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langs: 13 декабря [ru] / december 13 [en] / 13. dezember [de] / 13 décembre [fr] / 13 dicembre [it] / 13 de diciembre [es]

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

Asteroid / Asteroid


#1 1862 Apollo

1862 Apollo / ə ˈ p ɒ l oʊ / is a stony asteroid , approximately 1.5 kilometers in diameter, classified as a near-Earth object (NEO). It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 24 April 1932, but lost and not recovered until 1973. 1862 Apollo A three-dimensiona

#2 24260 Kriváň

24260 Kriváň , provisional designation 1999 XW 127 , is a stony Eunomian asteroid from the middle region of the asteroid belt , approximately 8 kilometers in diameter. It was discovered by Slovak astronomer Peter Kušnirák at the Czech Ondřejov Observatory on 13 December 1999, and named after the Kri

#3 774 Armor

774 Armor is a minor planet orbiting the Sun in the main belt . It was discovered on December 13, 1913 in Paris by French astronomer Charles le Morvan and was named after the Celtic region of Armorica . [2] The asteroid is orbiting at a distance of 3.05   AU with a period of 5.32   yr and an eccentr

#4 2018 XB4

2018 XB 4 (also written 2018 XB4 ) is an Apollo near-Earth asteroid roughly 53 meters (170 feet) in diameter. It was discovered on 13 December 2018 when the asteroid was about 0.125   AU (18,700,000   km; 11,600,000   mi) from Earth and had a solar elongation of 146 ° . It passed closest approach to

#5 2011 ES4

2011 ES 4 (also written 2011 ES4 ) is an Apollo near-Earth asteroid roughly 22–49 meters (72–160 feet) in diameter. It was first observed on 2 March 2011 when the asteroid was about 0.054   AU (8,100,000   km; 5,000,000   mi) from Earth and had a solar elongation of 159 degrees. It passed closest ap

#6 4179 Toutatis

4179 Toutatis , provisional designation 1989 AC , is an elongated, stony asteroid and slow rotator , [11] classified as a near-Earth object and potentially hazardous asteroid of the Apollo asteroid and Alinda asteroid groups, [ citation needed ] approximately 2.5 kilometers in diameter. Discovered b

#7 1115 Sabauda

1115 Sabauda / s ə ˈ b ɔː d ə / is a carbonaceous Meliboean asteroid from the outer region of the asteroid belt , approximately 68 kilometers in diameter. Discovered in 1928 by Italian astronomer Luigi Volta , it was assigned the provisional designation 1928 XC . The asteroid was probably named afte

#8 3200 Phaethon

3200 Phaethon / ˈ f eɪ . ə θ ɒ n / (previously sometimes spelled Phaeton ), provisional designation 1983 TB , is an active [8] Apollo asteroid with an orbit that brings it closer to the Sun than any other named asteroid (though there are numerous unnamed asteroids with smaller perihelia, such as (13

#9 (523643) 2010 TY53

(523643) 2010 TY 53 , provisional designation 2010 TY 53 is a trans-Neptunian object and centaur located in the outermost region of the Solar System . With an absolute magnitude of 5.7, it approximately measures 325 kilometers (200 miles) in diameter. It was discovered on 4 August 2010 by the Pan-ST

#10 2020 XR

2020 XR is an Apollo near-Earth object and potentially hazardous asteroid roughly 390 meters (1,000 feet) in diameter. With a 5-day observation arc it was briefly listed as having a 1 in 11,000 chance of impacting Earth on 1 December 2028 placing it at the top of the Sentry Risk Table with a Palermo


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Comet / Comet


#1 Great Comet of 1744

The Great Comet of 1744 , whose official designation is C/1743 X1 , and which is also known as Comet de Chéseaux or Comet Klinkenberg-Chéseaux , was a spectacular comet that was observed during 1743 and 1744. It was discovered independently in late November 1743 by Jan de Munck , in the second week

#2 2I/Borisov

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

#3 46P/Wirtanen

46P/Wirtanen is a small short-period comet with a current orbital period of 5.4 years. [5] [6] It was the original target for close investigation by the Rosetta spacecraft , planned by the European Space Agency , but an inability to meet the launch window caused Rosetta to be sent to 67P/Churyumov–G

