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| x name | x image | x Also known as | x article | x Subjects |
| 433 Eros |
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433 Eros (pronounced /ˈɪərɒs/ IRR-os) is the first discovered Near-Earth asteroid, named after the Greek god of love, Eros (Greek Ἔρως). It is an S-type asteroid approximately 34.4×11.2×11.2 km in size, the second-largest near-Earth asteroid (NEA)...
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| Comet Halley |
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Halley's Comet |
Halley's Comet or Comet Halley (officially designated 1P/Halley) is the most famous of the periodic comets, and is visible from Earth every 75 to 76 years. Many comets with long orbital periods may appear brighter and more spectacular, but Halley is...
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| 4 Vesta |
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4 Vesta is the second most massive object in the asteroid belt, with a mean diameter of about 530 km and an estimated mass of 9% of the mass of the entire asteroid belt. It was discovered by the German astronomer Heinrich Wilhelm Olbers on March 29,...
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| 4179 Toutatis |
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4179 Toutatis/1989 AC (pronounced /tuːˈtɑːtɨs/ too-taa'-tis) is an Apollo, Alinda, and Mars-crosser asteroid with a chaotic orbit produced by a 3:1 resonance with the planet Jupiter and 1:4 resonance with the planet Earth. Due to its very low...
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| 253 Mathilde |
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253 Mathilde (pronounced /məˈtɪldə/) is a main belt asteroid about 50 km in diameter that was discovered by Johann Palisa in 1885. It has a relatively elliptical orbit that requires more than four years to circle the Sun. This asteroid has an...
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| 16 Psyche |
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16 Psyche (pronounced /ˈsaɪkiː/ SYE-kee, or as in Greek: Ψυχή) is one of the ten most massive main belt asteroids. It is over 200 kilometers in diameter and contains a little less than 1% of the mass of the entire main asteroid belt. It is the most...
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| 2 Pallas |
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2 Pallas is the second asteroid to have been discovered, by astronomer Heinrich Wilhelm Matthäus Olbers on March 28, 1802. Pallas was at first considered a planet, as were the other early asteroids 1 Ceres, 3 Juno, and 4 Vesta, until the discovery...
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| Charon |
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Charon, discovered in 1978 at the United States Naval Observatory Flagstaff Station, is the largest satellite of the dwarf planet Pluto. Following the 2005 discovery of two other natural satellites of Pluto (Nix and Hydra), Charon may also be...
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| 2060 Chiron |
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2060 Chiron (pronounced /ˈkaɪrən/ KYE-rən, or as in Greek: Χείρων) is a planetoid in the outer Solar System. Discovered in 1977 by Charles T. Kowal (precovery images have been found as far back as 1895), it was the first known member of a new class...
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| 50000 Quaoar |
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50000 Quaoar is a binary trans-Neptunian object and dwarf planet candidate orbiting the Sun in the Kuiper belt. It was discovered on June 4, 2002 by astronomers Chad Trujillo and Michael Brown at the California Institute of Technology from images...
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| Comet Hyakutake |
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Hyakutake suisei |
Comet Hyakutake (Japanese pronunciation: [çakɯ̥take], formally designated C/1996 B2) is a comet, discovered on January 31, 1996, which passed very close to Earth in March of that year. It was dubbed The Great Comet of 1996; its passage near the...
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| Great Comet of 1996 | ||||
| Jodrell Bank |
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The Jodrell Bank Observatory (originally the Jodrell Bank Experimental Station, then the Nuffield Radio Astronomy Laboratories from 1966 to 1999) is an observatory that hosts a number of radio telescopes, and is part of the Jodrell Bank Centre for...
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| 5145 Pholus |
5145 Pholus (pronounced /ˈfoʊləs/ foe'-ləs, from Greek: Φόλος) is a Centaur (minor planetoid) of the solar system running in an eccentric orbit, with a perihelion less than Saturn's and aphelion greater than Neptune's. Pholus has not come within one...
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| 2003 QQ₄₇ |
2003 QQ47 (also written 2003 QQ47) is an asteroid which became famous briefly upon its discovery in late August 2003 when media outlets played up a preliminary report that it had a 1:250,000 chance of colliding with Earth on March 21, 2014.
A NASA...
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| 28978 Ixion |
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28978 Ixion is a Kuiper belt object discovered on May 22, 2001. Ixion is a plutino (an object that has a 2:3 orbital resonance with Neptune) and a potential dwarf planet; its estimated diameter of 800 km makes it the third largest plutino. It is...
