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langs: 12 декабря [ru] / december 12 [en] / 12. dezember [de] / 12 décembre [fr] / 12 dicembre [it] / 12 de diciembre [es]

days: december 9 / december 10 / december 11 / december 12 / december 13 / december 14 / december 15

Asteroid / Asteroid


#1 4082 Swann

4082 Swann , provisional designation 1984 SW 3 , is a carbonaceous asteroid from the inner regions of the asteroid belt , approximately 10 kilometers in diameter. 4082 Swann Discovery   [1] Discovered   by C. Shoemaker Discovery   site Palomar Obs. Discovery   date 27 September 1984 Designations MPC

#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 2013 YP139

2013 YP 139 is a dark sub-kilometer asteroid on a highly eccentric orbit, classified as a near-Earth object and potentially hazardous asteroid of the Apollo group , approximately 400 meters (1,300 feet) in diameter. [4] 2013 YP 139 Near-Earth asteroid 2013 YP 139 —the six red dots in the composite i

#4 1979 XB

1979 XB is a lost asteroid [2] with a short observation arc of 3.9 days that cannot be recovered with targeted observations and awaits serendipitous survey observations. It is classified as a near-Earth object and potentially hazardous asteroid of the Apollo group [3] and is estimated to be 660 mete

#5 451 Patientia

Patientia ( minor planet designation : 451 Patientia ) is approximately the 15th-largest asteroid in the asteroid belt with a diameter of 225   km. It was discovered by French astronomer Auguste Charlois on 4 December 1899, and assigned a provisional designation 1899 EY . Main-belt asteroid 451 Pati

#6 101955 Bennu

101955 Bennu (provisional designation 1999 RQ 36 ) [9] is a carbonaceous asteroid in the Apollo group discovered by the LINEAR Project on 11 September 1999. It is a potentially hazardous object that is listed on the Sentry Risk Table and tied for the highest cumulative rating on the Palermo Technica

#7 15268 Wendelinefroger

15268 Wendelinefroger , provisional designation 1990 WF 3 , is a stony, spheroidal, and binary [lower-alpha 1] Nysian asteroid from the inner regions of the asteroid belt , approximately 3.4 kilometers in diameter. 15268 Wendelinefroger Discovery [1] Discovered   by E. W. Elst Discovery   site La Si

#8 (614689) 2020 XL5

(614689) 2020 XL 5 is a near-Earth asteroid and Earth trojan discovered by the Pan-STARRS 1 survey at Haleakala Observatory , Hawaii on 12 December 2020. It oscillates around the Sun – Earth L 4 Lagrangian point (leading 60°), one of the dynamically stable locations where the combined gravitational

#9 2012 XE133

2012 XE 133 is an asteroid , classified as near-Earth object of the Aten group that is a temporary co-orbital of Venus . [4] 2012 XE 133 Discovery Discovered   by Catalina Sky Survey Discovery   date December 12, 2012 Designations MPC   designation 2012 XE 133 Minor   planet category Aten asteroid [

#10 4085 Weir

4085 Weir , provisional designation 1985 JR , is a stony Eunomian asteroid from the central regions of the asteroid belt , approximately 10 kilometers in diameter. It was discovered on 13 May 1985, by astronomer Carolyn Shoemaker at the Palomar Observatory in California, United States. The asteroid

#11 162173 Ryugu

162173 Ryugu , provisional designation 1999 JU 3 , is a near-Earth object and a potentially hazardous asteroid of the Apollo group . It measures approximately 900 metres (3,000   ft) in diameter and is a dark object of the rare spectral type Cb, [11] with qualities of both a C-type asteroid and a B-

#12 319 Leona

Leona ( minor planet designation : 319 Leona ), provisional designation A920 HE , is a dark asteroid and tumbling slow rotator from the outermost regions of the asteroid belt , approximately 70 kilometers in diameter. It was discovered on 8 October 1891, by French astronomer Auguste Charlois at Nice

#13 2017 YE5

2017 YE 5 is a binary pair of asteroids of approximately equal size and mass, each about 0.9   km (0.56   mi) in diameter. Classified as a near-Earth asteroid and potentially hazardous object of the Apollo group , 2017 YE 5 was discovered by amateur astronomer Claudine Rinner at the Oukaïmeden Obser

#14 2201 Oljato

2201 Oljato , provisional designation 1947 XC , is a stony and extremely eccentric active [10] asteroid and sizable near-Earth object of the Apollo group , approximately 2 kilometers in diameter. It has an Earth minimum orbit intersection distance of 0.0031   AU (460   thousand   km ) and is associa

