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langs: 4 января [ru] / january 4 [en] / 4. januar [de] / 4 janvier [fr] / 4 gennaio [it] / 4 de enero [es]

days: january 1 / january 2 / january 3 / january 4 / january 5 / january 6 / january 7

Asteroid / Asteroid


#1 (8201) 1994 AH2

(8201) 1994 AH 2 is a highly eccentric, rare-type asteroid , classified as near-Earth object of the Apollo group of asteroids, approximately 2 kilometers in diameter. It was discovered on 5 January 1994, by Australian amateur astronomer Gordon Garradd during the AANEAS survey at the Siding Spring Ob

#2 (144898) 2004 VD17

(144898) 2004 VD 17 , provisional designation 2004 VD 17 , is a sub-kilometer asteroid , classified as near-Earth object of the Apollo group once thought to have a low probability of impacting Earth on 4 May 2102. [3] It reached a Torino Scale rating of 2 and a Palermo Technical Impact Hazard Scale

#3 List of minor planets and comets visited by spacecraft

The following tables list all minor planets and comets that have been visited by robotic spacecraft . Number of minor planets and comets visited by spacecraft

#4 86 Semele

Semele ( minor planet designation : 86 Semele ) is a large and very dark main-belt asteroid with an orbital period of 5.5   years. It is rotating with a period of 16.6   hours, and varies in magnitude by 0.13 during each cycle. [4] This object is classified as a C-type asteroid and is probably compo

#5 2009 BD

2009 BD is a very small asteroid , approximately 10 meters in diameter, which is classified as near-Earth object of the Apollo group and as an Earth co-orbital asteroid . 2009 BD Discovery [1] Discovered   by Mount Lemmon Survey Discovery   site Catalina Mountains north of Tucson, Arizona , USA Disc

#6 (523731) 2014 OK394

(523731) 2014 OK 394 , also known as 1995 SN 55 , [4] is a trans-Neptunian object that orbits in the outer Solar System beyond the orbit of Neptune . First observed as 1995 SN 55 by Spacewatch on 20 September 1995, it was a lost minor planet with an insufficiently defined orbit with only 36 days of

#7 2016 AZ8

2016 AZ 8 is a sub-kilometer asteroid and near-Earth object of the Apollo group , at least 400 meters (1,300 feet) in diameter. [1] [3] It was first observed on 3 January 2016, by the WISE telescope with precovery images found back in 2012. 2016 AZ 8 Radar images of 2016 AZ 8 and its satellite by th

#8 2007 VK184

2007 VK 184 is a sub-kilometer asteroid , classified as a near-Earth object of the Apollo group , and estimated to be approximately 130 meters (430   ft) in diameter. [4] It was listed on the Sentry Risk Table with a Torino Scale rating of 1 for a potential impactor in June 2048. [4] It was removed

#9 4756 Asaramas

4756 Asaramas , provisional designation 1950 HJ , is a stony rare-type Eoan asteroid from the outer region of the asteroid belt , approximately 11 kilometers in diameter. It was discovered on 21 April 1950, by astronomers at the La Plata Astronomical Observatory in Argentina. [7] It is named for the

#10 2020 AP1

2020 AP 1 is an Apollo near-Earth object roughly 5 meters (20 feet) in diameter. On 2 January 2020 it passed 0.00218   AU (326   thousand   km ; 0.85   LD ) from Earth. With a short 1-day observation arc it was roughly expected to pass about 0.01   AU (1.5   million   km ; 3.9   LD ) from Earth on 7

#11 2019 AQ3

2019 AQ 3 is an inclined near-Earth object of the small Atira group from the innermost region of the Solar System , estimated to measure 1.4 kilometers (0.9 miles) in diameter. Among the hundreds of thousands known asteroids , 2019 AQ 3 's orbit was thought to have likely the smallest semi-major axi

#12 (5407) 1992 AX

(5407) 1992 AX , provisional designation 1992 AX , is a stony asteroid and a synchronous binary Mars-crosser from the innermost region of the asteroid belt , approximately 3.6 kilometers (2.2 miles) in diameter. It was discovered on 4 January 1992, by Japanese astronomers Seiji Ueda and Hiroshi Kane

#13 739 Mandeville

739 Mandeville is a minor planet located in the asteroid belt . Its absolute magnitude is 8.50. It was discovered on 7 February 1913 by Joel Hastings Metcalf in Winchester, Massachusetts , and assigned the provisional code 1913 QR . [3] A later, duplicate discovery was assigned the code 1963 HE . 73

#14 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

#15 6708 Bobbievaile

6708 Bobbievaile , provisional designation 1989 AA 5 , is a stony background asteroid and asynchronous binary system from the inner regions of the asteroid belt , approximately 8 kilometers (5 miles) in diameter. It was discovered on 4 January 1989, by Australian astronomer Robert McNaught at the Si

