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langs: 15 декабря [ru] / december 15 [en] / 15. dezember [de] / 15 décembre [fr] / 15 dicembre [it] / 15 de diciembre [es]

days: december 12 / december 13 / december 14 / december 15 / december 16 / december 17 / december 18

Asteroid / Asteroid


#1 1665 Gaby

1665 Gaby , provisional designation 1930 DQ , is a stony asteroid and a relatively slow rotator from the inner regions of the asteroid belt , approximately 11 kilometers in diameter. It was discovered on 27 February 1930, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germa

#2 1853 McElroy

1853 McElroy , provisional designation 1957 XE , is an asteroid from the outer region of the asteroid belt , approximately 21 kilometers in diameter. It was discovered on 15 December 1957, by the Indiana Asteroid Program at Goethe Link Observatory near Brooklyn, Indiana, United States, and named for

#3 8187 Akiramisawa

8187 Akiramisawa , provisional designation 1992 XL , is an Eos asteroid from the outer region of the asteroid belt . It was discovered by Japanese astronomer Satoru Otomo at Kiyosato Observatory ( 894 ) on 15 December 1992. [1] The assumed C-type asteroid has a rotation period of 5.8 hours and measu

#4 2015 XY261

2015 XY 261 (also written 2015 XY261 ) is an Apollo near-Earth asteroid [2] that is also a Mars crosser . It is roughly 10–22   meters in diameter and passed less than 1 lunar distance , 0.0025696   AU (384,410   km; 238,860   mi) from Earth on 15 December 2015. [5] Asteroid 2015 XY 261 Discovery [1

#5 6235 Burney

6235 Burney , provisional designation 1987 VB , is a Florian or background asteroid from the inner regions of the asteroid belt , approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 14 November 1987, by Japanese astronomers Seiji Ueda and Hiroshi Kaneda at the Kushiro Observator

#6 10241 Miličević

10241 Miličević , provisional designation 1999 AU 6 , is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt , approximately 11 kilometers (6.8 miles) in diameter. It was discovered on 9 January 1999, by Croatian astronomer Korado Korlević at the Višnjan Observatory in Cro

#7 (20729) 1999 XS143

(20729) 1999 XS 143 , provisional designation : 1999 XS 143 , is a Jupiter trojan from the Greek camp , approximately 51 kilometers (32 miles) in diameter. It was discovered on 15 December 1999, by American astronomer Charles Juels at the Fountain Hills Observatory in Arizona. [1] The dark Jovian as

#8 (21601) 1998 XO89

(21601) 1998 XO 89 , provisional designation : 1998 XO 89 , is a Jupiter trojan from the Greek camp , approximately 55 kilometers (34 miles) in diameter. It was discovered on 15 December 1998, by astronomers with the Lincoln Near-Earth Asteroid Research at the Lincoln Lab's ETS near Socorro, New Mex

#9 11395 Iphinous

11395 Iphinous , provisional designation : 1998 XN 77 , is a large Jupiter trojan from the Greek camp approximately 66 kilometers (41 miles) in diameter. It was discovered on 15 December 1998, by astronomers with the Lincoln Near-Earth Asteroid Research at the Lincoln Laboratory's Experimental Test

#10 1682 Karel

1682 Karel , provisional designation 1949 PH , is a stony Florian asteroid from the inner regions of the asteroid belt , approximately 7.5 kilometers in diameter. 1682 Karel Lightcurve -based 3D-model of Karel Discovery [1] Discovered   by K. Reinmuth Discovery   site Heidelberg Obs. Discovery   dat

#11 4957 Brucemurray

4957 Brucemurray , provisional designation 1990 XJ , is a stony asteroid , classified as near-Earth object of the Amor group and as Mars-crosser , approximately 3 kilometers in diameter. It was discovered by American astronomer Eleanor Helin at the Palomar Observatory in California on 15 December 19

#12 16525 Shumarinaiko

16525 Shumarinaiko , provisional designation 1991 CU 2 , is a stony Nysian asteroid and synchronous binary system from the inner regions of the asteroid belt , approximately 5 kilometers in diameter. It was discovered on 14 February 1991, by Japanese astronomers Kin Endate and Kazuro Watanabe at the

#13 1669 Dagmar

1669 Dagmar , provisional designation 1934 RS , is a rare-type Themistian asteroid from the outer region of the asteroid belt , approximately 42 kilometers in diameter. It was discovered on 7 September 1934, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany, and named

#14 23 Thalia

Thalia [5] ( minor planet designation : 23 Thalia ) is a large main-belt asteroid . It was discovered by J. R. Hind on December 15, 1852, at the private observatory of W. Bishop, located in Hyde Park, London, England. [6] Bishop named it after Thalia , the Muse of comedy and pastoral poetry in Greek

#15 2017 XX61

2017 XX 61 is a small near-Earth object , approximately 17 meters (56 feet) in diameter, that transited Earth at 8 lunar distances on 18 December 2017 at 14:54 UTC. The Apollo asteroid on an eccentric orbit was first observed by the Mount Lemmon Survey and was lost on the following night. As of 2020

