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gmackenz for the Astronomy Commons
A natural satellite or moon is a celestial body that orbit a planet or smaller body, which is called the primary. Technically, the term natural satellite could refer to a planet orbiting a star, or a dwarf galaxy orbiting a major galaxy, but it is normally synonymous with moon and used to identify...
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166 Moon topics matching:
Filter this Collection| x name | x image | x article |
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| x Moon |
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The Moon is the earth's companion satellite, though some astronomers believe that it approaches being a planet in its own right. The Moon is large enough for its gravity to affect the Earth, stabilising its orbit and producing the regular ebb and...
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| x Titan |
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Titan (pronounced /ˈtaɪtən/, or as Ancient Greek: Τῑτάν), or Saturn VI, is the largest moon of Saturn, the only moon known to have a dense atmosphere, and the only object other than Earth for which clear evidence of stable bodies of surface liquid...
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| x Phobos |
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Phobos (pronounced /ˈfoʊbəs/ FOE-bəs, or as Greek Φόβος) (systematic designation: Mars I) is the larger and closer of two small moons of Mars, the other being Deimos. It is named after the Greek god Phobos (which means "fear"), a son of Ares (Mars)....
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| x Deimos |
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Deimos (pronounced /ˈdaɪməs/ DYE-məs; also /ˈdiːməs/ DEE-məs, as in Greek Δείμος), is the smaller and outer of Mars’ two moons (the other being Phobos). It is named after Deimos, a figure representing dread in Greek Mythology. Its systematic...
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| x Triton |
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Triton is the largest moon of the planet Neptune, discovered on October 10, 1846 by William Lassell. It is the only large moon in the Solar System with a retrograde orbit, which is an orbit in the opposite direction to its planet's rotation. At 2700...
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| x Naiad |
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Naiad (pronounced /ˈneɪəd/ NAY-əd, /ˈnaɪəd/ NYE-əd, or as in Greek Ναϊάδ-ες), also known as Neptune III, is the innermost satellite of Neptune named after the Naiads of Greek legend.
Naiad was discovered sometime before mid-September, 1989 from the...
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| x Thalassa |
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Thalassa (pronounced /θəˈlæsə/ thə-LASS-ə, or as in Greek Θάλασσα), also known as Neptune IV, is the second innermost satellite of Neptune. Thalassa was named after a daughter of Aether and Hemera from Greek mythology. "Thalassa" is also the Greek...
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| x Despina |
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Despina (pronounced /dɨˈspiːnə/ dis-PEE-nə, sometimes /dɨˈspaɪnə/ dis-PYE-nə, or as in Latin Despœna, Greek Δέσποινα), also known as Neptune V, is the third closest inner satellite of Neptune. It is named after Despoina, a nymph who was a daughter...
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| x Galatea |
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Galatea (pronounced /ˈɡæləˈtiːə/ GAL-ə-TEE-ə, or as in Greek Γαλάτεια), also known as Neptune VI, is the fourth closest inner satellite of Neptune. It is named after Galatea, one of the Nereids of Greek legend.
Galatea was discovered in late July,...
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| x Larissa |
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Larissa (pronounced /ləˈrɪsə/ lə-RISS-ə, or as in Greek Λάρισα), also known as Neptune VII, is the fifth closest inner satellite of Neptune. It is named after Larissa, a lover of Poseidon (Neptune) in Greek mythology.
It was first discovered by...
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| x Proteus |
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Proteus (pronounced /ˈproʊtiəs/, or as in Greek Πρωτεύς), also known as Neptune VIII, is the second largest Neptunian moon, and Neptune's largest inner satellite. It is the largest known non-spherical moon in the solar system. It is named after...
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| x Nereid |
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Nereid (pronounced /ˈnɪəriɪd/; also /ˈnɛriɪd/, as in Greek Νηρηΐδα), also known as Neptune II, is a moon of Neptune.
Nereid was discovered on May 1, 1949 by Gerard P. Kuiper, who proposed the name in the report of his discovery. It is named after...
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| x Halimede |
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Halimede (pronounced /ˈhælɨˈmiːdi/ HAL-i-MEE-dee, or as in Greek Αλιμήδη) is a retrograde irregular satellite of Neptune. It was discovered by Matthew J. Holman et al. on August 14, 2002.
Halimede has the second most eccentric and third most...