#16 4000 Hipparchus

4000 Hipparchus / h ɪ ˈ p ɑːr k ə s / is a dark background asteroid from the central regions of the asteroid belt , approximately 17 kilometers (11 miles) in diameter. It was discovered on 4 January 1989, by Japanese astronomers Seiji Ueda and Hiroshi Kaneda at the Kushiro Observatory on Hokkaido, J

#17 2020 BX12

2020 BX 12 is a sub-kilometer binary asteroid, classified as a near-Earth asteroid and potentially hazardous object of the Apollo group . It was discovered on 27 January 2020 by the Asteroid Terrestrial-impact Last Alert System survey at the Mauna Loa Observatory during its approach to Earth of 0.02

#18 19738 Calinger

19738 Calinger , provisional designation 2000 AS 97 , is a background asteroid from the inner regions of the asteroid belt , approximately 3 kilometers in diameter. 19738 Calinger Discovery [1] Discovered   by LINEAR Discovery   site Lincoln Lab's ETS Discovery   date 4 January 2000 Designations MPC

#19 16 Psyche

16 Psyche ( / ˈ s aɪ k iː / ) is a large M-type asteroid discovered by the Italian astronomer Annibale de Gasparis , working in Naples, on 17   March 1852 and named after the Greek mythological figure Psyche . [10] The prefix "16" signifies that it was the sixteenth minor planet in order of discover

#20 158 Koronis

Koronis ( minor planet designation : 158 Koronis ) is a main-belt asteroid that was discovered by Russian astronomer Viktor Knorre on January 4, 1876, from the Berlin observatory . [1] It was the first of his four asteroid discoveries. The meaning of the asteroid name is uncertain, but it may come f


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Comet / Comet


#1 98P/Takamizawa

98P/Takamizawa is a periodic comet in the Solar System . Periodic comet with 7 year orbit 98P/Takamizawa Discovery Discovered by Kesao Takamizawa Discovery date July 30, 1984 Alternative designations 1984 VII; 1991 XIII Orbital characteristics A Epoch March 6, 2006 Aphelion 5.932 AU Perihelion 1.663

#2 85D/Boethin

Comet Boethin (officially 85D/Boethin ) was a periodic Jupiter-family comet discovered in 1975 by Leo Boethin. It appeared again in January 1986 as expected. Although the comet was next expected at perihelion in April 1997, no observations were reported, and the comet is thought to have disintegrate

#3 C/2017 T1 (Heinze)

C/2017 T1 (Heinze) is a near parabolic comet that passed closest to Earth on January 4, 2018, at a distance of 0.22 AU. It was discovered on 10/2/2017 by Ari Heinze of the University of Hawaiʻi . Perihelion is on February 21, 2018, and it is expected peak magnitude about 8.8. [1] C/2017 T1 (Heinze)

#4 P/2010 B2 (WISE)

P/2010 B2 (today 412P/WISE) is a periodic comet in the Solar System . It is the first comet discovered by the space observatory WISE and was first observed on January 22, 2010 [1] and has since been followed by ground observatories, among them the Mauna Kea Observatory . [2] P/2010 B2 (WISE) P/2010


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Galaxy / Galaxy


#1 Crab Nebula

The Crab Nebula (catalogue designations M 1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus . The common name comes from William Parsons, 3rd Earl of Rosse , who observed the object in 1842 using a 36-inch (91   cm) telescope and produced a drawing t

#2 NGC 1981

NGC 1981 (also known as OCL 525 ) is an open cluster which is located in the Orion constellation. It was discovered by John Herschel on 4 January 1827. Its apparent magnitude is 4.2 [3] and its size is 28.00 arc minutes . It lies to the north of the Orion Nebula , separated from it by the Sh2-279 re


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Institution / Institution


#1 American Astronomical Society 215th meeting

The 215th meeting of the American Astronomical Society (AAS) took place in Washington, D.C. , Jan. 3 to Jan. 7, 2010. It is one of the largest astronomy meetings ever to take place as 3,500 astronomers and researchers were expected to attend and give more than 2,200 scientific presentations. The mee

#2 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

#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 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

#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 Perth Observatory

The Perth Observatory is the name of two astronomical observatories located in Western Australia (WA). In 1896, the original observatory was founded in West Perth on Mount Eliza overlooking the city of Perth (obs. code 319 ). Due to the city's expansion, the observatory moved to Bickley in 1965. The

#7 Jura Observatory

The Jura Observatory ( French : Observatoire astronomique jurassien ) is an astronomical observatory owned and operated by the Jura Astronomy Society ( French: Société Jurassienne d'Astronomie ; SJA). Built in 1993/1998, it is located near Vicques in the Canton of Jura , Switzerland . Its IAU observ

