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langs: 4 февраля [ru] / february 4 [en] / 4. februar [de] / 4 février [fr] / 4 febbraio [it] / 4 de febrero [es]

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

Asteroid / Asteroid


#1 (367789) 2011 AG5

(367789) 2011 AG 5 , provisional designation 2011 AG 5 , is a sub-kilometer asteroid , classified as near-Earth object and potentially hazardous asteroid of the Apollo group . [1] It has a diameter of about 140 meters (460   ft) . [4] It was removed from the Sentry Risk Table on 21 December 2012 and

#2 1239 Queteleta

1239 Queteleta ( kətlɛta ), provisional designation 1932 CB , is a dark background asteroid from the central regions of the asteroid belt , approximately 17 kilometers in diameter. It was discovered on 4 February 1932, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccl

#3 (574372) 2010 JO179

(574372) 2010 JO 179 , provisional designation : 2010 JO 179 , is a large, high-order resonant trans-Neptunian object in the outermost regions of the Solar System , approximately 700 kilometers (430 miles) in diameter. [4] Long-term observations suggest that the object is in a meta-stable 5:21 reson

#4 15415 Rika

15415 Rika , provisional designation 1998 CA 1 , is a bright background asteroid from the Florian region of the inner asteroid belt , approximately 3 kilometers (2 miles) in diameter. It was discovered on 4 February 1998, by Japanese astronomer Akimasa Nakamura at the Kuma Kogen Astronomical Observa

#5 (276033) 2002 AJ129

(276033) 2002 AJ 129 , provisional designation 2002 AJ 129 , is a Mercury-crossing asteroid . It has the ninth-smallest perihelion of all numbered asteroids, after asteroids such as 2000 BD 19 , 2004 UL , and 2008 XM . [6] It makes close approaches to all of the inner planets [3] and asteroid 4 Vest

#6 58534 Logos

58534 Logos , or as a binary system (58534) Logos-Zoe , [7] is a trans-Neptunian object and binary system from the classical Kuiper belt , approximately 77 kilometers (48 miles) in diameter. The bright cubewano belonged to the cold population and has a 66-kilometer sized companion named Zoe. [6] The

#7 1345 Potomac

1345 Potomac ( / p ə ˈ t oʊ m ə k / ( listen ) ), provisional designation 1908 CG , is a dark Hildian asteroid from the outermost regions of the asteroid belt , approximately 73 kilometers (45   mi) in diameter. It was discovered on 4 February 1908, by American astronomer Joel Metcalf at the Taunton

#8 1238 Predappia

1238 Predappia , provisional designation 1932 CA , is a dark Adeonian asteroid from the central regions of the asteroid belt , approximately 21 kilometers in diameter. It was discovered on 4 February 1932, by astronomer Luigi Volta at the Observatory of Turin in Pino Torinese, Italy. [15] It was lat

#9 1985 Hopmann

1985 Hopmann ( prov. designation : 1929 AE ) is a dark background asteroid in the outer regions of the asteroid belt . It was discovered on 13 January 1929, by astronomer Karl Reinmuth at Landessternwarte Heidelberg-Königstuhl in southern Germany. [10] The asteroid has a rotation period of 17.5 hour

#10 3724 Annenskij

3724 Annenskij , provisional designation 1979 YN 8 , is a stony Gefionian asteroid from the central regions of the asteroid belt , approximately 14 kilometers (9 miles) in diameter. It was discovered on 23 December 1979, by Soviet astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observato

#11 2011 CQ1

2011 CQ 1 is a meteoroid discovered on 4 February 2011 by Richard A. Kowalski , at the Catalina Sky Survey . [1] On the same day the meteoroid passed within 0.85 Earth radii ( 5,480 kilometers (3,410   mi) ) of Earth's surface, and was perturbed from the Apollo class to the Aten class of near-Earth

#12 7352 Hypsenor

7352 Hypsenor , provisional designation : 1994 CO , is a larger Jupiter trojan from the Trojan camp , approximately 48 kilometers (30 miles) in diameter. The tumbling Jovian asteroid is a slow rotator with an exceptionally long rotation period of 648 hours. It was discovered on 4 February 1994 by Ja

#13 1017 Jacqueline

1017 Jacqueline ( prov. designation : A924 CH or 1924 QL ) is a dark background asteroid from the central regions of the asteroid belt . It was discovered on 4 February 1924, by Russian-French astronomer Benjamin Jekhowsky at the Algiers Observatory , Algeria, in North Africa. [1] The carbonaceous C

#14 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

#15 52 Europa

Europa ( minor planet designation : 52 Europa ) is the 6th-largest asteroid in the asteroid belt , having a diameter of over 300   km, though it is not correspondingly massive. It is not round but is shaped like an ellipsoid of approximately 380×330×250   km. [4] It was discovered on 4 February 1858