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| 624 Hektor |
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624 Hektor (pronounced /ˈhektɔr/ HEK-tor) is the largest of the Jovian Trojan asteroids. It was discovered in 1907 by August Kopff.
Hektor is a D-type asteroid, dark and reddish in colour. It lies in Jupiter's leading Lagrangian point, L4, called...
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| 20000 Varuna |
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20000 Varuna is a large classical Kuiper Belt object (KBO) and a potential dwarf planet. It previously had the provisional designation 2000 WR106 and has been precovered in plates dating back to 1953.
Varuna is named after the Hindu deity, Varuṇa....
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| 5 Astraea |
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5 Astraea (pronounced /əˈstriːə/, or as Greek: Αστραία; written Astræa in the early literature) is a large main belt asteroid. Its surface is highly reflective (bright) and its composition is probably a mixture of nickel-iron with magnesium- and...
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| 90482 Orcus |
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90482 Orcus is a large Kuiper Belt object (KBO) with a large companion and is likely a dwarf planet. The discovery images of this object were acquired on February 17, 2004 by Michael Brown of Caltech, Chad Trujillo of the Gemini Observatory, and...
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| 944 Hidalgo |
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944 Hidalgo (pronounced /hɨˈdælɡoʊ/ hi-DAL-goh) is an unusual asteroid, and has the longest orbital period (13.77 years) of any asteroid in the traditional asteroid belt.
944 Hidalgo is a Centaur-like asteroid. (This designation is given to those...
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| 1620 Geographos |
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The asteroid 1620 Geographos (pronounced /dʒiːoʊˈɡræfɒs/) was discovered on September 14, 1951 at the Palomar Observatory by Albert Wilson and Rudolph Minkowski. It was originally given the provisional designation 1951 RA. Its name is attributed to...
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| 1998 KY26 |
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The asteroid 1998 KY26 (also written 1998 KY26) was discovered on June 2, 1998 by Spacewatch and observed until June 8 when it passed 800,000 kilometers (half a million miles) away from Earth (a little more than twice the Earth-Moon distance). It is...
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| 90377 Sedna |
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90377 Sedna is a trans-Neptunian object and a likely dwarf planet discovered by Michael Brown (Caltech), Chad Trujillo (Gemini Observatory) and David Rabinowitz (Yale University) on November 14, 2003. It is currently 88 AU from the Sun, about three...
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| 1992 QB1 |
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(15760) 1992 QB1 (also written (15760) 1992 QB1) was the first trans-Neptunian object to be discovered after Pluto and Charon. It was discovered in 1992 and is now classified as a cubewano, an object in the main Kuiper Belt. The term cubewano...
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| 21 Lutetia |
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21 Lutetia (pronounced /ljuːˈtiːʃiə/ lew-TEE-shee-ə, Latin: Lutētia) is a large main belt asteroid of the M spectral type, about 100 kilometers in diameter. It will be the subject of a flyby by the Rosetta space probe in 2010.
The name Lutetia...
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| 9969 Braille |
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9969 Braille is a small Mars crossing asteroid that orbits the Sun once every 3.58 years. It was discovered in 1992 by astronomers at Palomar observatory and later named after Louis Braille, the inventor of the writing system for the blind. It was...
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| 6 Hebe |
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6 Hebe (pronounced /ˈhiːbiː/ HEE-bee, or as in Greek: ‘Ήβη) is a large Main belt asteroid, containing around half a percent of the mass of the belt. Its apparently high bulk density (greater than that of the Earth's Moon or even Mars), however,...
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| 133P/Elst-Pizarro |
Comet Elst-Pizarro is a remarkable body in that it displays characteristics of both asteroids and comets , and is the prototype of main-belt comets. Its orbit keeps it within the asteroid main belt, while it displays a dust tail like a comet while...
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| 2685 Masursky |
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The asteroid 2685 Masursky is a main belt asteroid. It was discovered by Edward (Ted) Bowell in 1981. It was named after Harold Masursky (1923–1990), a planetary geologist at the U.S. Geological Survey, Flagstaff, who worked on numerous space...
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| 45 Eugenia |
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45 Eugenia (pronounced /juˈdʒiːniə/ ew-JEE-nee-ə) is a large Main belt asteroid. It is famed as one of the first asteroids to be found to have a moon orbiting it. It is also the second known triple asteroid, after 87 Sylvia.
Eugenia was discovered...
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| Petit-Prince |
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(45) Eugenia I Petit-Prince (French pronunciation: [pətipʁɛ̃s]) is the larger, outer moon of asteroid 45 Eugenia. It was discovered in 1998 by astronomers at the Canada-France-Hawaii Telescope on Mauna Kea, Hawaii. Initially, it received the...