#16 1765 Wrubel

1765 Wrubel , provisional designation 1957 XB , is a dark background asteroid from the outer regions of the asteroid belt , approximately 40 kilometers in diameter. It was discovered on 15 December 1957, by astronomers of the Indiana Asteroid Program at Goethe Link Observatory in Indiana, United Sta

#17 1503 Kuopio

1503 Kuopio , provisional designation 1938 XD , is a stony Eunomian asteroid from the central region of the asteroid belt , approximately 19 kilometers in diameter. It was discovered on 15 December 1938, by astronomer Yrjö Väisälä at the Turku Observatory in Southwest Finland. [13] The asteroid was

#18 9950 ESA

9950 ESA , provisional designation 1990 VB , is an eccentric asteroid and elongated near-Earth object of the Amor group , approximately 1.7 kilometers in diameter. It was discovered on 8 November 1990, by French astronomer Christian Pollas at the Centre de recherches en géodynamique et astrométrie (

#19 10415 Mali Lošinj

10415 Mali Lošinj , provisional designation 1998 UT 15 , is a dark background asteroid and very slow rotator from the outer region of the asteroid belt , approximately 16 kilometers in diameter. It was discovered by Croatian astronomer Korado Korlević at Višnjan Observatory , Croatia, on 23 October

#20 10645 Brač

10645 Brač , provisional designation 1999 ES 4 , is a stony Eunomia asteroid from the central region of the asteroid belt , approximately 10 kilometers in diameter. It was discovered on 14 March 1999, by Croatian astronomer Korado Korlević at Višnjan Observatory , and named after the Croatian island


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Comet / Comet


#1 Comet Skjellerup–Maristany

Comet Skjellerup–Maristany , formally designated C/1927 X1 , 1927 IX , and 1927k , was a long-period comet which became very bright in 1927. This great comet was observable to the naked eye for about 32 days. [2] It was independently discovered by amateur astronomers John Francis Skjellerup in Austr

#2 71P/Clark

71P/Clark is a periodic comet in the Solar System with an orbital period of 5.5 years. Periodic comet with 5 year orbit 71P/Clark Discovery Discovered by Michael Clark Discovery date June 9, 1973 Alternative designations 1973 V; 1978 XXIII; 1984 VIII; 1989 XX; 1994t Orbital characteristics A Epoch M

#3 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

#4 C/2000 U5 (LINEAR)

C/2000 U5 (LINEAR) is a single-apparition comet discovered on October 29, 2000, by Lincoln Near-Earth Asteroid Research . [1] The comet has an observation arc of 362 days [3] allowing a good estimate of the orbit. C/2000 U5 is, as of 2015, the 13th most hyperbolic comet ever discovered and will leav

#5 81P/Wild

Comet 81P/Wild , also known as Wild 2 (pronounced "vilt two") ( / ˈ v ɪ l t / VILT ), is a comet named after Swiss astronomer Paul Wild , who discovered it on January 6, 1978, using a 40-cm Schmidt telescope at Zimmerwald , Switzerland. [5] Periodic comet with 6 year orbit 81P/Wild Comet Wild 2 (81P

#6 C/2011 W3 (Lovejoy)

Comet Lovejoy , formally designated C/2011 W3 (Lovejoy) , is a long-period comet and Kreutz sungrazer . It was discovered in November 2011 by Australian amateur astronomer Terry Lovejoy . The comet's perihelion took it through the Sun's corona on 16 December 2011, after which it emerged intact, thou


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Galaxy / Galaxy


#1 UGC 12158

UGC 12158 or PGC 69533 is an Sb-type barred spiral galaxy located approximately 384,000,000   ly (118   Mpc) away from Earth in the constellation of Pegasus . Its tight spiral disk spans approximately 140,000   ly (40   kpc) across, whose scale at heliocentric distance is about 36.9 kiloparsecs per

#2 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 , [


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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 List of solar eclipses visible from Russia

This list of solar eclipses visible from Russia enumerates the solar eclipses that have been seen and will be seen in Russia . Lists of solar eclipses Geometry of a total solar eclipse (not to scale) Solar eclipses in antiquity Solar eclipses in the Middle Ages Modern history 16th 17th 18th 19th 20t

#4 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

#5 University of Oklahoma Observatory

University of Oklahoma Observatory (IAU code H30) is an astronomical observatory . It is located in Norman, Oklahoma on the campus of the University of Oklahoma . Built in 1939, with a 10-inch Newtonian reflector and a smaller 3.5-inch telescope, it was housed in a 16-foot dome atop what was at the

#6 Virgo interferometer

The Virgo interferometer is a large interferometer designed to detect gravitational waves predicted by the general theory of relativity . Virgo is a Michelson interferometer that is isolated from external disturbances: its mirrors and instrumentation are suspended and its laser beam operates in a va

#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 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

#9 Oregon Star Party

The Oregon Star Party (OSP) was founded in 1987 and is considered one of the best annual events in the United States for observational astronomy . [1] [2] The Oregon Star Party takes place in the Ochoco National Forest , near the geographical center of the state of Oregon . It is far enough from pop

