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langs: 31 мая [ru] / may 31 [en] / 31. mai [de] / 31 mai [fr] / 31 maggio [it] / 31 de mayo [es]

days: may 28 / may 29 / may 30 / may 31 / june 1 / june 2 / june 3


Asteroid / Asteroid


#1 732 Tjilaki

732 Tjilaki ( prov. designation : A912 HK or 1912 OR ) is a dark background asteroid , approximately 36 kilometers (22 miles) in diameter, located in the inner region of the asteroid belt . It was discovered by German astronomer Adam Massinger at the Heidelberg Observatory on 15 April 1912, and late

#2 2009 DD45

2009 DD 45 is a very small Apollo asteroid that passed near Earth at an altitude of 63,500   km (39,500   mi) on 2 March 2009 at 13:44 UTC . It was discovered by Australian astronomers with the Siding Spring Survey at the Siding Spring Observatory on 27 February 2009, only three days before its clos

#3 907 Rhoda

907 Rhoda is a large background asteroid from the central region of the asteroid belt , that measures approximately 75 kilometers (47 miles) in diameter. It was discovered on 12 November 1918, by astronomer Max Wolf at the Heidelberg Observatory in southwest Germany. [1] The dark C / X-type asteroid

#4 2011 SP189

2011 SP 189 is a small asteroid and Mars trojan orbiting near the L 5   point of Mars (60 degrees behind Mars on its orbit). [2] [3] [4] 2011 SP 189 Discovery Discovered   by Mt. Lemmon Survey Discovery   date 29 September 2011 Designations MPC   designation 2011 SP 189 Minor   planet category Marti

#5 783 Nora

783 Nora ( prov. designation : A914 FB or 1914 UL ) is a dark background asteroid from the inner regions of the asteroid belt . It was discovered by Austrian astronomer Johann Palisa at the Vienna Observatory on 18 March 1914. [1] The carbonaceous C-type asteroid has a longer-than average rotation p

#6 (458732) 2011 MD5

(458732) 2011 MD 5 is an Apollo near-Earth asteroid around 1.2 kilometers (0.75 miles) in diameter. It is the largest asteroid known to have passed closer than the Moon. [4] On 17 September 1918 the asteroid passed 0.00234   AU (350   thousand   km; 0.91   LD) from Earth [3] with a peak apparent mag

#7 716 Berkeley

716 Berkeley ( prov. designation : A911 OC or 1911 MD ) is a background asteroid from the central regions of the asteroid belt . It was discovered by Austrian astronomer Johann Palisa at the Vienna Observatory on 30 July 1911. [1] The stony S-type asteroid has a rotation period of 15.6 hours and mea

#8 940 Kordula

940 Kordula ( prov. designation : A920 TE or 1920 HT ) is a large and dark Cybele asteroid from the outermost region of the asteroid belt , approximately 80 kilometers (50 miles) in diameter. It was discovered on 10 October 1920, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observa

#9 921 Jovita

921 Jovita ( prov. designation : A919 RD or 1919 FV ) is a dark background asteroid , approximately 58 kilometers (36 miles) in diameter, located in the outer regions of the asteroid belt . It was discovered on 4 September 1919, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observat

#10 List of centaurs (small Solar System bodies)

The following is a list of centaurs , a group of non-resonant small Solar System bodies whose orbit around the Sun lie typically between the orbits of Jupiter and Neptune (5 to 30  AU ). Centaurs are minor planets with characteristics of comets , and often classified as such. The dynamical group is

#11 2020 QG

2020 QG , also known by its internal designation ZTF0DxQ , [3] is an Earth-crossing asteroid, a few meters in diameter. It belongs to the Apollo group , and passed above the surface of Earth approximately 2,950 kilometres (1,830   mi) away [lower-alpha 2] (less than half an Earth radius ) on 16 Augu

#12 701 Oriola

701 Oriola / ɒr ˈ r aɪ ə l ə / is a main belt asteroid . This C-type asteroid shows possible broad absorption which may be explained by either magnesium-rich amorphous pyroxene or crystalline silicate. This likely accounts for the relatively high albedo as an outer-belt asteroid. [2] 701 Oriola Disc

#13 1108 Demeter

1108 Demeter , provisional designation 1929 KA , is a dark asteroid from the inner regions of the asteroid belt , approximately 27 kilometers (17 miles) in diameter. It was discovered on 31 May 1929, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory near Heidelberg, G