#4 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

#5 69P/Taylor

Comet Taylor , is a periodic comet in the Solar System , first discovered by Clement J. Taylor ( Cape Town , South Africa ) on November 24, 1915. Periodic comet with 7 year orbit 69P/Taylor Discovery Discovered by Clement J. Taylor Discovery date November 24, 1915 Alternative designations 1915 W1, 1


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Galaxy / Galaxy


#1 NGC 1985

NGC 1985 (also known as 2MASS J05374779+3159200 ) is a small, bright reflection nebula located in the constellation Auriga . It was discovered by William Herschel on December 13, 1790. [5] It has an apparent magnitude of 12.8 and its size is 0.68. [2] Reflection nebula in the constellation Auriga NG

#2 NGC 903

NGC 903 is a lenticular galaxy in the constellation Aries . It is estimated to be about 230 million light-years from the Milky Way [3] and has a diameter of approximately 35,000 ly. NGC 903 was discovered on 13 December 1884 by the astronomer Edouard Stephan . [5] [6] Lenticular galaxy in the conste

#3 NGC 157

NGC 157 is an intermediate spiral galaxy in the constellation of Cetus . The compiler of the New General Catalogue , John Louis Emil Dreyer noted that NGC 157 was "pretty bright, large, extended, between 2 considerably bright stars". It was discovered on December 13, 1783 by William Herschel . [3] N

#4 NGC 520

NGC 520 is a pair of colliding spiral galaxies about 105 million light-years away in the constellation Pisces . [6] They were discovered by astronomer William Herschel on 13 December 1784. [7] Pair of colliding galaxies in the constellation Pisces NGC 520 NGC 520 by HST Observation data ( J2000 epoc

#5 NGC 904

NGC 904 is an elliptical galaxy in the constellation Aries . It is estimated to be 244 million light years from the Milky Way and has a diameter of approximately 85,000 ly. NGC 904 was discovered on 13 December 1884 by the astronomer Edouard Stephan . [5] [6] [7] Elliptical galaxy in the constellati

#6 NGC 488

NGC 488 is a face-on spiral galaxy in the constellation Pisces . It is at a distance of about 90 million light-years away from Earth. [3] Its diameter is estimated to be 52,6 Kpc (171.000 ly). [1] The galaxy has a large central bulge, and is considered a prototype galaxy with multiple spiral arms. I


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Institution / Institution


#1 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

#2 CERGA Observatory

The CERGA Observatory ( French : Centre de recherches en géodynamique et astrométrie ; obs. code : 010 ) was a scientific department and astronomical station of the Côte d'Azur Observatory in southern France, where several asteroids were discovered during 1984–1993. [1] [2] Observatory Centre de rec

#3 Junk Bond Observatory

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

#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 Observatory of Turin

The Observatory of Turin ( Italian: Osservatorio Astronomico di Torino , also known as Pino Torinese ; obs. code : 022 ) is an astronomical observatory owned and operated by Italy's National Institute for Astrophysics ( Italian : Istituto Nazionale di Astrofisica , INAF). It is located on the top of

#6 Pistoia Mountains Astronomical Observatory

The Pistoia Mountains Astronomical Observatory ( Italian : Osservatorio Astronomico della Montagna Pistoiese ; obs. code : 104 ), also known as the San Marcello Observatory and the Pian dei Termini Observatory ( Italian : Osservatorio di Pian dei Termini ), is an astronomical observatory in San Marc

#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 Institute of Applied Astronomy

The Institute of Applied Astronomy of the Russian Academy of Sciences ( name in Russian : Институт прикладной астрономии — official name in Russian : Федеральное государственное бюджетное учреждение науки Институт прикладной астрономии Российской академии наук (Federal State Budgetary Institution of

#9 United Kingdom Infrared Telescope

The United Kingdom Infra-Red Telescope ( UKIRT ) is a 3.8 metre (150   inch) infrared reflecting telescope , the second largest dedicated infrared (1 to 30 micrometres) telescope in the world. It is located on Mauna Kea , Hawai'i as part of Mauna Kea Observatory . Until 2014 it was operated by the J