#15 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

#16 3854 George

3854 George , provisional designation : 1983 EA , is a stony Hungaria asteroid and Mars-crosser from the innermost regions of the asteroid belt , approximately 3.5 kilometers (2.2 miles) in diameter. It was discovered on 13 March 1983, by American astronomer couple Carolyn and Eugene Shoemaker at th

#17 (230965) 2004 XA192

(230965) 2004 XA 192 is a Kuiper-belt object with a diameter of 339 +120 −95   km . It has an absolute magnitude of approximately 4.42, and albedo around 26%. It was discovered on 12 December 2004 at Palomar Observatory . (230965) 2004 XA 192 Precovery image of 2004 XA 192 taken by the Palomar Obser

#18 4031 Mueller

4031 Mueller , provisional designation 1985 CL , is a Hungaria asteroid from the inner regions of the asteroid belt , approximately 4 kilometers in diameter. It was discovered on 12 February 1985, by American astronomer Carolyn Shoemaker at Palomar Observatory , California, and named after astronome

#19 (225312) 1996 XB27

(225312) 1996 XB 27 , provisional designation 1996 XB 27 , is a bright mini- asteroid , classified as near-Earth object of the Amor group , approximately 84 meters in diameter. It was discovered on 12 December 1996, by astronomers of the Spacewatch program at the Kitt Peak National Observatory near

#20 3873 Roddy

3873 Roddy , provisional designation 1984 WB , is a stony Hungarian asteroid , Mars-crosser and suspected binary system , [5] from the innermost regions of the asteroid belt , approximately 7 kilometers in diameter. It was discovered on 21 November 1984, by American astronomer Carolyn Shoemaker at t


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Book / Book


#1 Five Billion Years of Solitude

Five Billion Years of Solitude: The Search for Life Among the Stars is a nonfiction work by the science author Lee Billings. The text was initially published on October 3, 2013 by Current. The paperback version was published on October 28, 2014. Book by Lee Billings This article needs additional cit


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Comet / Comet


#1 144P/Kushida

144P/Kushida is a periodic comet discovered in January, 1994, by Yoshio Kushida at the Yatsugatake South Base Observatory in Japan . This was the first comet discovery of 1994 and his second discovery within a month. Periodic comet with 7 year orbit 144P/Kushida Comet 144P/Kushida 2008/2009 Appearan

#2 209P/LINEAR

209P/LINEAR is a periodic comet discovered on 3 February 2004 by Lincoln Near-Earth Asteroid Research (LINEAR) using a 1.0-metre (39   in) reflector . [1] Initially it was observed without a coma and named 2004 CB as a minor planet or asteroid, but in March 2004 Robert H. McNaught observed a comet t

#3 Comet Kohoutek

Comet Kohoutek ( formally designated C/1973 E1 and formerly as 1973 XII and 1973f ) [lower-alpha 3] is a comet that passed close to the Sun towards the end of 1973. Early predictions of the comet's peak brightness suggested that it had the potential to become one of the brightest comets of the 20th

#4 C/2021 A1 (Leonard)

C/2021 A1 (Leonard) was a long period comet [4] that was discovered by G. J. Leonard at the Mount Lemmon Observatory on 3 January 2021 (a year before perihelion ) when the comet was 5   AU (750   million   km ) from the Sun. [1] It had a retrograde orbit. The nucleus was about 1   km (0.6   mi) acro

#5 C/2013 R1 (Lovejoy)

C/2013 R1 (Lovejoy) is a long-period comet discovered on 7 September 2013 by Terry Lovejoy using a 0.2-meter (8   in) Schmidt–Cassegrain telescope . [1] It is the fourth comet discovered by Terry Lovejoy. C/2013 R1 crossed the celestial equator on 14 October 2013, becoming a better Northern Hemisphe

#6 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


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Galaxy / Galaxy


#1 NGC 6412

NGC 6412 is a spiral galaxy located in the constellation Draco . It is designated as SBc in the galaxy morphological classification scheme and was discovered by the British astronomer William Herschel on 12 December 1797. NGC 6412 is located at about 76.6 Mly away from earth. [1] [2] [3] [4] Spiral

#2 NGC 372

NGC 372 is a triple star located in the constellation Pisces . It was discovered on December 12, 1876 by Dreyer , who described it as "stellar, much brighter middle, mottled but not resolved." [2] Star system in the constellation Pisces NGC 372 Observation data ( J2000 epoch ) Constellation Pisces R