#14 777 Gutemberga

777 Gutemberga ( prov. designation : A914 BF or 1914 TZ ) is a dark and large background asteroid , approximately 66 kilometers (41 miles) in diameter, from the outer regions of the asteroid belt . It was discovered by German astronomer Franz Kaiser at the Heidelberg-Königstuhl State Observatory on

#15 965 Angelica

965 Angelica ( prov. designation : A921 VB or 1921 KT ), is a large background asteroid from the outer regions of the asteroid belt , approximately 60 kilometers (37 miles) in diameter. It was discovered on 4 November 1921, by astronomer Johannes F. Hartmann at the La Plata Astronomical Observatory

#16 919 Ilsebill

919 Ilsebill ( prov. designation : A918 UD or 1918 EQ ) is a dark background asteroid from the central region of the asteroid belt . It was discovered on 30 October 1918, by astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory in southwest Germany. [1] The carbonaceous C-type asteroid

#17 2015 TB145

2015 TB 145 is a sub-kilometer asteroid , classified as near-Earth object and potentially hazardous asteroid of the Apollo group , approximately 650 meters (2,000 feet) in diameter. [3] It safely passed 1.27 lunar distances from Earth on 31 October 2015 at 17:01 UTC , [7] and passed by Earth again i

#18 174567 Varda

174567 Varda (provisional designation 2003 MW 12 ) is a binary trans-Neptunian planetoid of the resonant hot classical population of the Kuiper belt , located in the outermost region of the Solar System . [1] Its moon , Ilmarë , was discovered in 2009. [13] Trans-Neptunian object 174567 Varda Hubble

#19 2017 MB7

2017 MB 7 is a trans-Neptunian object and damocloid on a cometary -like orbit from the outer Solar System , approximately 6 kilometers (4 miles) in diameter. It was first observed on 22 June 2017 by the Pan-STARRS survey at Haleakala Observatory in Hawaii, United States. [1] This unusual object has

#20 941 Murray

941 Murray ( prov. designation : A920 TF or 1920 HV ) is a background asteroid , approximately 18 kilometers (11 miles) in diameter, located in the central region of the asteroid belt . It was discovered by Austrian astronomer Johann Palisa at the Vienna Observatory on 10 October 1920. [1] The X-typ


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Comet / Comet


#1 136P/Mueller

136P/Mueller , also known as Mueller 3 , is a periodic comet in the Solar System . Periodic comet with 8 year orbit 136P/Mueller Discovery Discovered by Jean Mueller Discovery date September 24, 1990 Alternative designations 1990 XIII; 1998 K4 Orbital characteristics A Epoch March 6, 2006 Aphelion 5

#2 C/2019 Y4 (ATLAS)

C/2019 Y4 (ATLAS) (or Comet ATLAS ) is a comet with a near-parabolic orbit discovered by the ATLAS survey on December 28, 2019. [3] Early predictions based on the brightening rate suggested that the comet could become as bright as magnitude 0 matching the brightness of Vega . [4] It received widespr

#3 73P/Schwassmann–Wachmann

73P/Schwassmann–Wachmann , also known as Schwassmann–Wachmann 3 , is a periodic comet that has a 5.4 year orbital period and that has been actively disintegrating since 1995. It last came to perihelion (closest approach to the Sun) in March 2017 when fragment 73P-BT was separating from the main frag

#4 36P/Whipple

36P/Whipple is a periodic comet in the Solar System . It is the lowest numbered Quasi-Hilda comet . [4] Periodic comet with 8 year orbit 36P/Whipple Discovery Discovered by Fred Lawrence Whipple Discovery date October 15, 1933 Alternative designations 1926 VIII; 1933 IV; 1941 III; 1948 VI; 1955 VIII

#5 164P/Christensen

164P/Christensen is a periodic comet in the Solar System . Periodic comet with 7 year orbit 164P/Christensen Discovery Discovered by Eric J. Christensen Discovery date December 21, 2004 Alternative designations P/2004 Y1 Orbital characteristics A Epoch March 6, 2006 Aphelion 5.619 AU Perihelion 1.65


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Galaxy / Galaxy


#1 Whirlpool Galaxy

The Whirlpool Galaxy , also known as Messier 51a , M51a , and NGC 5194 , is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus . [5] [6] [7] It lies in the constellation Canes Venatici , and was the first galaxy to be classified as a spiral galaxy. [8] Its distance is