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| 511 Davida |
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511 Davida (pronounced /dəˈviːdə/ də-VEE-də) is a large main belt C-type asteroid. It was discovered by R. S. Dugan in 1903. It is thought to be one of the ten most massive asteroids. It is approximately 270–310 km in diameter and comprises an...
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| 1036 Ganymed |
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1036 Ganymed (pronounced /ˈɡænɨmɛd/) is the largest Amor asteroid, at about 32 km in diameter. It was discovered by Walter Baade on October 23, 1924 and is named after Ganymede, the Trojan prince turned god whom Zeus designated the cupbearer to the...
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| 719 Albert |
719 Albert is a Mars-crossing, Amor asteroid; it was the second one discovered after 433 Eros.
Discovered in 1911 by Johann Palisa, the asteroid was named after one of the Imperial Observatory in Vienna's major benefactors, Albert Salomon von...
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| 25143 Itokawa |
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25143 Itokawa (pronounced /ˌiːtoʊˈkɑːwə/, Japanese イトカワ, from 糸川) is an Apollo and Mars-crosser asteroid. It was the first asteroid to be the target of a sample return mission, the Japanese space probe Hayabusa.
The asteroid was discovered in 1998...
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| 4660 Nereus |
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4660 Nereus (pronounced /ˈnɪəriəs/ nirr'-ee-əs; Greek Νηρέας) is a small (about 0.3 kilometres (0.19 mi) or ~1000 feet diameter) asteroid. It was discovered by Eleanor F. Helin on February 28, 1982, approximately 1 month after a near pass by the...
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| 1999 KW4 |
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(66391) 1999 KW4 (also written (66391) 1999 KW4) is an Aten and Mercury-crosser asteroid discovered by LINEAR in 1999.
1999 KW4 has a moon orbiting it. The moon, designated S/2001 (66391) 1 or '1999 KW4 Beta' is ~360 m in diameter, and orbits 1999...
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| 51 Nemausa |
51 Nemausa (pronounced /nɨˈmɔːzə/) is a large Main belt asteroid similar to 1 Ceres in composition. It was discovered in the city of Nîmes, France, after which it was named (in its Latin name). The discoverer was a certain "A. Laurent" who never...
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| 3325 TARDIS |
3325 TARDIS is a main belt asteroid that measures 29.66 km in diameter. It was discovered by Brian A. Skiff in May, 1984 at the Lowell Observatory in Flagstaff, Arizona. It is named after the TARDIS, the time travel vehicle used by the Doctor in the...
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| 2801 Huygens |
2801 Huygens is a small main belt asteroid, which was discovered by Hendrik van Gent in 1935. It belongs to the Gefion family of asteroids. It is named after Christiaan Huygens, the Dutch astronomer, mathematician and physicist.
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| 7 Iris |
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7 Iris (pronounced /ˈaɪrɨs/ EYE-ris, or as in Greek: Ίρις) is a large main belt asteroid. Among S-type asteroids it ranks fifth in geometric mean diameter after Eunomia, Juno, Amphitrite and Herculina.
Its bright surface and small distance from the...
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| 9 Metis |
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9 Metis (pronounced /ˈmiːtɪs/ MEE-tiss, Greek: Μήτις) is one of the larger main belt asteroids. It is composed of silicates and metallic nickel-iron, and may be the core remnant of a large asteroid that was destroyed by an ancient collision. Metis...
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| 11 Parthenope |
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11 Parthenope (pronounced /pɑrˈθɛnəpiː/ par-THEN-ə-pee, Greek: Παρθενόπη) is a large, bright main belt asteroid.
Parthenope was discovered by Annibale de Gasparis on May 11, 1850, the second of his nine asteroid discoveries. It was named after one...
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| 12 Victoria |
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12 Victoria (pronounced /vɪkˈtɔəriə/, Latin: Uictōria) is a large Main belt asteroid.
It was discovered by J. R. Hind on September 13, 1850.
Victoria is officially named after the Roman goddess of victory, but the name also honours Queen Victoria of...
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| 13 Egeria |
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13 Egeria (pronounced /ɨˈdʒɪəriə/ i-JEER-ee-ə, or as in Latin: Ægeria) is a large Main belt G-type asteroid.
It was discovered by A. de Gasparis on November 2, 1850, and was named by Urbain J. J. Le Verrier, whose computations led to the discovery...