#10 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

#11 Hyper-Kamiokande

Hyper-Kamiokande is a neutrino observatory being constructed on the site of the Kamioka Observatory , near Kamioka , Japan . The project started in 2010 as a successor to Super-Kamiokande . It was ranked as among the 28 top priority projects of the Japanese government. Thirteen countries from three


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Meteorite / Meteorite


#1 HD 1461 b

HD 1461 b is an extrasolar planet , orbiting the 6th magnitude G-type star HD 1461 , 76.5 light years away in the constellation Cetus . This planet has a minimum mass 6.4 times that of Earth and orbits at a distance of 0.0634 AU with an eccentricity of less than 0.131. It is currently unknown whethe

#2 Wold Cottage meteorite

The Wold Cottage meteorite (also called the Wold Newton meteorite ) fell near Wold Cottage farm in 1795, a few miles away from the village of Wold Newton in Yorkshire , England. Meteorite that fell in Wold Newton in 1795 Wold Cottage On display in the Natural History Museum, London Type Chondrite Cl


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Researcher / Researcher


#1 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

#2 George R. Viscome

George R. Viscome (born 1956) is an American astronomer and a discoverer of minor planets . He also worked as a broadcast technician in Albany, New York . [2] American astronomer Minor planets discovered: 33   [1] see §   List of discovered minor planets Viscome has discovered 33 asteroids . [1] Ast

#3 Spiru Haret

Spiru C. Haret ( Romanian pronunciation:   [ˈspiru haˈret] ; 15 February 1851 – 17 December 1912) was a Romanian mathematician , astronomer , and politician . He made a fundamental contribution to the n -body problem in celestial mechanics by proving that using a third degree approximation for the d

#4 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

#5 Charles-Louis Largeteau

Charles-Louis Largeteau (1791–1857) was a French physicist and astronomer . He was born in Mouilleron-en-Pareds in the Vendée into a poor family. His father, a gunner, died in the 1793 Battle of Le Mans . [1] He was taken in by an uncle in Fontenay-le-Comte , and excelled at school there, moving to

#6 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

#7 Axel Nielsen

Axel Vilfred Nielsen (13 December 1902 – 24 February 1970) was a Danish astronomer at the Ole Rømer Observatory in Aarhus from 1927 until his death in 1970. Danish astronomer For the Danish chess player, see Axel Nielsen (chess player) . In 1921, while still a student, Nielsen established his privat

#8 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

#9 Avi Loeb

Abraham " Avi " Loeb ( Hebrew : אברהם (אבי) לייב ; born February 26, 1962) is an Israeli -American theoretical physicist who works on astrophysics and cosmology . Loeb is the Frank B. Baird Jr. Professor of Science at Harvard University . He had been the longest serving chair of Harvard's Department

#10 Hipparchus

Hipparchus ( / h ɪ ˈ p ɑːr k ə s / ; Greek : Ἵππαρχος , Hipparkhos ; c.   190   – c.   120   BC) was a Greek astronomer , geographer , and mathematician . He is considered the founder of trigonometry , [1] but is most famous for his incidental discovery of precession of the equinoxes . [2] Hipparchu

#11 Jana Tichá

Jana Tichá (born 1965 in České Budějovice ) is a Czech astronomer and discoverer of minor planets . She studied at the University of Economics in Prague and graduated in 1987. In 1992 she was selected for the position of a director of the Kleť Observatory . Czech astronomer Jana Tichá with her ex-hu

#12 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

#13 Henri M.J. Boffin

Henri M. J. Boffin is a Belgian astronomer from the European Southern Observatory , [3] credited by the Minor Planet Center with the discovery of 11 numbered minor planets between 1999 and 2001, some in collaboration with Thierry Pauwels . [1] Belgian astronomer Minor planets discovered: 11   [1] 37

