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langs: 18 декабря [ru] / december 18 [en] / 18. dezember [de] / 18 décembre [fr] / 18 dicembre [it] / 18 de diciembre [es]

days: december 15 / december 16 / december 17 / december 18 / december 19 / december 20 / december 21

Asteroid / Asteroid


#1 (144908) 2004 YH32

(144908) 2004 YH 32 , provisional designation 2004 YH 32 , is a centaur and damocloid orbiting the Sun with a very high inclination of almost 80°. [3] It was discovered on 18 December 2004 by the Siding Spring Survey at the Siding Spring Observatory in Australia. The critical and unusual object meas

#2 3102 Krok

3102 Krok , provisional designation 1981 QA , is a rare-type asteroid and slow rotator , classified as a near-Earth object of the Amor group , that measures approximately 1.5 kilometers in diameter. 3102 Krok Discovery   [1] Discovered   by L. Brožek Discovery   site Kleť Obs. Discovery   date 21 Au

#3 (126154) 2001 YH140

(126154) 2001 YH 140 , also written as (126154) 2001 YH140 , is a resonant trans-Neptunian object discovered on 18 December 2001, by American astronomers Chad Trujillo and Michael Brown at the Palomar Observatory in California. It measures approximately 345 kilometers in diameter. [4] (126154) 2001

#4 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

#5 430 Hybris

Hybris ( minor planet designation : 430 Hybris ) is a typical Main belt asteroid . 430 Hybris Discovery Discovered   by Auguste Charlois Discovery   date 18 December 1897 Designations MPC   designation (430) Hybris Pronunciation / ˈ h aɪ b r ɪ s / Alternative designations 1897 DM Minor   planet cate

#6 432 Pythia

Pythia ( minor planet designation : 432 Pythia ) is a typical Main belt asteroid . 432 Pythia Discovery Discovered   by Auguste Charlois Discovery   date 18 December 1897 Designations MPC   designation (432) Pythia Pronunciation / ˈ p ɪ θ i ə / [1] Named after The Pythia Alternative designations 189

#7 9223 Leifandersson

9223 Leifandersson , provisional designation 1995 YY 7 , is a background asteroid from the inner regions of the asteroid belt , approximately 4.5 kilometers in diameter. It was discovered on 18 December 1995, by astronomers of the Spacewatch program at Kitt Peak National Observatory in Arizona, Unit

#8 (219774) 2001 YY145

(219774) 2001 YY 145 , provisional designation 2001 YY 145 is a stony background asteroid and exceptionally slow rotator from the central region of the asteroid belt , approximately 1.5 kilometers (0.9 miles) in diameter. It was discovered on 18 December 2001, by astronomers with the Lowell Observat

#9 7816 Hanoi

7816 Hanoi , provisional designation 1987 YA , is an eccentric stony asteroid and Mars-crosser from the inner regions of the asteroid belt , approximately 3 kilometers in diameter. It was discovered on 18 December 1987, by Japanese astronomer Masahiro Koishikawa at the Ayashi Station ( 391 ) of the

#10 10551 Göteborg

10551 Göteborg , provisional designation 1992 YL 2 , is a stony Eoan asteroid and slow rotator from the outer region of the asteroid belt , approximately 13 kilometers in diameter. It was discovered on 18 December 1992, by Belgian astronomer Eric Elst at CERGA in Caussols ( 010 ), southeastern Franc

#11 4205 David Hughes

4205 David Hughes , provisional designation 1985 YP , is a Mars-crossing asteroid from inside the innermost regions of the asteroid belt , approximately 4 kilometers (2.5 miles) in diameter. It was discovered on 18 December 1985, by American astronomer Edward Bowell at Lowell's Anderson Mesa Station

#12 4489 Dracius

4489 Dracius , ( prov. designation : 1988 AK ), is a large Jupiter trojan from the Greek camp , approximately 90 kilometers (56 miles) in diameter. It was discovered on 15 January 1988, by American astronomer Edward Bowell at the Anderson Mesa Station of the Lowell Observatory near Flagstaff, Arizon