#3 NGC 373

NGC 373 is an elliptical galaxy located in the constellation Pisces . It was discovered on December 12, 1876 by John Louis Emil Dreyer . It was described by Dreyer as "very faint, very small." [3] Elliptical galaxy in the constellation Pisces NGC 373 SDSS image of NGC 373 Observation data ( J2000 ep

#4 NGC 1279

NGC 1279 is a lenticular galaxy estimated to be 324 million light-years away from the Milky Way [3] in the constellation Perseus . [4] It has diameter of about 110,000 ly, [3] and is a member of the Perseus Cluster . [5] [6] Lenticular galaxy in the constellation Perseus NGC 1279 SDSS image of NGC 1

#5 NGC 1276

NGC 1276 is an optical [2] [3] double star system [1] [8] [9] [10] located in the constellation Perseus . [1] [8] [10] The system was discovered by astronomer John Dreyer [1] [10] [11] on December 12, 1876. [1] [11] The pair consists of two 15th magnitude stars [1] [4] known as Pul -3 270349 and Pul

#6 NGC 1281

NGC 1281 is a compact [3] elliptical galaxy [4] located about 200 million light-years away [3] in the constellation Perseus . [5] NGC 1281 was discovered by astronomer John Dreyer on December 12, 1876. [6] It is a member of the Perseus Cluster . [7] [6] Elliptical galaxy in the constellation Perseus

#7 NGC 655

NGC 655 is a lenticular galaxy located 400 million light-years away [2] in the constellation Cetus . [3] It was discovered in a sky-survey by Ormond Stone on December 12, 1885. [4] Lenticular galaxy in the constellation Cetus NGC 655 NGC 655 from the Digitized Sky Survey Observation data ( J2000 epo


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Institution / Institution


#1 Remote Astronomical Society Observatory of New Mexico

The Remote Astronomical Society ( RAS ) Observatory, Mayhill , also known as the New Mexico Skies Observatory ( obs. code H06 [2] ) is a remotely controlled observatory hosted by the New Mexico Skies astronomy hosting company. [3] This article needs additional citations for verification . ( May 2009

#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 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

#4 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

#5 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

#6 Network for Astronomy School Education

Network for Astronomy School Education (NASE) is an International Astronomical Union (IAU) Working Group that works on Training Teachers for primary and secondary schools. In 2007, professor George K. Miley , IAU vice-president, invited Rosa M. Ros to begin exploring the idea of setting up an astron

#7 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

#8 Llano del Hato National Astronomical Observatory

The Llano del Hato National Astronomical Observatory ( Spanish : OAN de Llano del Hato , or Observatorio Astronómico Nacional de Llano del Hato , code : 303 ) is an astronomical observatory in Venezuela . It is 3600 meters above sea level and is the country's main observatory. It is situated above t


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Meteorite / Meteorite


#1 Mu Arae b

Mu Arae b , often designated HD 160691 b , formally named Quijote / k i ˈ h oʊ t iː / , is an exoplanet orbiting the star Mu Arae of the constellation Ara . Extrasolar planet in the constellation Ara Mu Arae b Simulated image of Mu Arae b Discovery Discovered   by Butler , Marcy Discovery   site Cal


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Researcher / Researcher


#1 Charles Marie de La Condamine

Charles Marie de La Condamine (28 January 1701 – 4 February 1774) was a French explorer , geographer , and mathematician . He spent ten years in territory which is now Ecuador , measuring the length of a degree of latitude at the equator and preparing the first map of the Amazon region based on astr

#2 Sherburne Wesley Burnham

Sherburne Wesley Burnham (December 12, 1838 – March 11, 1921) was an American astronomer . American astronomer Sherburne Wesley Burnham For more than 50   years Burnham spent all his free time observing the heavens, mainly concerning himself with binary stars .

#3 Jean Mueller

Jean Mueller (born 1950) is an American astronomer and discoverer of comets , minor planets , and a large number of supernovas at the U.S. Palomar Observatory in California. [1] American astronomer

#4 Robert Small (minister)

Robert Small FRSE (1732–1808) was a Scottish minister who served as Moderator of the General Assembly of the Church of Scotland in 1791. He was keenly interested in mathematics and astronomy and was a founder member of the Royal Society of Edinburgh , [1] (elected Fellow on 17 November 1783 [2] ) to

#5 Pamela L. Gay

Pamela L. Gay (born December 12, 1973) is an American astronomer , educator, podcaster , and writer, best known for her work in astronomical podcasting and citizen science astronomy projects. She is a senior education and communication specialist and senior scientist for the Planetary Science Instit

#6 Erich Jantsch

Erich Jantsch (8 January 1929 – 12 December 1980) was an Austrian-born American astrophysicist , engineer, educator, author, [1] consultant and futurist, especially known for his work in the social systems design movement in Europe in the 1970s. [2] Austrian-American astrophysicist Jantsch, Erich Ph