#8 Asociación Argentina Amigos de la Astronomía

Asociación Argentina Amigos de la Astronomía ( AAAA , A.A.A.A. or asaramas ; the Argentinian Association of the Friends of Astronomy ; obs   code : 834 ) is an amateur astronomy civil association based on Buenos Aires , Argentina , with the aim of spreading astronomy. [1] It was founded on January 4

#9 LIGO

The Laser Interferometer Gravitational-Wave Observatory ( LIGO ) is a large-scale physics experiment and observatory designed to detect cosmic gravitational waves and to develop gravitational-wave observations as an astronomical tool. [1] Two large observatories were built in the United States with

#10 List of solar eclipses visible from Ukraine

This list of solar eclipses seen from Ukraine enumerates the solar eclipses that were seen and will be seen in Ukraine . 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 20th 21st

#11 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) .


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Meteorite / Meteorite


#1 Kepler-6b

Kepler-6b is an extrasolar planet in the orbit of the unusually metal-rich Kepler-6 , a star in the field of view of the NASA -operated Kepler spacecraft, which searches for planets that cross directly in front of, or transit , their host stars. It was the third planet to be discovered by Kepler. Ke

#2 Kepler-8b

Kepler-8b is the fifth of the first five exoplanets discovered by NASA 's Kepler spacecraft , which aims to discover planets in a region of the sky between the constellations Lyra and Cygnus that transit (cross in front of) their host stars. [4] [6] The planet is the hottest of the five. [7] Kepler-

#3 CoRoT-1b

CoRoT-1b [2] (previously named CoRoT-Exo-1b ) [1] is a transiting extrasolar planet approximately 2,630 light-years away in the constellation of Monoceros . The planet was discovered orbiting the yellow dwarf star CoRoT-1 in May 2007. The planet was the first discovery by the French-led CoRoT Missio

#4 OGLE-TR-56b

OGLE-TR-56b is an extrasolar planet located approximately 1500 parsecs away in the constellation of Sagittarius , orbiting the star OGLE-TR-56 . This planet was the first known exoplanet to be discovered with the transit method . The object was discovered by the OGLE project, announced on July 5, 20

#5 Kepler-7b

Kepler-7b is one of the first five exoplanets to be confirmed by NASA 's Kepler spacecraft, and was confirmed in the first 33.5 days of Kepler's science operations. [2] It orbits a star slightly hotter and significantly larger than the Sun that is expected to soon reach the end of the main sequence

#6 Kepler-4b

Kepler-4b , initially known as KOI 7.01 , is an extrasolar planet first detected as a transit by the Kepler spacecraft . Its radius and mass are similar to that of Neptune ; however, due to its proximity to its host star, it is substantially hotter than any planet in the Solar System. [4] [6] The pl

#7 Kepler-5b

Kepler-5b is one of the first five planets discovered by NASA 's Kepler spacecraft. It is a Hot Jupiter that orbits a subgiant star that is more massive, larger, and more diffuse than the Sun is. Kepler-5 was first flagged as the location of a possibly transiting planet, and was reclassified as a Ke

#8 Kepler-40b

Kepler-40b , formerly known as KOI-428b , is a hot Jupiter discovered in orbit around the star Kepler-40 , which is about to become a red giant . The planet was first noted as a transit event by NASA 's Kepler spacecraft. The Kepler team made data collected by its satellite publicly available, inclu

#9 HD 156668 b

HD 156668 b is an extrasolar planet orbiting the star HD 156668 78.5 light-years away in the constellation Hercules . It has a minimum mass of 3.1 Earth masses. At the time of discovery it was the second least massive planet discovered by the radial velocity method after Gliese 581 e , subject to th


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Researcher / Researcher


#1 Henricus Brucaeus

Heinrich Brucaeus , also Heinrich van den Brock , sometimes falsely Heinrich Brucaeus of Aalst (1530 – 4 January 1593) was a German physician , astronomer and mathematician .

#2 Philipp Johann Heinrich Fauth

Philipp Johann Heinrich Fauth (19 March 1867 — 4 January 1941) was a German selenographer . Philipp Johann Heinrich Fauth

#3 Luigi Sannino

Luigi Sannino (born 1981) is an Italian amateur astronomer . He is credited by the Minor Planet Center with the discovery of two asteroids in collaboration with Paolo Pietrapiana at the Monte Viseggi Observatory. [1] Asteroids discovered   : 2 12575 Palmaria September 4, 1999 with Paolo Pietrapiana

#4 Augusto Testa

Augusto Testa (born 1950) is an Italian amateur astronomer and a discoverer of minor planets , observing at the Sormano Astronomical Observatory in northern Italy. According to the Minor Planet Center , he has discovered numerous asteroids during 1994–2000, all of them in collaboration with other as