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| x S/2002 N 2 |
Sao (pronounced /ˈseɪ.oʊ/ SAY-oh, or as in Greek Σαώ) is a prograde irregular satellite of Neptune. It was discovered by Matthew J. Holman et al. on August 14, 2002.
Sao orbits Neptune at a distance of about 22.4 million km and is about 44...
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| x S/2002 N 3 |
Laomedeia (pronounced /ˌleɪ.ɵmɨˈdiː.ə/ LAY-o-mə-DEE-ə, or /ˌleɪ.ɵmɨˈdaɪ.ə/ LAY-o-mə-DYE-ə, or as in Greek Λαομέδεια), also known as Neptune XII, is a prograde irregular satellite of Neptune. It was discovered by Matthew J. Holman, et al. on August...
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| x Psamathe |
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Psamathe, also known as Neptune X, is a retrograde irregular satellite of Neptune. The name is pronounced /ˈsæməθi/ SAM-ə-thee, or as in Latin Psamathē, Greek Ψαμάθη. It is named after Psamathe, one of the Nereids. This moon was discovered by Scott...
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| x Neso |
Neso (pronounced /ˈniːsoʊ/ NEE-soh, or as in Greek Νησώ), also known as Neptune XIII, is the outermost irregular natural satellite of Neptune. It was discovered by Matthew J. Holman, Brett J. Gladman, et al. on August 14, 2002, though it went...
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| x Rhea |
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Rhea (pronounced /ˈriːə/, or as Greek Ῥέᾱ) is the second-largest moon of Saturn and the ninth largest moon in the Solar System. It was discovered in 1672 by Giovanni Domenico Cassini.
Rhea is named after the Titan Rhea of Greek mythology, "mother of...
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| x Phoebe |
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Phoebe (pronounced /ˈfiːbiː/, or as Greek Φοίβη) is an irregular satellite of Saturn. It was discovered by William Henry Pickering on 17 March 1899 from photographic plates that had been taken starting on 16 August 1898 at Arequipa, Peru by DeLisle...
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| x Tethys |
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Tethys (pronounced /ˈtiːθɨs/, /ˈtɛθɨs/, or as Greek Τηθύς) is a moon of Saturn that was discovered by Giovanni Domenico Cassini in 1684.
Tethys is named after the titan Tethys of Greek mythology. It is also designated Saturn III or S III Tethys....
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| x Mimas |
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Mimas (pronounced /ˈmaɪməs/, or as Greek Μίμᾱς, rarely Μίμανς) is a moon of Saturn which was discovered in 1789 by William Herschel. It is named after Mimas, a son of Gaia in Greek mythology, and is also designated Saturn I.
By diameter, Mimas is...
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| x Calypso |
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Calypso (pronounced /kəˈlɪpsoʊ/ kə-LIP-soh, or as in Greek Καλυψώ) is a moon of Saturn. It was discovered by Pascu, Seidelmann, Baum and Currie in 1980 from ground-based observations, and was provisionally designated S/1980 S 25. Several other...
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| x Io |
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Io (pronounced /ˈaɪ.oʊ/, or as Greek Ἰώ) is the innermost of the four Galilean moons of the planet Jupiter and, with a diameter of 3,642 kilometres, the fourth-largest moon in the Solar System. It was named after Io, a priestess of Hera who became...
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| x Ariel |
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Ariel (pronounced /ˈɛəriəl/) is a moon of Uranus discovered on 24 October 1851 by William Lassell. It was discovered at the same time as Umbriel.
Ariel is named after the leading sylph in Alexander Pope's poem The Rape of the Lock. It is also the...
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| x Callisto |
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Callisto (pronounced /kəˈlɪstoʊ/, or as Greek Καλλιστώ) is a moon of the planet Jupiter, discovered in 1610 by Galileo Galilei. It is the third-largest moon in the Solar System and the second largest in the Jovian system, after Ganymede. Callisto...
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| x Dione |
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Dione (pronounced /daɪˈoʊniː/, or as Greek Διώνη) is a moon of Saturn discovered by Cassini in 1684. It is named after the titan Dione of Greek mythology. It is also designated Saturn IV.
Cassini named the four moons he discovered (Tethys, Dione,...