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| 14 Irene |
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14 Irene (pronounced /aɪˈriːniː/ eye-REE-nee, Greek: Ειρήνη) is a very large Main belt asteroid.
14 Irene was discovered by J. R. Hind on May 19, 1851, and named after Eirene, a personification of peace in Greek mythology. She was one of the Horae,...
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| 17 Thetis |
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17 Thetis (pronounced /ˈθiːtɪs/, Greek: Θέτις) is a large Main belt asteroid. It is an S-type asteroid, therefore giving it a relatively bright silicate surface.
It was discovered by R. Luther on April 17, 1852. It was his first asteroid discovery....
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| 18 Melpomene |
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18 Melpomene (pronounced /mɛlˈpɒmɨniː/ mel-POM-i-nee, or as in Greek: Μελπομένη) is a large, bright Main belt asteroid. It is composed of silicates and metals.
It was discovered by J. R. Hind on June 24, 1852 and named after Melpomene, the Muse of...
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| 19 Fortuna |
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19 Fortuna (pronounced /fɔrˈtjuːnə/, or as in Latin: Fortūna) is one of the largest main belt asteroids. It has a composition similar to 1 Ceres: a darkly colored surface that is heavily space weathered with the composition of primitive organic...
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| 23 Thalia |
23 Thalia (Greek: Θάλεια) is a large main belt asteroid. It was discovered by J. R. Hind on December 15, 1852 at the private observatory of W. Bishop, located in Hyde Park, London, England. Bishop named it after Thalia, the Muse of comedy and...
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| 27 Euterpe |
27 Euterpe (pronounced /juːˈtɜrpiː/ ew-TER-pee, or as in Greek: Ευτέρπη) is a large Main belt asteroid.
It was discovered by J. R. Hind on November 8, 1853 and named after Euterpe, the Muse of music in Greek mythology.
Euterpe is one of the...
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| 28 Bellona |
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28 Bellona (pronounced /bɛˈloʊnə/ be-LOH-nə, Latin: Bellōna) is a large main belt asteroid.
Bellona was discovered by R. Luther on March 1, 1854. It is named after Bellona, the Roman goddess of war; the name was chosen to mark the beginning of the...
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| 29 Amphitrite |
29 Amphitrite (pronounced /ˌæmfɨˈtraɪtiː/ am-fi-TRYE-tee, or as in Greek: Αμφιτρίτη) is one of the largest S-type asteroids, probably third in diameter after Eunomia and Juno, although Iris and Herculina are similar in size.
Its orbit is less...
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| 30 Urania |
30 Urania (pronounced /jʊˈreɪniə/, Greek: Ουρανία) is a large Main belt asteroid.
Urania was discovered by J. R. Hind on July 22, 1854. It was his last asteroid discovery. It is named after Urania, the Greek Muse of astrology.
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| 31 Euphrosyne |
31 Euphrosyne (pronounced /juːˈfrɒzɨniː/ ew-FROZ-i-nee, or as in Greek: Ευφροσύνη) is one of the largest main belt asteroids, discovered by James Ferguson on September 1, 1854. It was the first asteroid found from North America. It is named after...
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| 32 Pomona |
32 Pomona (pronounced /pəˈmoʊnə/, Latin: Pōmōna) is a main belt asteroid.
Pomona was discovered by H. Goldschmidt on October 26, 1854. It is named after Pomona, the Roman goddess of fruit trees.
Observations Australian amateur astronomer Jonathan...
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| 33 Polyhymnia |
33 Polyhymnia (pronounced /pɒliˈhɪmniə/ pol-ee-HIM-nee-ə) is a main belt asteroid.
It was discovered by J. Chacornac on October 28, 1854 and named after Polyhymnia, the Greek Muse of sacred hymns.
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| 35 Leukothea |
35 Leukothea (pronounced /ljuːˈkɒθiə/ lew-KOTH-ee-ə) is a large, dark main belt asteroid.
It was discovered by R. Luther on April 19, 1855 and named after Leukothea, a sea goddess in Greek mythology.
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| 36 Atalante |
36 Atalante (pronounced /ˌætəˈlæntiː/) is a large, dark main belt asteroid.
It was discovered by H. Goldschmidt on October 5, 1855 and named after the Greek mythological heroine Atalanta (of which Atalante is the German form).
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| 37 Fides |
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37 Fides (pronounced /ˈfaɪdiːz/ FYE-deez) is a large main belt asteroid.
It was discovered by R. Luther on October 5, 1855 and named after Fides, the Roman goddess of loyalty.
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