#2 NGC 3184

NGC 3184 , the Little Pinwheel Galaxy, is a spiral galaxy approximately 40 million light-years away [2] in the constellation Ursa Major . It has two HII regions named NGC 3180 [3] and NGC 3181 . [4] Spiral galaxy in the constellation Ursa Major NGC 3184 NGC 3184 as observed with the Spitzer Space Te

#3 Messier 110

Messier 110 , or M110 , also known as NGC 205 , is a dwarf elliptical galaxy that is a satellite of the Andromeda Galaxy in the Local Group . [9] Satellite galaxy of the Andromeda Galaxy Messier 110 [1] Dwarf elliptical galaxy Messier 110 in Andromeda Observation data ( J2000 epoch ) Constellation A


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Institution / Institution


#1 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

#2 Camille Flammarion Observatory

The observatory was established in Juvisy-sur-Orge in 1883 by the French astronomer and author Camille Flammarion . In March 2010, the structure was classified as a historical monument by the French Ministry of Culture . The observatory belongs to the Société astronomique de France . Observatory Cam

#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 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

#5 David Dunlap Observatory

The David Dunlap Observatory ( DDO ) is an astronomical observatory site in Richmond Hill , Ontario, Canada. Established in 1935, it was owned and operated by the University of Toronto until 2008. It was then acquired by the city of Richmond Hill, which provides a combination of heritage preservatio

#6 Union Observatory

Union Observatory also known as Johannesburg Observatory ( 078 ) is a defunct astronomical observatory in Johannesburg , South Africa that was operated between 1903 and 1971. It is located on Observatory Ridge , the city's highest point at 1,808 metres altitude in the suburb Observatory . [1] [2] De

#7 Mohawk Valley Astronomical Society

On May 31, 1989, seven amateur astronomers held an organizational meeting in the Solar Classroom at Hamilton College in Clinton, New York, to plan the formation of an astronomy club. By-laws were prepared by Richard Somer, approved by the group, and the Mohawk Valley Astronomical Society was born. T

#8 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


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Researcher / Researcher


#1 Leland Cunningham

Leland Erskin Cunningham (February 10, 1904, in Wiscasset, Maine – May 31, 1989, in Richmond, California ) was an American astronomer and discoverer of minor planets . In a career spanning 50 years, he became an authority on orbit theory and on precise measurements of the orbits of comets, planets,

#2 David Matravers

David Matravers (26 September 1937 – 31 May 2022) was a British mathematician and cosmologist and Professor of Mathematics at the University of Portsmouth . His research interests were in Applied Mathematics and Theoretical Cosmology. British cosmologist (1937–2022) David Matravers 2017 Born 1937 Di

#3 Sylvain Arend

Sylvain Julien Victor Arend (6 August 1902 – 18 February 1992) was a Belgian astronomer born in Robelmont , Luxembourg province, Belgium . His main interest was astrometry . [2] Belgian astronomer Minor planets discovered: 51   [1] see §   List of discovered minor planets Together with Georges Rolan

#4 Ernest Leonard Johnson

Ernest Leonard Johnson (1891–1977) was a South African astronomer and a former staff member of the Union Observatory in Johannesburg, South Africa. He is known for the discovery of 18 asteroids between 1946–1951, as well as several comets . [1] On 25 August 1949, he discovered 48P/Johnson , a period

#5 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

#6 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

#7 Marc Buie

Marc William Buie ( / ˈ b uː i / ; born 1958) is an American astronomer and prolific discoverer of minor planets who works at the Southwest Research Institute in Boulder, Colorado in the Space Science Department. [1] Formerly he worked at the Lowell Observatory in Flagstaff, Arizona, and was the Sen

#8 Pietro De Martino

Pietro De Martino or Di Martino (31 May 1707 – 28 January 1746) was an Italian mathematician and astronomer . [1] Italian mathematician and astronomer Pietro Di Martino Born ( 1707-05-31 ) 31 May 1707 Faicchio , Campania Died 28 January 1746 (1746-01-28) (aged   38) Naples , Campania Nationality Ita

#9 Karen Jean Meech

Karen J. Meech (born 1959) is an American planetary astronomer at the Institute for Astronomy (IfA) of the University of Hawaii . [2] American astronomer Minor planets discovered: 9   [1] see §   List of discovered minor planets