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| x Iapetus |
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Iapetus (pronounced /aɪˈæpɨtəs/, or as Greek Ιαπετός), occasionally Japetus (pronounced /ˈdʒæpɨtəs/), is the third-largest moon of Saturn, and eleventh in the solar system, discovered by Giovanni Domenico Cassini in 1671. Iapetus is best known for...
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| x Atlas |
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Atlas (pronounced /ˈætləs/ AT-ləs, or as Greek Άτλας) is an inner satellite of Saturn.
Atlas was discovered by Richard Terrile in 1980 (some time before November 12) from Voyager photos and was designated S/1980 S 28. In 1983 it was officially named...
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| x Autonoe |
Autonoe (pronounced /ɔːˈtɒnɵʊiː/ aw-TON-o-ee, or as in Greek Αυτονόη), also known as Jupiter XXVIII, is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2001, and...
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| x Carpo |
Carpo (pronounced /ˈkɑrpoʊ/ KAR-poh, or as in Greek Καρπώ), also Jupiter XLVI, is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2003, and was provisionally...
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| x Ananke |
Ananke (pronounced /əˈnæŋki/ ə-NANG-kee, or as in Greek Ανάγκη) is a retrograde irregular satellite of Jupiter. It was discovered by Seth Barnes Nicholson at Mount Wilson Observatory in 1951 and is named after the mythological Ananke, the...
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| x Hegemone |
Hegemone (pronounced /hɨˈdʒɛməni/ hə-JEM-ə-nee, or as in Greek Ἡγεμόνη), also known as Jupiter XXXIX, is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2003, and...
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| x Euanthe |
Euanthe (pronounced /juˈænθi/ ew-AN-thee, Greek = Ευάνθη), also known as Jupiter XXXIII, is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2001, and...
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| x Pasithee |
Pasithee (pronounced /pəˈsɪθɨ.iː/ pə-SITH-ə-ee, spelling pronunciation /ˈpæsɨθiː/ PAS-ə-thee, or as in Greek Πασιθέα), also known as Jupiter XXXVIII, is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the...
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| x Metis |
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Metis (pronounced /ˈmiːtɨs/ MEE-təs, or as in Greek Μήτις), also known as Jupiter XVI, is the innermost moon of Jupiter. It was discovered in 1979 in images taken by Voyager 1, and was named in 1983 after the first wife of Zeus, Metis. Additional...
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| x Adrastea |
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Adrastea (pronounced /ˌædrəˈstiːə/ AD-rə-STEE-ə, or as in Greek Αδράστεια), also known as Jupiter XV, is the second by distance, and the smallest of the four inner moons of Jupiter. It was discovered in Voyager 2 probe photographs taken in 1979,...
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| x Amalthea |
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Amalthea (pronounced /ˌæməlˈθiːə/ AM-əl-THEE-ə, or as in Greek Αμάλθεια) is the third moon of Jupiter in order of distance from the planet. It was discovered on September 9, 1892, by Edward Emerson Barnard and named after Amalthea, a nymph in Greek...
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| x Thebe |
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Thebe (pronounced /ˈθiːbi/ THEE-bee, or as in Greek Θήβη), also known as Jupiter XIV, is the fourth of Jupiter's moons by distance from the planet. It was discovered by Stephen P. Synnott in images from the Voyager 1 space probe taken on March 5,...
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| x Europa |
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Europa (pronounced /jʊˈroʊpə/ ( listen); or as Greek Ευρώπη) is the sixth moon of the planet Jupiter. Europa was discovered in 1610 by Galileo Galilei (and possibly independently by Simon Marius), and named after a mythical Phoenician noblewoman,...
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| x Ganymede |
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Ganymede (pronounced /ˈɡænɨmiːd/, or as Greek Γανυμήδης) is a moon of Jupiter and the largest moon in the Solar System. Completing an orbit in roughly seven days, it is the seventh moon and third Galilean moon from Jupiter. Ganymede participates in...
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| x Themisto |
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Themisto (pronounced /θɨˈmɪstoʊ/ (from Greek: Θεμιστώ), also known as Jupiter XVIII, is a small prograde irregular satellite of Jupiter. It was discovered in 1975, lost, and then rediscovered in 2000.
Themisto was first discovered by Charles T....
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| x Leda |
Leda (pronounced /ˈliːdə/ LEE-də, or as in Greek Λήδα), also known as Jupiter XIII, is a prograde irregular satellite of Jupiter. It was discovered by Charles T. Kowal at the Mount Palomar Observatory on September 14, 1974, after three nights' worth...