#13 (164121) 2003 YT1

(164121) 2003 YT 1 , provisional designation 2003 YT 1 , is a bright asteroid and synchronous binary system on a highly eccentric orbit, classified as near-Earth object and potentially hazardous asteroid of the Apollo group , approximately 2 kilometers (1.2 miles) in diameter. It was discovered on 1

#14 431 Nephele

Nephele ( minor planet designation : 431 Nephele ) is a large Themistian asteroid . It is spectral C-type and is probably composed of carbonaceous material. 431 Nephele Discovery Discovered   by Auguste Charlois Discovery   date 18 December 1897 Designations MPC   designation (431) Nephele Pronuncia

#15 3962 Valyaev

3962 Valyaev ( prov. designation : 1967 CC ) is a dark Themistian asteroid from the outer region of the asteroid belt . The presumed C-type asteroid has a rotation period of 16.4 hours and measures approximately 15 kilometers (9.3 miles) in diameter. It was discovered on 8 February 1967, by Russian

#16 (342842) 2008 YB3

(342842) 2008 YB 3 , provisional designation : 2008 YB 3 , is a sizable centaur and retrograde damocloid from the outer Solar System , approximately 67 kilometers (42 miles) in diameter. It was discovered on 18 December 2008, by astronomers with the Siding Spring Survey at the Siding Spring Observat


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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 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 Comet ISON

Comet ISON , formally known as C/2012 S1 , was a sungrazing comet from the Oort cloud which was discovered on 21 September 2012 by Vitaly Nevsky (Виталий Невский, Vitebsk , Belarus ) and Artyom Novichonok (Артём Новичонок, Kondopoga , Russia ). [4] Oort cloud comet C/2012 S1 (ISON) Comet ISON as cap

#3 C/2018 Y1 (Iwamoto)

C/2018 Y1 (Iwamoto) is a near-parabolic comet with a retrograde orbit discovered on December 18, 2018, by Japanese amateur astronomer Masayuki Iwamoto . [1] It passed closest to Earth on February 13, 2019. [2] It is expected to reach a magnitude of between 6.5 and 7.5, visible in binoculars or a sma

#4 C/2013 A1 (Siding Spring)

C/2013 A1 ( Siding Spring ) is an Oort cloud comet discovered on 3 January 2013 by Robert H. McNaught at Siding Spring Observatory using the 0.5-meter (20   in) Uppsala Southern Schmidt Telescope . [1] [6] For other uses, see Siding Spring . Oort cloud comet C/2013 A1 (Siding Spring) Comet Siding Sp

#5 Great Comet of 1811

The Great Comet of 1811 , [4] formally designated C/1811 F1 , is a comet that was visible to the naked eye for around 260 days, the longest recorded period of visibility until the appearance of Comet Hale–Bopp in 1997. In October 1811, at its brightest, and when it was 1.2 AU from Earth, it displaye

#6 161P/Hartley–IRAS

161P/Hartley–IRAS is a periodic comet with an orbital period of 21 years. It fits the classical definition of a Halley-type comet with (20 years < period < 200 years). [6] Periodic comet with 21 year orbit 161P/Hartley-IRAS Discovery Discovered by Malcolm Hartley IRAS Discovery date November 4, 1983

#7 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

#8 Great Comet of 1680

C/1680 V1 , also called the Great Comet of 1680 , Kirch's Comet , and Newton's Comet , was the first comet discovered by telescope . It was discovered by Gottfried Kirch and was one of the brightest comets of the seventeenth century. First comet discovered by telescope C/1680 V1 The Great Comet of 1


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Galaxy / Galaxy


#1 NGC 1444

NGC 1444 is a small open cluster of stars in the northern constellation of Perseus , about 2- 1 ⁄ 4 ° to the northwest of 43 Persei . [3] It has an angular diameter of 4   arcminutes and a brightness of 6.60 in visual magnitude. The cluster has sixty members of seventh magnitude or fainter, and is b

#2 3C 321

3C 321 is a system of two galaxies rotating around each other. They are notable for showing the first observed galaxy smiting another galaxy with a blast of energy, which is theorized to be from a supermassive black hole at the center of the former galaxy. Galaxy in the constellation Serpens This ar