#16 4501 Eurypylos

' 4501 Eurypylos / j ʊ ˈ r ɪ p ɪ l ə s / is a Jupiter trojan from the Greek camp , approximately 46 kilometers (29 miles) in diameter. It was discovered on 4 February 1989 by Belgian astronomer Eric Elst at ESO 's La Silla Observatory in Chile. [1] The dark Jovian asteroid has a short rotation perio

#17 272 Antonia

Antonia (minor planet designation: 272 Antonia ) is a main belt asteroid that was discovered by French astronomer Auguste Charlois on 4 February 1888 in Nice . 272 Antonia A three-dimensional model of 272 Antonia based on its light curve Discovery Discovered   by Auguste Charlois Discovery   date 4

#18 List of minor planets discovered using the WISE spacecraft

The following is a list of numbered minor planets discovered, co-discovered and re-discovered by the Wide-field Infrared Survey Explorer (WISE), a NASA infrared spaceborne observatory. As of July 2018, the list contains 4093 entries, accredited by the Minor Planet Center as discovered by "WISE". Not

#19 79360 Sila–Nunam

79360 Sila–Nunam , provisional designation 1997 CS 29 , is a cold [9] classical Kuiper belt object (cubewano) and binary system made up of components of almost equal size, called Sila and Nunam, orbiting beyond Neptune in the Solar System . The name of the system is the combined names of the two bod

#20 2007 TU24

2007 TU 24 is an Apollo near-Earth asteroid that was discovered by the Catalina Sky Survey in Arizona on 11 October 2007. Imaging radar has estimated that it is 250 meters (820   ft) in diameter. [3] The asteroid passed 554,209   kilometer (344,370   mile or 1.4- lunar distance ) [5] from Earth on 2


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Comet / Comet


#1 65P/Gunn

65P/Gunn is a periodic comet in the Solar System which has a current orbital period of 6.79 years. Periodic comet with 6 year orbit 65P/Gunn Discovery Discovered by James E. Gunn Discovery date October 17, 1970 Alternative designations 1969 II; 1976 III; 1982 X; 1989 XI; Orbital characteristics A Ep

#2 45P/Honda–Mrkos–Pajdušáková

45P/Honda–Mrkos–Pajdušáková is a short-period comet discovered by Minoru Honda December 3, 1948. [8] It is named after Minoru Honda , Antonín Mrkos , and Ľudmila Pajdušáková . The object revolves around the Sun on an elliptical orbit with a period of 5.25 years. [1] The nucleus is 1.3 kilometers in

#3 331P/Gibbs

331P/Gibbs (P/2012 F5) is a small periodic Encke-type and rare main-belt comet , discovered by American amateur astronomer Alex Gibbs . [2] 331P/Gibbs (P/2012 F5) Discovery Discovered by A. R. Gibbs ( Mount Lemmon Survey ) Discovery date March 22, 2012 Orbital characteristics A Epoch 4 February 2012

#4 Comet Lulin

Comet Lulin (official designation C/2007 N3 (Lulin) , Traditional Chinese :鹿林彗星) is a non-periodic comet . It was discovered by Ye Quanzhi and Lin Chi-Sheng from Lulin Observatory . [1] [2] [7] It peaked in brightness and arrived at perigee for observers on Earth on February 24, 2009, [8] at magnitu


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Galaxy / Galaxy


#1 NGC 3367

NGC 3367 is a barred spiral galaxy located in the constellation Leo . It is located at a distance of circa 120 million light years from Earth, which, given its apparent dimensions, means that NGC 3367 is about 85,000 light years across. It was discovered by William Herschel on March 19, 1784. [3] Ba

#2 NGC 133

NGC 133 is an open cluster in the constellation Cassiopeia . It was discovered by Heinrich d'Arrest on February 4, 1865. [2] Open cluster in the constellation Cassiopeia NGC 133 NGC 133 Observation data ( J2000 epoch ) Constellation Cassiopeia Right ascension 00 h 31 m 16.9 s [1] Declination +63 °  

#3 NGC 358

NGC 358 is a very small open cluster of four stars in the constellation of Cassiopeia . It was originally thought to be an unrelated asterism , but two of the members were found to have a similar distance of roughly 1700 light years, although the other two do not have well-constrained distances, so

#4 Orion Nebula

The Orion Nebula (also known as Messier 42 , M42 , or NGC 1976 ) is a diffuse nebula situated in the Milky Way , being south of Orion's Belt in the constellation of Orion . [b] It is one of the brightest nebulae and is visible to the naked eye in the night sky with apparent magnitude 4.0. It is 1,34


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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 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 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

#7 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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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 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 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

#4 David J. Asher

David J. Asher (born 1966, Edinburgh ) is a British astronomer, who works at the Armagh Observatory (IAU code 981) in Northern Ireland . [3] [4] [5] [6] He studied mathematics at Cambridge and received his doctorate from Oxford. [7] He is known for the meteor research that he conducts with Robert Mc