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| x Himalia |
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Himalia (pronounced /haɪˈmeɪliə/ hye-MAY-lee-ə, or /hɪˈmɑːliə/ hi-MAH-lee-ə as in Greek ‘Ιμαλíα) is the largest irregular satellite of Jupiter, and the sixth largest overall. It was discovered by Charles Dillon Perrine at the Lick Observatory on...
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| x Lysithea |
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Lysithea (pronounced /laɪˈsɪθiə/ lye-SITH-ee-ə, /lɨˈsɪθiə/ li-SITH-ee-ə, or as in Greek Λυσιθέα) is a prograde irregular satellite of Jupiter. It was discovered by Seth Barnes Nicholson in 1938 at Mount Wilson Observatory and is named after the...
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| x Elara |
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Elara (pronounced /ˈɛlərə/ EL-ər-ə, or as in Greek Ελάρα) is a prograde irregular satellite of Jupiter. It was discovered by Charles Dillon Perrine at Lick Observatory in 1905. It is the eighth largest moon of Jupiter and is named after the mother...
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| x S/2000 J 11 |
S/2000 J 11 is the outermost prograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2000.
S/2000 J 11 is about 4 kilometres in diameter, and orbits Jupiter at an...
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| x S/2003 J 12 |
S/2003 J 12 is a natural satellite of Jupiter, and is the smallest known satellite in our solar system. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2003.
S/2003 J 12 is about 1 kilometre in...
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| x Euporie |
Euporie (pronounced /juːˈpɔrɨi/ ew-POR-ə-ee, /juːˈpɔriː/ ew-POR-ee, or as in Greek Ευπορίη), also known as Jupiter XXXIV, is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S....
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| x S/2003 J 3 |
S/2003 J 3 is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2003.
S/2003 J 3 is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 19...
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| x S/2003 J 18 |
S/2003 J 18 is a natural satellite of Jupiter. It was discovered by a team of astronomers led by Brett J. Gladman in 2003.
S/2003 J 18 is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 19,813 Mm in 569.728 days, at an...
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| x Thelxinoe |
Thelxinoe (pronounced /θɛlkˈsɪnɵʊi/ thelk-SIN-o-ee, or as in Greek Θελξινόη), also known as Jupiter XLII, is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2004...
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| x Helike |
Helike (pronounced /ˈhɛlɨki/ HEL-ə-kee, or as in Greek Ἑλίκη), also known as Jupiter XLV, is a moon of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2003, and given the temporary...
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| x Orthosie |
Orthosie (pronounced /ɔrˈθoʊsɨ.iː/ or-THOH-sə-ee or /ɔrˈθoʊsiː/ or-THOH-see; Greek = ?), also known as Jupiter XXXV, is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard...
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| x Iocaste |
Iocaste (pronounced /ˌaɪ.ɵˈkæsti/ EYE-o-KAS-tee, or as in Greek Ιοκάστη), also known as Jupiter XXIV, is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard...
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| x S/2003 J 16 |
S/2003 J 16 is a natural satellite of Jupiter. It was discovered by a team of astronomers led by Brett J. Gladman in 2003.
S/2003 J 16 is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 20,744 Mm in 610.362 days, at an...
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| x Praxidike |
Praxidike (pronounced /prækˈsɪdɨki/ prak-SID-ə-kee, or as in Greek Πραξιδίκη), also known as Jupiter XXVII, is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S....
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| x Harpalyke |
Harpalyke (pronounced /hɑrˈpælɨki/ har-PAL-ə-kee, or as in Greek Ἁρπαλύκη), also known as Jupiter XXII, is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard...
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| x Mneme |
Mneme (pronounced /ˈniːmi/ NEE-mee, or as in Greek Μνήμη), also known as Jupiter XL, is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard, et al. in 2003,...
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| x Hermippe |
Hermippe (pronounced /hərˈmɪpiː/ hər-MIP-ee; Greek Ερμίππη), or Jupiter XXX, is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2001, and given the temporary...
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| x Thyone |
Thyone (pronounced /θaɪˈoʊni/ thye-OH-nee, or as in Greek Θυώνη), also known as Jupiter XXIX, is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard, et al....
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