#5 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

#6 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 §  

#7 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

#8 Charles Jasper Joly

Charles Jasper Joly (27 June 1864 – 4 January 1906) was an Irish mathematician and astronomer who became Royal Astronomer of Ireland . [1] [2] Irish mathematician and astronomer

#9 Max Wolf

Maximilian Franz Joseph Cornelius Wolf (21 June 1863 – 3 October 1932) was a German astronomer and a pioneer in the field of astrophotography . He was the chairman of astronomy at the University of Heidelberg and director of the Heidelberg-Königstuhl State Observatory from 1902 until his death in 19

#10 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

#11 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

#12 K. S. Krishnan

Sir Kariamanikkam Srinivasa Krishnan , FRS , [1] (4 December 1898   – 14 June 1961) was an Indian physicist . He was a co-discoverer of Raman scattering , [2] for which his mentor C. V. Raman was awarded the 1930 Nobel Prize in Physics . Indian physicist (1898–1961) Kariamanikkam Srinivasa Krishnan

#13 Rudolph Minkowski

Rudolph Minkowski (born Rudolf Leo Bernhard Minkowski / m ɪ ŋ ˈ k ɔː f s k i , - ˈ k ɒ f -/ ; [1] German: [mɪŋˈkɔfski] ; May 28, 1895 – January 4, 1976) was a German-American astronomer . [2] German-American astronomer Rudolph Minkowski Born ( 1895-05-28 ) May 28, 1895 Strasbourg , German Empire Die

#14 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

#15 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

#16 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

#17 Tom Stafford (astronomer)

Tom Stafford is an American astronomer who has discovered a number of asteroids since 1997, [1] including 12061 Alena , [2] 12533 Edmond , [3] 13436 Enid , [4] 13688 Oklahoma [5] and 15904 Halstead [6] at Zeno Observatory (observatory code 727) in Edmond, Oklahoma . He is the son of Joseph W. Staffo

#18 Wilhelm Beer

Wilhelm Wolff Beer (4 January 1797   – 27 March 1850) was a banker and astronomer from Berlin , Prussia , and the brother of Giacomo Meyerbeer . [1] This article needs additional citations for verification . ( September 2014 ) Wilhelm Beer Wilhelm Beer Born ( 1797-01-04 ) 4 January 1797 Berlin , Pru

#19 Anna Winlock

Anna Winlock (1857–1904) was an American astronomer and human computer , one of the first members of female computer group known as "the Harvard Computers ." She made the most complete catalog of stars near the north and south poles of her era. She is also remembered for her calculations and studies

#20 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


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Star / Star


#1 GW170104

GW170104 was a gravitational wave signal detected by the LIGO observatory on 4 January 2017. On 1 June 2017, the LIGO and Virgo collaborations announced that they had reliably verified the signal, making it the third such signal announced , after GW150914 and GW151226 , and fourth overall. [1] [2] G

#2 HD 156668

HD 156668 is a star in the northern constellation of Hercules constellation . With an apparent visual magnitude of 8.4 [2] it is too faint to be viewed with the naked eye, but it can be seen with even a small telescope. [5] The distance to this object has been determined directly using the parallax

#3 Kepler-4

Kepler-4 is a sunlike star located about 1610 light-years away in the constellation Draco . It is in the field of view of the Kepler Mission , a NASA operation purposed with finding Earth-like planets . Kepler-4b , a Neptune-sized planet that orbits extremely close to its star, was discovered in its

#4 Kepler-5

Kepler-5 is a star located in the constellation Cygnus in the field of view of the Kepler Mission , a NASA project aimed at detecting planets in transit of , or passing in front of, their host stars as seen from Earth . One closely orbiting, Jupiter -like planet, named Kepler-5b , has been detected

#5 Kepler-7

Kepler-7 is a star located in the constellation Lyra in the field of view of the Kepler Mission , a NASA operation in search of Earth-like planets . It is home to the fourth of the first five planets that Kepler discovered; this planet, a Jupiter -size gas giant named Kepler-7b , is as light as styr

#6 Kepler-6

Kepler-6 is a G-type star situated in the constellation Cygnus . The star lies within the field of view of the Kepler Mission , which discovered it as part of a NASA -led mission to discover Earth-like planets . The star, which is slightly larger, more metal-rich, slightly cooler, and more massive t

#7 Kepler-40

Kepler-40 , formerly known as KOI-428 , is an F-type star in the constellation Cygnus . Kepler-40 is known to host at least one planet, Kepler-40b . The star is approximately 1.5 times more massive than the Sun, and is over two times its size; it was, at upon its discovery, the largest yet discovere

#8 Kepler-8

Kepler-8 is a star located in the constellation Lyra in the field of view of the Kepler Mission , a NASA -led operation tasked with discovering terrestrial planets . The star, which is slightly hotter, larger, and more massive than the Sun , has one gas giant in its orbit, Kepler-8b . This gas giant


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