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Institution / Institution


#1 British National Committee for Space Research

The British National Committee for Space Research (BNCSR) was a Royal Society committee formed in December 1958. It was formed primarily to be Britain's interface with the newly formed Committee on Space Research (COSPAR). Committee of the Royal Society British National Committee for Space Research

#2 Stratospheric Observatory for Infrared Astronomy

The Stratospheric Observatory for Infrared Astronomy ( SOFIA ) was an 80/20 joint project of NASA and the German Aerospace Center (DLR) [1] to construct and maintain an airborne observatory . NASA awarded the contract for the development of the aircraft, operation of the observatory and management o

#3 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

#4 Santa Lucia Stroncone Astronomical Observatory

The Santa Lucia Stroncone Astronomical Observatory ( Italian : Osservatorio Astrometrico Santa Lucia Stroncone ) is an astronomical observatory located at 350 metres (1,150   ft) altitude in Stroncone , near the city of Terni , in Umbria , north central Italy. Minor planets discovered: 55   [1] see

#5 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

#6 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

#7 Royal Observatory of Belgium

The Royal Observatory of Belgium ( French: Observatoire Royal de Belgique , Dutch : Koninklijke Sterrenwacht van België ), has been situated in the Uccle municipality of Brussels ( Belgium ) since 1890. It was first established in Saint-Josse-ten-Noode in 1826 by William I under the impulse of Adolp

#8 San Vittore Observatory

The San Vittore Observatory ( Italian : Osservatorio San Vittore , obs.   code : 522 ) is an astronomical observatory in Bologna , Italy. It has made numerous asteroid discoveries during 1980–2000. [1] Minor planets discovered: 99   [1] see §   List of discovered minor planets Observatory San Vittor

#9 Črni Vrh Observatory

The Črni Vrh Observatory ( Slovene : Observatorij Črni Vrh , IAU code : 106 ) is an astronomical observatory located in western Slovenia , close to the settlement of Črni Vrh , near the town of Idrija . The current observatory was built in 1985 and stands at an elevation of 730 metres (2,400   ft) .

#10 IceCube Neutrino Observatory

The IceCube Neutrino Observatory (or simply IceCube ) is a neutrino observatory constructed at the Amundsen–Scott South Pole Station in Antarctica . [1] The project is a recognized CERN experiment (RE10). [2] [3] Its thousands of sensors are located under the Antarctic ice, distributed over a cubic


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Meteorite / Meteorite


#1 Wolf 1061b

Wolf 1061b or WL 1061b [ citation needed ] is an exoplanet orbiting the red dwarf star Wolf 1061 in the Ophiuchus constellation , about 13.8 light years from Earth . It is the first planet in order from its host star in a triple planetary system , and has an orbital period of nearly 5 days. The plan

#2 Wolf 1061d

Wolf 1061d or WL 1061d [ citation needed ] is an exoplanet orbiting the red dwarf star Wolf 1061 in the Ophiuchus constellation , about 13.8 light years from Earth . It is the third and furthest planet in order from its host star in a triple planetary system , and has an orbital period of about 217

#3 HIP 116454 b

HIP 116454 b , or K2-2 b , [2] is an exoplanet orbiting the star HIP 116454 , 62 parsecs (201   ly ) from Earth toward the constellation Pisces . It is 32,000 kilometres (20,000   mi) in diameter and 12 times as massive as Earth. [3] [4] It was discovered by the NASA Kepler spacecraft, and is the fi


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Researcher / Researcher


#1 Roger Clifton Jennison

Roger Clifton Jennison (18 December 1922 – 29 December 2006) worked as a radio astronomer at Jodrell Bank under the guidance of Robert Hanbury Brown . Jennison made a number of discoveries in the field of radio astronomy , including the discovery of the double nature of radio source Cygnus A ( 3C 40

#2 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 §  

#3 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

#4 Ronald Kantowski

Ronald Kantowski (18 December 1939) is a theoretical cosmologist, well known in the field of general relativity as the author, together with Rainer K. Sachs , of the Kantowski–Sachs dust solutions to the Einstein field equation . These are a widely used family of inhomogeneous cosmological models .

