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langs: 31 июля [ru] / july 31 [en] / 31. juli [de] / 31 juillet [fr] / 31 luglio [it] / 31 de julio [es]

days: july 28 / july 29 / july 30 / july 31 / august 1 / august 2 / august 3

Asteroid / Asteroid


#1 154 Bertha

Bertha ( minor planet designation : 154 Bertha ) is a main-belt asteroid . It was discovered by the French brothers Paul Henry and Prosper Henry on 4 November 1875, but the credit for the discovery was given to Prosper. It is probably named after Berthe Martin-Flammarion , sister of the astronomer C

#2 615 Roswitha

615 Roswitha is a minor planet orbiting the Sun . Main-belt asteroid 615 Roswitha Discovery Discovered   by August Kopff Discovery   site Heidelberg Discovery   date 11 October 1906 Designations MPC   designation (615) Roswitha Alternative designations 1906 VR Orbital characteristics [1] Epoch 31 Ju

#3 233 Asterope

Asterope ( minor planet designation : 233 Asterope ) is a large main-belt asteroid that was discovered on 11 May 1883, by French astronomer Alphonse Borrelly at Marseille Observatory in Marseille, France. The asteroid was named after Asterope (or Sterope), one of the Pleiades . 233 Asterope Discover

#4 622 Esther

622 Esther is a minor planet orbiting the Sun . 622 Esther Discovery Discovered   by Joel Hastings Metcalf Discovery   site Taunton, Massachusetts Discovery   date 13 November 1906 Designations MPC   designation (622) Esther Named after Esther (biblical figure) [1] Alternative designations 1906 WP M

#5 677 Aaltje

677 Aaltje is a main-belt minor planet orbiting the Sun , discovered by August Kopff at Heidelberg on January 18, 1909. It was named after the Dutch singer Aaltje Noordewier-Reddingius . 677 Aaltje Discovery Discovered   by August Kopff Discovery   site Heidelberg Discovery   date 18 January 1909 De

#6 217 Eudora

Eudora ( minor planet designation : 217 Eudora ) is a large Main belt asteroid . It was discovered by French (Corsican) astronomer J. Coggia on August 30, 1880, in Marseilles , France. It was his fourth asteroid discovery and is named after Eudora , a Hyad in Greek mythology . 217 Eudora Discovery D

#7 899 Jokaste

899 Jokaste is a minor planet orbiting the Sun . It was one of five minor planets included in the 1993 study, Transition Comets -- UV Search for OH Emissions in Asteroids , which was research involving amateur astronomers who were permitted to make use of the Hubble Space Telescope. Not to be confus

#8 643 Scheherezade

643 Scheherezade is a minor planet orbiting the Sun . It was named after the fictional storyteller Sheherazad . 643 Scheherezade Modeled shape of Scheherezade Discovery Discovered   by August Kopff Discovery   site Heidelberg Obs. Discovery   date 8 September 1907 Designations MPC   designation (643

#9 945 Barcelona

945 Barcelona is a minor planet orbiting the Sun in the Asteroid belt . It was discovered 3 February 1921 from Barcelona by the Catalan astronomer Josep Comas i Solà (1868–1937) and named for the city of Barcelona ( Spain ), the birthplace of the discoverer. It has an estimated diameter of 25.5   km

#10 533 Sara

Sara ( minor planet designation : 533 Sara ) is a minor planet orbiting the Sun . This article needs additional citations for verification . ( May 2016 ) 533 Sara Modelled shape of Sara from its lightcurve Discovery Discovered   by Raymond Smith Dugan Discovery   site Heidelberg Discovery   date 19

#11 499 Venusia

Venusia ( minor planet designation : 499 Venusia ) is an asteroid in the outer asteroid belt , discovered by Max Wolf in 1902. [3] Its diameter is 81   km (50.6 miles). [4] It is a dark P-type asteroid . It has an average distance from the Sun of 4   AU (600   million   km ) . [2] 499 Venusia A thre

#12 195 Eurykleia

Eurykleia ( minor planet designation : 195 Eurykleia ) is a fairly large main belt asteroid . It was discovered by the Austrian astronomer Johann Palisa on April 19, 1879, and named after Euryclea , the wet-nurse of Odysseus in The Odyssey . Main-belt asteroid 195 Eurykleia Discovery Discovered   by