#10 George Bishop's Observatory

George Bishop's Observatory ( code : 969 ) was an astronomical observatory erected in 1836 by the astronomer George Bishop near his residence at the South Villa of Regent's Park , London . It was equipped with a 7-inch (180   mm) Dollond refractor. Observatory Bishop Observatory Bishop Observatory i

#11 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


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Meteorite / Meteorite


#1 Kepler-22b

Kepler-22b (also known by its Kepler object of interest designation KOI-087.01 ) is an exoplanet orbiting within the habitable zone of the Sunlike star Kepler-22 . It is located about 600 light-years (180 parsecs) from Earth in the constellation of Cygnus . It was discovered by NASA 's Kepler Space


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Researcher / Researcher


#1 Charles Augustus Young

Charles Augustus Young (15 December 1834 – 4 January 1908) one of the foremost solar spectroscopist astronomers in the United States . He observed solar eclipses and worked on spectroscopy of the Sun . He observed a solar flare with a spectroscope on 3 August 1872, and also noted that it coincided w

#2 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

#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 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

#5 Frank Kameny

Franklin Edward Kameny (May 21, 1925   – October 11, 2011) [1] was an American gay rights activist. He has been referred to as "one of the most significant figures" in the American gay rights movement . [2] American gay rights activist (1925–2011) Frank Kameny Kameny in 2010 Born Franklin Edward Kam

#6 Johann Gottfried Köhler

Johann Gottfried Köhler (15 December 1745 – 19 September 1801) was a German astronomer who discovered a number of nebulae , star clusters , and galaxies . German astronomer This article needs additional citations for verification . ( October 2013 ) Köhler is best remembered for his discovery of Open

#7 Thierry Pauwels

Thierry Pauwels (born 22 July 1957, Ghent ) is a Belgian astronomer from the Royal Observatory of Belgium . [2] [3] Between 1996 and 2008 he discovered and co-discovered 146 minor planets . This makes him one of the top 100 minor planet discoverers. [1] Belgian astronomer Minor planetss discovered:

#8 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

#9 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

#10 Steven J. Ostro

Steven Jeffrey Ostro (March 9, 1946 – December 15, 2008) was an American scientist specializing in radar astronomy . He worked at NASA 's Jet Propulsion Laboratory . Ostro led radar observations of numerous asteroids, as well as the moons of Jupiter and Saturn, Saturn's rings, and Mars and its satel

#11 Vibert Douglas

Allie (or Alice ) Vibert Douglas , OC MBE (December 15, 1894 – July 2, 1988), who usually went by her middle name, [1] was a Canadian astronomer and the first Canadian woman to become an astrophysicist. [2] [3] Canadian astronomer Alice (Allie) Vibert Douglas Born ( 1894-12-14 ) 14 December 1894 Mon

#12 John Russell Hind

John Russell Hind FRS FRSE LLD (12 May 1823 – 23 December 1895) was an English astronomer . English astronomer For other people with the same name, see John Hind . John Russell Hind John Russell Hind c. 1860s Born ( 1823-05-12 ) 12 May 1823 Nottingham Died 23 December 1895 (1895-12-23) (aged   72) T

#13 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

#14 Pierre Antonini

Pierre Antonini is a retired French mathematics professor and amateur astronomer who has discovered several minor planets and two supernovae at his private Observatoire de Bédoin (Bedoin Observatory; observatory code: 132 ) located at Bédoin , southeastern France. For many of his discoveries he used

#15 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

#16 Daniel du Toit

Daniel Stefanus du Toit (1917-1981) was a South African astronomer . South African astronomer This section needs additional citations for verification . ( December 2018 ) Daniel du Toit Born ( 1917-12-15 ) 15 December 1917 Springfontein, Free State Died 28 September 1981 (1981-09-28) (aged   63) Blo

#17 Paul Wiegert

Paul Arnold Wiegert (born 1967) is a Canadian astronomer , discoverer of minor planets and professor at the University of Western Ontario . [2] Canadian astronomer Minor planets discovered: 85   [1] see §   List of discovered minor planets Wiegert studies unusual orbits of both observed objects and

#18 Charles Schnetzler

Charles Carter Schnetzler (June 3, 1930   – December 15, 2009) was a planetary scientist at NASA 's Goddard Space Flight Center . Schnetzler is best known for analyzing moon rocks brought back by the Apollo program and for studying the Earth's environment using the Landsat and the Earth Observing Sy

#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 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


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Star / Star


#1 LP 944-20

LP 944-20 is a dim brown dwarf of spectral class M9 located about 21 light-years from the Solar System in the constellation of Fornax . With a visual apparent magnitude of 18.69, it has one of the dimmest visual magnitudes listed on the RECONS page. Nearby brown dwarf in the constellation Fornax LP

#2 Alnilam

Alnilam is the central star of Orion's Belt in the equatorial constellation of Orion . It has the Bayer designation ε Orionis , which is Latinised to Epsilon Orionis and abbreviated Epsilon Ori or ε Ori . This is a massive, blue supergiant star some 2,000   light-years distant. It is estimated to be


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