stage S2 Weathering grade W0 Country Canada Region Saskatchewan , Canada Coordina

#4 Bench Crater meteorite

The Bench Crater meteorite is a meteorite discovered on the Moon by Apollo 12 astronauts in 1969. It is part of the friable basalt lunar sample 12037. Found on the north-west rim of the Bench Crater , it is the first meteorite to be discovered on a Solar System body other than the Earth. Its diamete


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Researcher / Researcher


#1 Stuart L. Shapiro

Stuart Louis Shapiro (born December 6, 1947 in New Haven , Connecticut ) is an American theoretical astrophysicist, who works on numerical relativity with applications in astrophysics, specialising in compact objects such as neutron stars and black holes. American theoretical astrophysicist (born 19

#2 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

#3 Giovanni Battista Agucchi

Giovanni Battista Agucchi (20 November 1570   – 1 January 1632 [1] ) was an Italian churchman, Papal diplomat and writer on art theory . He was the nephew and brother of cardinals, and might have been one himself if he had lived longer. He served as secretary to the Papal Secretary of State , then t

#4 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

#5 Willem de Sitter

Willem de Sitter (6 May 1872 – 20 November 1934) was a Dutch mathematician , physicist , and astronomer . This article needs additional citations for verification . ( September 2022 ) Dutch mathematician, physicist, and astronomer "de Sitter" redirects here. For other uses, see de Sitter (disambigua

#6 Honoré Flaugergues

Pierre-Gilles-Antoine-Honoré Flaugergues , usually known as Honoré Flaugergues (16 May 1755 in Viviers, Ardèche – 26 November 1835 or 20 November 1830) was a French astronomer . French astronomer (Note, different sources give different years of death).

#7 Luca Gaurico

Luca Gaurico (in Latin, Lucas Gauricus ) (Giffoni March 12, 1475 – March 6, 1558 in Rome ) was an Italian astrologer, astronomer, astrological data collector [1] and mathematician. He was born to a poor family in the Kingdom of Naples , and studied judicial astrology , a subject he defended in his O

#8 Stefano Sposetti

Stefano Sposetti (born 22 December 1958) is a Swiss amateur astronomer and a prolific discoverer of minor planets . [2] [3] He lives in Gnosca , in the Italian-speaking part of Switzerland in the Ticino Alps , where the Gnosca Observatory is located. Swiss astronomer Flyby of Asteroid 2004 FH in Mar

#9 Jeff T. Alu

Jeffrey (Jeff) Thomas Alu (born January 1, 1966) is an American musician, photographer, graphic artist, and amateur astronomer who has participated in the Palomar Planet-Crossing Asteroid Survey . The asteroid 4104 Alu was named in his honour. [2] Minor planets discovered: 24   [1] see §   Discovere

#10 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

#11 Jaume Nomen

Jaume Nomen Torres (also: Jaime Nomen ; born June 23, 1960 in Tortosa , Catalonia) is a Spanish oral and maxillofacial surgeon , amateur astronomer and discoverer of numerous minor planets . He is of Catalan origin and became publicly known for the discovery of the near-Earth asteroid 2012 DA 14 (la

#12 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

#13 John Campbell (Royal Navy officer)

Vice-Admiral John Campbell (1720–1790) was born in the parish of Kirkbean in Kirkcudbrightshire , Scotland. Campbell was a British naval officer, navigational expert and colonial governor. 18th-century British naval officer, navigator and colonial governor For other people named John Campbell, see J

#14 Mikhail Lyapunov

Mikhail Vasilyevich Lyapunov ( 12 October   [ O.S. 30 September ]   1820   – 2 December   [ O.S. 20 November ]   1868 ) was a Russian astronomer and a head of the Demidov Lyceum in Yaroslavl . Russian astronomer This article is about the astronomer. For the military officer, see Mikhail Nikolaevich

#15 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

#16 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 §  

#17 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

#18 Jean-Claude Merlin

Jean-Claude Merlin (born 1954) is a French astronomer , founder-president of the Burgundy Astronomical Society ( French : Société Astronomique de Bourgogne ) and a discoverer of minor planets . He was laureate of the Marcel Bleustein-Blanchet Fondation de la Vocation in 1982 and received the Prix Ge

#19 Théophile Moreux

Théophile Moreux (20 November 1867 – 13 July 1954) was a French astronomer and meteorologist . French astronomer and meteorologist 1928 photograph of Théophile Moreux

#20 Shambhu Dayal Sinvhal

Shambhu Dayal Sinvhal (20 November 1923 - 27 May 2015) was an Indian mathematician, astronomist and a former vice chancellor of Kumaon University . [1] Born on 20 November 1923 at Indore in the largest Indian state of Madhya Pradesh to B. D. Sinvhal and Tara Devi, he started his career as a member o


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Science / Science


#1 Steady-state model

In cosmology , the steady-state model is an alternative to the Big Bang theory of evolution of the universe. In the steady-state model, the density of matter in the expanding universe remains unchanged due to a continuous creation of matter, thus adhering to the perfect cosmological principle , a pr


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Star / Star


#1 HD 139139

HD 139139 (also known as EPIC 249706694 ) is likely part of a bound pair system of main sequence stars about 350 light-years (110 parsecs) away from Earth in the constellation Libra . HD 139139 is a G-type main-sequence star , a little larger and more luminous than the sun , and at an almost identic

#2 Sigma Arietis

Sigma Arietis , Latinized from σ Arietis, is the Bayer designation for a star in the northern constellation of Aries . It has an apparent visual magnitude of +5.52, [2] which is bright enough for the star to be seen with the naked eye from dark suburban skies . The star is located at a distance of a

#3 Tabby's Star

Tabby's Star (also known as Boyajian's Star and WTF Star , and designated KIC 8462852 in the Kepler Input Catalog ) is an F-type main-sequence star in the constellation Cygnus approximately 1,470 light-years (450 parsecs ) from Earth. Unusual light fluctuations of the star, including up to a 22% dim

#4 Kelu-1

Kelu-1 / ˈ k eɪ l uː / is a system of two brown dwarfs of spectral types L2 and L4 [2] located in constellation Hydra at approximately 60.6 light-years from Earth . [4] It is among the first free-floating later-than-M-type brown dwarfs discovered, and sometimes considered as prototype of L-type brow


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