#13 264 Libussa

Libussa ( minor planet designation : 264 Libussa ) is a Main belt asteroid that was discovered by C. H. F. Peters on December 22, 1886, in Clinton, New York and was named after Libussa , the legendary founder of Prague . [3] It is classified as an S-type asteroid . 264 Libussa A three-dimensional mo

#14 833 Monica

833 Monica is a minor planet orbiting the Sun . Measurements of the lightcurve made in 2010 give a rotation period of 12.09 ± 0.01 hours. It has a diameter of 21.2   km. [2] 833 Monica Discovery Discovered   by Max Wolf Discovery   site Heidelberg Discovery   date 20 September 1916 Designations MPC

#15 880 Herba

880 Herba is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on 22 July 1917 in Heidelberg . 880 Herba Discovery Discovered   by Max Wolf Discovery   site Heidelberg Observatory Discovery   date 22 July 1917 Designations MPC   designation (880) Herba Pronunciation /

#16 162 Laurentia

162 Laurentia is a large and dark main-belt asteroid that was discovered by the French brothers Paul Henry and Prosper Henry on 21 April 1876, and named after Joseph Jean Pierre Laurent , an amateur astronomer who discovered asteroid 51 Nemausa . Main-belt asteroid 162 Laurentia A three-dimensional

#17 452 Hamiltonia

Hamiltonia ( minor planet designation : 452 Hamiltonia ) is an asteroid . It was discovered by James Edward Keeler on 6 December 1899, but was then lost until 1981. Its provisional name was 1899 FD . The asteroid is named for Mount Hamilton , the site of Lick Observatory where Keeler was working whe

#18 493 Griseldis

Griseldis ( minor planet designation : 493 Griseldis ) is a fairly dark main-belt asteroid 46   km in diameter. [1] 493 Griseldis Discovery Discovered   by Max Wolf Discovery   site Heidelberg Discovery   date 7 September 1902 Designations MPC   designation (493) Griseldis Pronunciation / ɡ r ɪ ˈ z

#19 101 Helena

Helena ( minor planet designation : 101 Helena ) is a large, rocky main-belt asteroid . It was discovered by Canadian-American astronomer J. C. Watson on August 15, 1868, [4] and was named after Helen of Troy in Greek mythology . Main-belt asteroid Not to be confused with Helene (moon) . 101 Helena

#20 292 Ludovica

Ludovica ( minor planet designation : 292 Ludovica ) is a Main belt asteroid . 292 Ludovica Discovery Discovered   by Johann Palisa Discovery   date 25 April 1890 Designations MPC   designation (292) Ludovica Alternative designations 1930 GM Minor   planet category Main belt Orbital characteristics


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Book / Book


#1 NASA Exoplanet Science Institute

The NASA Exoplanet Science Institute (NExScI) is part of the Infrared Processing and Analysis Center (IPAC) and is on the campus of the California Institute of Technology (Caltech) in Pasadena, CA . NExScI was formerly known as the Michelson Science Center and before that as the Interferometry Scien


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Comet / Comet


#1 Tempel 1

Tempel 1 (official designation: 9P/Tempel ) is a periodic Jupiter-family comet discovered by Wilhelm Tempel in 1867. It completes an orbit of the Sun every 5.5 years. Tempel 1 was the target of the Deep Impact space mission, which photographed a deliberate high-speed impact upon the comet in 2005. I

#2 104P/Kowal

104P/Kowal , also known as Kowal 2 , is a periodic Jupiter-family comet discovered by Charles T. Kowal in 1979. The orbit was confirmed after new sightings in 1991 and 1998. [2] Periodic comet with 6 year orbit 104P/Kowal Discovery Discovered by Charles T. Kowal Discovery date 13 January 1979 Altern

#3 Comet NEOWISE

C/2020 F3 (NEOWISE) or Comet NEOWISE is a long period comet with a near-parabolic orbit discovered on March 27, 2020, by astronomers during the NEOWISE mission of the Wide-field Infrared Survey Explorer (WISE) space telescope . At that time, it was an 18th-magnitude object, located 2   AU (300   mil