#5 Masahiro Koishikawa

Masahiro Koishikawa ( 小石川 正弘 , Koishikawa Masahiro , 1952 – 26 August 2020) was a Japanese astronomer . He studied both major and minor planets, and discovered multiple asteroids . [2] Japanese astronomer (1952–2020) Masahiro Koishikawa Born 1952   ( 1952 ) Died August 26, 2020 (2020-08-26) (aged  

#6 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:

#7 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

#8 Virpi Niemelä

Virpi Sinikka Niemelä ( Helsinki , 26 December 1936 – Argentina , 18 December 2006) was a leading Finnish Argentine astronomer. She was the second Argentine to be elected for Associate of the Royal Astronomical Society . [1] Virpi Sinikka Niemelä Finnish-Argentine astronomer (1936–2006) Born in Finl

#9 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

#10 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

#11 Jean Baptiste Gaspard Bochart de Saron

Jean-Baptiste-Gaspard Bochart de Saron (16 January 1730 – 20 April 1794) was a French magistrate in the Parlement of Paris and an amateur astronomer, chemist and mathematician who took an interest in the orbits of comets. He was executed by guillotine during the Reign of Terror . De Saron was born i

#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 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

#14 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 §  

#15 Frank B. Zoltowski

Frank B. Zoltowski (born 1957) is an Australian amateur astronomer and prolific discoverer of minor planets who lives in Woomera , South Australia. In 1998, he was awarded a " Gene Shoemaker NEO Grant" for improved near-Earth object searches. [2] [3] Australian astronomer Frank B. Zoltowski Born 195

#16 Martin Mobberley

Martin P. Mobberley (born 1958) is a British amateur astronomer , [1] author, and former electronics engineer . This article has multiple issues. Please help improve it or discuss these issues on the talk page . ( Learn how and when to remove these template messages ) This biography of a living pers

#17 Allan Maconochie, Lord Meadowbank

The Hon Allan Maconochie, Lord Meadowbank FRSE FSA (Scot) (1748–1816) was a Scottish advocate , academic jurist, judge and agriculturalist. Lord Meadowbank Allan Maconochie, etching by Robert Dighton . Born ( 1748-01-26 ) 26 January 1748 Died 14 June 1816 (1816-06-14) (aged   68) Edinburgh Nationali

#18 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

#19 Felix Hormuth

Felix Hormuth (born 1975) is a German astronomer , working at the Max Planck Institute for Astronomy (MPIA) until 2016, and a prolific discoverer of minor planets . [2] [3] During his stay at the Calar Alto Observatory in Spain, he has discovered many asteroids, including a Jupiter trojan and two ne

#20 Edward L. G. Bowell

Edward L. G. "Ted" Bowell (born 1943 in London ), is an American astronomer . Bowell was educated at Emanuel School London, University College, London , and the University of Paris . American astronomer He was principal investigator of the Lowell Observatory Near-Earth-Object Search (LONEOS). He has


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Science / Science


#1 Hubble Deep Field

The Hubble Deep Field ( HDF ) is an image of a small region in the constellation Ursa Major , constructed from a series of observations by the Hubble Space Telescope . It covers an area about 2.6 arcminutes on a side, about one 24-millionth of the whole sky, which is equivalent in angular size to a


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Star / Star


#1 V705 Cassiopeiae

V705 Cassiopeiae , also known as Nova Cassiopeiae 1993 was a nova which erupted in the constellation Cassiopeia during 1993. The nova was discovered at 11:17 UT on 7 December 1993 by amateur astronomer Kazuyoshi Kanatsu of Matsue , Japan, who photographed it using a 35mm camera with a 55mm f/2.8 len

#2 SN 2007sr

SN 2007sr was a Type Ia supernova event that happened in the galaxy NGC 4038 . It was announced on December 18, 2007, but was visible on images beginning December 7. It peaked at magnitude 12.7 on December 14. [2] Type Ia supernova event in the galaxy NGC 4038 SN 2007sr Event type Supernova   Ia [1]


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