#5 Beth A. Brown

Beth A. Brown (February 4, 1969 – October 5, 2008) was a NASA astrophysicist with a research focus on X-ray observations of elliptical galaxies and black holes . She earned a Ph.D. in Astronomy from the University of Michigan in 1998, becoming the first African-American woman to do so. [1] NASA astr

#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 John Theophilus Boileau

Major General John Theophilus Boileau FRS (26 May 1805 – 7 November 1886) was a British army engineer who worked in India. He was involved in restoration of Mughal monuments including the Taj Mahal; designed several buildings in India including Christ Church in Shimla and St George's Church in Agra;

#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 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

#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 John Campbell Brown

John Campbell Brown OBE FRSE (4 February 1947 – 16 November 2019) was a Scottish astronomer who worked primarily in solar physics . He held the posts of Astronomer Royal for Scotland , the Regius Professor of Astronomy at the University of Glasgow , and honorary professorships at both the University

#12 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

#13 Kanak Saha

Kanak Saha is an Indian astrophysicist . He is an associate professor of astrophysics at Inter-University Centre for Astronomy and Astrophysics . His research interests include formation of galaxies in the early universe and their evolution. [1] The Council of Scientific and Industrial Research , th

#14 Albert Lancaster

Albert Benoît Marie Lancaster (1849–1908) was a Belgian astronomer and meteorologist . Belgian astronomer and meteorologist He was a contemporary of and assistant to Jean-Charles Houzeau . [1]

#15 Antonín Mrkos

Antonín Mrkos ( Czech pronunciation: [ˈantoɲiːn ˈmr̩kos] ) (27 January 1918, Střemchoví – 29 May 1996, Prague ) was a Czech astronomer . Czech astronomer Antonín Mrkos Minor planets discovered: 274   [1] see §   List of discovered minor planets

#16 Johann Nepomuk Krieger

Johann Nepomuk Krieger (4 February 1865, Unterwiesenbach – 10 February 1902, Sanremo ) was a draftsman and selenographer who produced detailed hand-drawn maps of the lunar surface at his Italian observatory. [1] [2] Johann Nepomuk Krieger Born ( 1865-02-04 ) 4 February 1865 Unterwiesenbach , Kingdom

#17 Charles Todd (pioneer)

Sir Charles Todd KCMG FRS FRAS FRMS FIEE [1] (7 July 1826 – 29 January 1910) worked at the Royal Greenwich Observatory 1841–1847 and the Cambridge University observatory from 1847 to 1854. He then worked on telegraphy and undersea cables until engaged by the government of South Australia as astronom

#18 Yuriy Drohobych

Yuriy Drohobych or Yuriy Kotermak [lower-alpha 1] (1450 in Drohobych – 4 February 1494 in Kraków ) was a Ruthenian philosopher, astronomer, writer, medical doctor, rector of the University of Bologna , and professor of Kraków Academy , and the first publisher of a Church Slavonic printed text. He is

#19 Benjamin Jekhowsky

Benjamin Jekhowsky ( Russian : Вениамин Павлович Жеховский , born 1881 in Saint-Petersburg (Russia), died in 1975, Encausse-les-Thermes (France)) was a Russian–French astronomer , born in Saint-Petersburg in a noble family of a Russian railroad official. Russian–French astronomer Benjamin Jekhowsky

#20 Joel Hastings Metcalf

Joel Hastings Metcalf (January 4, 1866 – February 23, 1925) was an American astronomer , humanitarian and minister . [2] Asteroids discovered: 41   [1] 525 Adelaide October 21, 1908 581 Tauntonia December 24, 1905 599 Luisa April 25, 1906 600 Musa June 14, 1906 602 Marianna February 16, 1906 603 Tim


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Star / Star


#1 GI Monocerotis

GI Monocerotis , also known as Nova Monocerotis 1918 , was a nova that erupted in the constellation Monoceros during 1918. It was discovered by Max Wolf on a photographic plate taken at the Heidelberg Observatory on 4 February 1918. At the time of its discovery, it had a photographic magnitude of 8.

#2 Trapezium Cluster

The Trapezium or Orion Trapezium Cluster , also known by its Bayer designation of Theta 1 Orionis , is a tight open cluster of stars in the heart of the Orion Nebula , in the constellation of Orion . It was discovered by Galileo Galilei . On 4 February 1617 he sketched three of the stars ( A , C and

#3 SN 2006X

SN 2006X was a Type Ia supernova about 65 million light-years away [1] in Messier 100 , a spiral galaxy in the constellation Coma Berenices . The supernova was independently discovered in early February 2006 by Shoji Suzuki of Japan and Marco Migliardi of Italy . Evolution of the Sodium line in the

#4 V1280 Scorpii

V1280 Scorpii (or Nova Scorpii 2007 Number 1 ) is the first of two novae that occurred in the constellation Scorpius during February 2007 (the second nova was the fainter V1281 Scorpii, which was discovered on 19 February 2007). Announced by the IAU in Electronic Telegram No. 835 and Circular No. 88


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