#4 C/2021 T4 (Lemmon)

C/2021 T4 (Lemmon) is an inbound long period comet discovered by the Mount Lemmon Observatory on 7 October 2021. [1] C/2021 T4 (Lemmon) Discovery Discovery date 7 October 2021 Alternative designations CK21T040, C6131F2 Orbital characteristics A Observation arc 140 days Perihelion 1.4823 AU Eccentric


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Galaxy / Galaxy


#1 NGC 6670

NGC 6670 is a pair of interacting galaxies within the Draco constellation, which lie around 401 million light-years from Earth . [3] Its shape resembles a leaping dolphin. [7] NGC 6670 was discovered by Lewis A. Swift on July 31, 1886. [1] NGC 6670 is a combination of two colliding disc galaxies whi

#2 CL1358+62

CL 1358+62 ( ClG 1358+62 ) is a galaxy cluster located at z=0.33 redshift . Behind the cluster (which itself lies at a distance of about 3.9 billion light years), lensed into a red arc is an infant galaxy ( CL 1358+62 G1 ) that was the farthest object in the observable universe for a few months. It


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Institution / Institution


#1 Višnjan Observatory

Višnjan Observatory ( Croatian : Zvjezdarnica Višnjan ; obs. code: 120 ) is an astronomical observatory located near the village of Višnjan in Croatia . It is headed by Korado Korlević , a prolific astronomer and discoverer of minor planets . In 2009, the Višnjan observatory moved to Tičan (at 45°17

#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 Sproul Observatory

Sproul Observatory was an astronomical observatory owned and operated by Swarthmore College . It was located in Swarthmore , Pennsylvania , United States , and named after William Cameron Sproul , the 27th Governor of Pennsylvania, who graduated from Swarthmore in 1891. The 24" telescope was moved f

#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 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 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

#8 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

#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 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

#11 Maui solar telescope protests

The Maui solar telescope protests are a series of protests and demonstrations attempting to block the construction of the Daniel K. Inouye Solar Telescope on the summit of Haleakalā in Maui, Hawaii . Opposition to the Maui solar telescope


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Researcher / Researcher


#1 Ibn al-Banna' al-Marrakushi

Ibn al‐Bannāʾ al‐Marrākushī , also known as Abu'l-Abbas Ahmad ibn Muhammad ibn Uthman al-Azdi ( Arabic : ابن البنّاء ) (29 December 1256 – c. 1321), was an Arab [1] mathematician , astronomer , Islamic scholar , Sufi , and a one-time astrologer . Arab mathematician and astronomer "Ibn al-Banna" redi

#2 James Hamilton (priest)

James Archibald Hamilton (1748–1815) FRIA , Irish cleric and astronomer , was born in the area of Athlone , Co. Westmeath , Ireland .

#3 Eugene Merle Shoemaker

Eugene Merle Shoemaker (April 28, 1928   – July 18, 1997) was an American geologist . He co-discovered Comet Shoemaker–Levy 9 with his wife Carolyn S. Shoemaker and David H. Levy . This comet hit Jupiter in July 1994: the impact was televised around the world. Shoemaker also studied terrestrial crat

#4 Ernst Meissel

Daniel Friedrich Ernst Meissel (31 July 1826, Eberswalde , Brandenburg Province – 11 March 1895, Kiel ) was a German astronomer who contributed to various aspects of number theory . German astronomer

#5 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

#6 Necia H. Apfel

Necia H. Apfel (born July 31, 1930) is an American astronomer , author and educator. [ citation needed ] American astronomer Necia H. Apfel Born ( 1930-07-31 ) July 31, 1930 (age   92) Education Tufts University , Northwestern University Occupation Astronomer , author, educator Children 2

#7 Edward Pigot

Edward Francis Pigot (18 September 1858 – 22 May 1929) was an Irish -born Australian Jesuit priest, seismologist and astronomer. He was president of the New South Wales branch of the British Astronomical Association in 1923-24 and a council member of the Royal Society of New South Wales from 1921 to