#14 Dennis di Cicco

Dennis di Cicco (born 1950) is an American amateur astronomer and a discoverer of minor planets , who lives in New England . American astronomer Minor planets discovered: 60   [1] see §   List of discovered minor planets He has discovered 60 numbered asteroids from his backyard observatory in Sudbur

#15 William McCrea (astronomer)

Sir William Hunter McCrea FRS FRSE FRAS (13 December 1904 – 25 April 1999) [1] [2] was an English astronomer and mathematician . English astronomer and mathematician

#16 Martin Hoek

Martin Hoek (also Martinus ) (13 December 1834 in The Hague – 3 September 1873 in Utrecht [1] ) was a Dutch astronomer and experimental physicist . Dutch astronomer and experimental physicist (1834–1873) Martin Hoek He started studying medicine in 1852, but spent his last two years at the University

#17 Pehr Wilhelm Wargentin

Pehr Wilhelm Wargentin ( Sunne parish, Jämtlands län 11 September 1717 ( OS ) – Stockholm 13 December 1783), Swedish astronomer and demographer . Swedish astronomer and demographer Pehr Wilhelm Wargentin Wargentin was the son of the vicar of Sunne Wilhelm Wargentin (1670–1735) and his spouse Christi

#18 Einhard

Einhard (also Eginhard or Einhart ; Latin : E(g)inhardus ; c. 775 – March 14, 840) was a Frankish scholar and courtier. Einhard was a dedicated servant of Charlemagne and his son Louis the Pious ; his main work is a biography of Charlemagne, the Vita Karoli Magni , "one of the most precious literary

#19 William Kwong Yu Yeung

William Kwong Yu Yeung (born 1960; also known simply as Bill Yeung ; Chinese : 楊光宇 ) is a Hong Kong -born, Canadian amateur astronomer with telescopes based in the United States . [2] [3] Astronomer noted for the discovery of over 2,000 minor planets Minor planets discovered: 2031   [1] see §   List

#20 Albert Einstein

Albert Einstein ( / ˈ aɪ n s t aɪ n / EYEN -styne ; [6] German: [ˈalbɛʁt ˈʔaɪnʃtaɪn] ( listen ) ; 14 March 1879   – 18 April 1955) was a German-born theoretical physicist , [7] widely acknowledged to be one of the greatest and most influential physicists of all time. Einstein is best known for devel


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Science / Science


#1 Geologic Calendar

The Geologic Calendar is a scale in which the geological lifetime of the Earth is mapped onto a calendrical year; that is to say, the day one of the Earth took place on a geologic January 1 at precisely midnight, and today's date and time is December 31 at midnight. [1] On this calendar, the inferre


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Star / Star


#1 U Orionis

U Orionis (abbreviated U Ori ) is a Mira-type variable star in the constellation Orion . It is a classical long period variable star that has been well observed for over 120 years. Variable star in the constellation Orion U Orionis Location of U Orionis (circled) Observation data Epoch J2000.0      

#2 Altair

Altair is the brightest star in the constellation of Aquila and the twelfth-brightest star in the night sky . It has the Bayer designation Alpha   Aquilae, which is Latinised from α   Aquilae and abbreviated Alpha   Aql or α   Aql . Altair is an A-type main-sequence star with an apparent visual magn

#3 Betelgeuse

Betelgeuse is a red supergiant of spectral type M1-2 and one of the largest stars visible to the naked eye . It is usually the tenth-brightest star in the night sky and, after Rigel , the second-brightest in the constellation of Orion . It is a distinctly reddish, semiregular variable star whose app

#4 HR Delphini

HR Delphini , also known as Nova Delphini 1967, was a nova which appeared in the constellation Delphinus in 1967. It was discovered by George Alcock at 22:35 UT on 8 July 1967, after searching the sky for over 800 hours with binoculars. At the time of discovery it had an apparent magnitude of 5.0. I

#5 DQ Herculis

DQ Herculis , or Nova Herculis 1934 , was a slow, bright nova occurring in the northern constellation of Hercules in December 1934. This cataclysmic variable star was discovered on 13 December 1934 by J. P. M. Prentice from Stowmarket, Suffolk . [12] It reached peak brightness on 22 December 1934 wi


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