#7 Henrietta Swan Leavitt

Henrietta Swan Leavitt ( / ˈ l ɛ v ɪ t / ; July 4, 1868 – December 12, 1921) was an American astronomer . A graduate of Radcliffe College , she worked at the Harvard College Observatory as a " computer ", tasked with examining photographic plates in order to measure and catalog the brightness of sta

#8 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

#9 James Challis

James Challis FRS (12 December 1803   – 3 December 1882) was an English clergyman, physicist and astronomer . Plumian Professor of Astronomy and Experimental Philosophy and the director of the Cambridge Observatory , he investigated a wide range of physical phenomena though made few lasting contribu

#10 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

#11 List of minor planet discoverers

This is a list of minor-planet discoverers credited by the Minor Planet Center with the discovery of one or several minor planets (such as near-Earth and main-belt asteroids , Jupiter trojans and distant objects ). [1] As of January   2022 [update] , the discovery of 612,011 numbered minor planets a

#12 Emilia Pisani Belserene

Emilia Pauline Pisani ( Lee ) Belserene (December 12, 1922 – December 11, 2012) [1] was an American astronomer specializing in the observation of variable stars and recognized as an expert on RR Lyrae variable stars. [2] She became known for her work as the director of the Maria Mitchell Observatory

#13 William Henry Stanley Monck

William Henry Stanley Monck (21 April 1839 – 24 June 1915) was an Irish astronomer and philosopher. After an early education at Kilkenny College, Monck attended Trinity College Dublin . In 1878 he was appointed as Professor of Moral Philosophy and remained in that position until 1892. On 28 August 1

#14 Maimonides

Moses ben Maimon [lower-alpha 1] (1138–1204), commonly known as Maimonides ( / m aɪ ˈ m ɒ n ɪ d iː z / ) [lower-alpha 2] and also referred to by the acronym Rambam ( Hebrew : רמב״ם ), [lower-alpha 3] was a medieval Sephardic Jewish philosopher who became one of the most prolific and influential Tora

#15 Karel Slavíček

Karel Slavíček , ( simplified Chinese : 严嘉乐 ; traditional Chinese : 嚴嘉樂 ; pinyin : Yán Jiālè ), (12 December 1678 – 24 September 1735) was a Jesuit missionary and scientist, the first Czech sinologist and author of the first precise map of Beijing . Czech scientist and missionary to China (1678–1735

#16 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

#17 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 §  

#18 Tõnu Viik (astronomer)

Tõnu Viik (born 12 December 1939, in Rohuneeme ) is an Estonian astronomer. [1] Estonian astronomer (born 1939) Tõnu Viik From 2008 to 2014 he was the president of Estonian Naturalists' Society . [1] In 2000, he was awarded with Order of the White Star , III class. [2]

#19 Masayuki Iwamoto

Masayuki Iwamoto ( 岩本 雅之 , Iwamoto Masayuki , born 1954) is a Japanese astronomer from Awa in the Tokushima Prefecture . [2] The Minor Planet Center credits him with the co-discovery of 6 asteroids made together with Japanese astronomer Toshimasa Furuta at the Tokushima-Kainan Astronomical Observato

#20 Leo Anton Karl de Ball

Leo Anton Karl de Ball (November 23, 1853 – December 12, 1916) was a German - Austrian astronomer . He is credited by the Minor Planet Center as "K. de Ball" for his (sole) asteroid discovery, [1] but seems to be best known as Leo de Ball . Leo Anton Karl de Ball. Asteroids discovered: 1   [1] 230 A


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Star / Star


#1 Rigel

Rigel is a blue supergiant star in the constellation of Orion . It has the Bayer designation β Orionis , which is Latinized to Beta Orionis and abbreviated Beta Ori or β Ori . Rigel is the brightest and most massive component   – and the eponym   – of a star system of at least four stars that appear

#2 SN 1895B

SN 1895B was a supernova event in the irregular dwarf galaxy NGC 5253 , positioned 16 ″ east and 23″ north of the galactic center. [1] It is among the closest known extragalactic supernova events. [4] The supernova was discovered by Williamina Fleming on December 12, 1895 after noticing an unusual s

#3 SN 2004gt

SN 2004GT was a type Ic supernova that happened in the interacting galaxy NGC 4038 on December 12, 2004. The event occurred in a region of condensed matter in the western spiral arm . [2] The progenitor was not identified from older images of the galaxy, and is either a type WC Wolf-Rayet star with


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