#10 Nicolaus Copernicus

Nicolaus Copernicus ( / k oʊ ˈ p ɜːr n ɪ k ə s , k ə -/ ; [2] [3] [4] Polish : Mikołaj Kopernik ; [lower-alpha 2] Middle Low German : Niklas Koppernigk , German : Nikolaus Kopernikus ; 19 February 1473   – 24 May 1543) was a Renaissance polymath , active as a mathematician, astronomer, and Catholic

#11 Elis Strömgren

Svante Elis Strömgren (31 May 1870 – 5 April 1947) was a Swedish – Danish astronomer . Swedish–Danish astronomer Strömgren was born in 1870 in Helsingborg , in the Scania province of Sweden . He received his doctorate at Lund University in 1898, becoming docent there the same year. He worked at the

#12 Lilian Martin-Leake

Lilian Martin-Leake (17 March 1867, Paddington , England – 1962, Bideford , England) was a British astronomer , science teacher and scientific illustrator , and a member of British Astronomical Association (BAA). [1] She joined an expedition organized by the Association to observe the total eclipse

#13 Robert H. McNaught

Robert H. McNaught (born in Scotland in 1956) is a Scottish-Australian astronomer at the Research School of Astronomy and Astrophysics of the Australian National University (ANU). He has collaborated with David J. Asher of the Armagh Observatory . Scottish-Australian astronomer (born 1956) Minor pla

#14 John Broughton

John Broughton (born 1952) [2] is an Australian amateur astronomer and artist. He is among the most prolific discoverers of minor planets worldwide, credited by the Minor Planet Center with more than a thousand discoveries made between 1997 and 2008. [1] His observations are done at Reedy Creek Obse

#15 Eugène Cosserat

Eugène-Maurice-Pierre Cosserat (4 March 1866 – 31 May 1931) was a French mathematician and astronomer . French mathematician and astronomer Eugène-Maurice-Pierre Cosserat Born ( 1866-03-04 ) 4 March 1866 Amiens , France Died 31 May 1931 (1931-05-31) (aged   65) Toulouse , France Scientific career Fi

#16 Gabrielle Renaudot Flammarion

Gabrielle Renaudot Flammarion (née Renaudot ) (31 May 1877 – 28 October 1962) was a French astronomer . She worked at the Camille Flammarion Observatory at Juvisy-sur-Orge , France, and was General Secretary of the Société Astronomique de France . French astronomer She published work in the changing

#17 Daniel Akerib

Daniel S. Akerib (born June 19, 1962) is an American particle physicist and astrophysicist . He was elected in 2008 a fellow of the American Physical Society (APS). [1]

#18 Henry E. Holt

Henry E. Holt (27 September 1929 - 5 May 2019) [2] was an American astronomer and prolific discoverer of minor planets and comets , who has worked as a planetary geologist at the United States Geological Survey and Northern Arizona University . [3] American astronomer (1929–2019) For other people na

#19 Martin Schwarzschild

Martin Schwarzschild (May 31, 1912   – April 10, 1997) was a German-American astrophysicist. German-American astrophysicist Martin Schwarzschild Born ( 1912-05-31 ) May 31, 1912 Potsdam , German Empire Died April 10, 1997 (1997-04-10) (aged   84) Langhorne, Pennsylvania , United States Nationality G

#20 Francis Younghusband

Lieutenant Colonel Sir Francis Edward Younghusband , KCSI KCIE (31 May 1863 – 31 July 1942) was a British Army officer, explorer , and spiritual writer. He is remembered for his travels in the Far East and Central Asia ; especially the 1904 British expedition to Tibet , led by himself, and for his w


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Star / Star


#1 Antares

Antares is the brightest star in the constellation of Scorpius . It has the Bayer designation α Scorpii , which is Latinised to Alpha Scorpii . Often referred to as "the heart of the scorpion", Antares is flanked by σ Scorpii and τ Scorpii near the center of the constellation. Distinctly reddish whe

#2 SN 2011dh

SN 2011dh was a supernova in the Whirlpool Galaxy (M51). It was discovered on 31 May 2011, with an apparent magnitude 13.5. [4] and confirmed by several sources, including the Palomar Transient Factory . [5] A candidate progenitor was detected in Hubble Space Telescope images. [9] The progenitor may


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