#8 Lenka Kotková

Lenka Kotková ( née Šarounová ; born 26 July 1973) is a Czech astronomer and a discoverer of minor planets . Czech astronomer, asteroid discoverer Lenka Kotková ( née Šarounová) Lenka Kotková at the Ondřejov Observatory Born ( 1973-07-26 ) 26 July 1973 (age   48) Dobřichovice , Czechoslovakia Nation

#9 Christoph Scheiner

Christoph Scheiner SJ (25 July 1573 (or 1575) – 18 June 1650) was a Jesuit priest, physicist and astronomer in Ingolstadt . Jesuit priest, physicist and astronomer (1573–1650) Oil on canvas portrait of Christoph Scheiner.

#10 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

#11 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

#12 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

#13 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 §  

#14 Carl Theodor Anger

Carl Theodor Anger ( Danzig , 31 July 1803 – Danzig, 25 March 1858) was a German mathematician and astronomer . [1] He was a student of and assistant to Friedrich Bessel at the Königsberg Observatory from 1827 until 1831. [2] Thereafter, he was appointed as astronomer by the Naturforschende Gesellsc

#15 Georges Meylan

Georges Meylan is a Swiss astronomer, born on July 31, 1950 in Lausanne , Switzerland . He was the first director of the Laboratory of Astrophysics of the Swiss Federal Institute of Technology (EPFL) in Lausanne , Switzerland , and now a professor emeritus of astrophysics and cosmology at EPFL . He

#16 Daniel Joseph Kelly O'Connell

Daniel Joseph Kelly O'Connell was a seismologist , astronomer and Jesuit priest who is particularly known for his work in observational astronomy. He worked primarily observing binary star systems , and was involved in photographing the Green Flash . [1] He was also the third president of the Pontif

#17 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

#18 Isabel Martin Lewis

Isabel Martin Lewis (July 11, 1881 – July 31, 1966) was an American astronomer who was the first woman hired by the United States Naval Observatory as assistant astronomer. In 1918, Lewis was elected a member of the American Astronomical Society . She was also a member of the Royal Astronomical Soci

#19 Cyril Jackson (astronomer)

Cyril V. Jackson (5 December 1903 – February 1988) was a South African astronomer , known for discovering 72 asteroids and a number of comets. South African astronomer Asteroids discovered: 72 1116 Catriona 5 April 1929 1186 Turnera 1 August 1929 1193 Africa 24 April 1931 1194 Aletta 13 May 1931 119

#20 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


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Star / Star


#1 SN 2004dj

SN 2004dj was the brightest supernova since SN 1987A at the time of its discovery. July 2004 supernova event in the constellation Camelopardalis This article does not cite any sources . ( December 2019 ) SN 2004dj Event type Supernova , high mass X-ray binary   II-P Date 31 July 2004 18:15 UTC Const

#2 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

#3 EL Aquilae

EL Aquilae , also known as Nova Aquilae 1927 was a nova that appeared in 1927. It was discovered by Max Wolf on photographic plates taken at Heidelberg Observatory on 30 and 31 July 1927 when it had a photographic magnitude of 9. Subsequent searches of plates taken at the Harvard College Observatory

#4 Delta Cancri

Delta Cancri ( δ Cancri , abbreviated Delta Cnc , δ Cnc ) is a double star about 180 light-years from the Sun in the constellation of Cancer . Orange giant star in the constellation Cancer δ Cancri (Natasia-Louise James) Location of δ Cancri (circled) Observation data Epoch J2000.0             Equin

#5 Sigma Librae

Sigma Librae ( σ Librae , abbreviated Sigma Lib , σ Lib ) is a binary star [11] in the constellation of Libra . The apparent visual magnitude is +3.29, [4] making it visible to the naked eye. Based upon parallax measurements, this system is at a distance of roughly 288 light-years (88 parsecs ) from

#6 Kelu-1

Kelu-1 / ˈ k eɪ l uː / is a system of two brown dwarfs of spectral types L2 and L4 [2] located in constellation Hydra at approximately 60.6 light-years from Earth . [4] It is among the first free-floating later-than-M-type brown dwarfs discovered, and sometimes considered as prototype of L-type brow


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