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Euporie (moon)
Euporie , also known as , 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 designation . Euporie is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 19.266 million km in 550.69 days, at an inclination of 145.7° to the ecliptic, in a retrograde direction and with an eccentricity of 0.148. It is affected by the Kozai mechanism. It was named in August 2003 after Euporie, a Greek goddess of abundance and one of the Horae in Greek mythology (and thus a daughter of Zeus Zeus (, ) is the chief deity of the List of Greek deities, Greek pantheon. He is a sky father, sky and thunder god in ancient Greek religion and Greek mythology, mythology, who rules as king of the gods on Mount Olympus. Zeus is the child ...). It is a member of the Ananke group. References Ananke group Moons of Jupiter Irregular satellites Disco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kozai Mechanism
In celestial mechanics, the Kozai mechanism is a dynamical phenomenon affecting the orbit of a binary system perturbed by a distant third body under certain conditions. The mechanism is also named von Zeipel-Kozai-Lidov, Lidov–Kozai, Kozai–Lidov, etc., and may be termed an ''effect'', ''oscillation'', ''cycle'', or ''resonance''. This effect causes the orbit's argument of pericenter to oscillate about a constant value, which in turn leads to a periodic exchange between its eccentricity and inclination. The process occurs on timescales much longer than the orbital periods. It can drive an initially near-circular orbit to arbitrarily high eccentricity, and ''flip'' an initially moderately inclined orbit between a prograde and a retrograde motion. The effect has been found to be an important factor shaping the orbits of irregular satellites of the planets, trans-Neptunian objects, extrasolar planets, and multiple star systems. It hypothetically promotes black hole mergers. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomical Objects Discovered In 2001
Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole. Astronomy is one of the oldest natural sciences. The early civilizations in recorded history made methodical observations of the night sky. These include the Egyptians, Babylonians, Greeks, Indians, Chinese, Maya, and many ancient indigenous peoples of the Americas. In the past, astronomy included disciplines as diverse as astrometry, celestial navigation, observatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discoveries By Scott S
Discoveries may refer to: Media Film and television * ''Discoveries'' (film), a 1939 British film * ''Discoveries'' (TV series), a Canadian youth science television series * "Discoveries", a Series D episode of the television series ''QI'' (2006) * "Discoveries" (''Hotel Portofino''), a 2022 TV episode Literature * ''Discoveries'' (Robertson Davies), a 2002 book by Robertson Davies * ''Abrams Discoveries'', a series of illustrated non-fiction books published by Harry N. Abrams * ''Discoveries'', a work by William Butler Yeats, written in 1907 * ''Discoveries'', a magazine published by Cedars-Sinai Medical Center Music * ''Discoveries'' (Cannonball Adderley album), 1955 * ''Discoveries'' (Josh Nelson album), 2011 * ''Discoveries'' (Northlane album), 2011 Other uses * Discoveries (horse), a racehorse See also * Age of Discoveries * Discovery (other) * Explorations (other) Exploration is the process of discovery. Exploration or explorations may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irregular Satellites
In astronomy, an irregular moon, irregular satellite, or irregular natural satellite is a natural satellite following an orbit that is irregular in some of the following ways: Distant; orbital inclination, inclined; orbital eccentricity, highly elliptical; Retrograde and prograde motion, retrograde. They have often been Asteroid capture, captured by their parent planet, unlike regular satellites formed in orbit around them. Irregular moons have a stable orbit, unlike temporary satellites which often have similarly irregular orbits but will eventually depart. The term does not refer to shape; Triton (moon), Triton, for example, is a planetary-mass moon, round moon but is considered irregular due to its orbit and origins. , 356 irregular moons are known, orbiting all four of the outer planets (Jupiter, Saturn, Uranus, and Neptune). The largest of each planet are Himalia (moon), Himalia of Jupiter, Phoebe (moon), Phoebe of Saturn, Sycorax (moon), Sycorax of Uranus, and Triton (moon), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moons Of Jupiter
There are 97 Natural satellite, moons of Jupiter with confirmed orbits . This number does not include a number of meter-sized moonlets thought to be shed from the inner moons, nor hundreds of possible kilometer-sized outer irregular moons that were only briefly captured by telescopes. All together, Jupiter's moons form a satellite system (astronomy), satellite system called the Jovian system. The most massive of the moons are the four Galilean moons: Io (moon), Io, Europa (moon), Europa, Ganymede (moon), Ganymede, and Callisto (moon), Callisto, which were independently discovered in 1610 by Galileo Galilei and Simon Marius and were Timeline of discovery of Solar System planets and their moons, the first objects found to orbit a body that was neither Earth nor the Sun. Much more recently, beginning in 1892, dozens of far smaller Jovian moons have been detected and have received the names of lovers (or other sexual partners) or daughters of the Roman mythology, Roman god Jupiter (m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zeus
Zeus (, ) is the chief deity of the List of Greek deities, Greek pantheon. He is a sky father, sky and thunder god in ancient Greek religion and Greek mythology, mythology, who rules as king of the gods on Mount Olympus. Zeus is the child of Cronus and Rhea (mythology), Rhea, the youngest of his siblings to be born, though sometimes reckoned the eldest as the others required disgorging from Cronus's stomach. In most traditions, he is married to Hera, by whom he is usually said to have fathered Ares, Eileithyia, Hebe (mythology), Hebe, and Hephaestus.Hard 2004p. 79 At the oracle of Dodona, his consort was said to be Dione (Titaness/Oceanid), Dione, by whom the ''Iliad'' states that he fathered Aphrodite. According to the ''Theogony'', Zeus's first wife was Metis (mythology), Metis, by whom he had Athena.Hesiod, ''Theogony'886900 Zeus was also infamous for his erotic escapades. These resulted in many divine and heroic offspring, including Apollo, Artemis, Hermes, Persephone, D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greek Mythology
Greek mythology is the body of myths originally told by the Ancient Greece, ancient Greeks, and a genre of ancient Greek folklore, today absorbed alongside Roman mythology into the broader designation of classical mythology. These stories concern the ancient Greek religion's view of the Cosmogony, origin and Cosmology#Metaphysical cosmology, nature of the world; the lives and activities of List of Greek deities, deities, Greek hero cult, heroes, and List of Greek mythological creatures, mythological creatures; and the origins and significance of the ancient Greeks' cult (religious practice), cult and ritual practices. Modern scholars study the myths to shed light on the religious and political institutions of ancient Greece, and to better understand the nature of mythmaking itself. The Greek myths were initially propagated in an oral tradition, oral-poetic tradition most likely by Minoan civilization, Minoan and Mycenaean Greece, Mycenaean singers starting in the 18th century&n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horae
In Greek mythology, the Horae (), Horai () or Hours (, ) were the goddesses of the seasons and the natural portions of time. Etymology The term ''hora'' comes from the Proto-Indo-European ("year"). Function The Horae were originally the personifications of nature in its different seasonal aspects, but in later times they were regarded as goddesses of order in general and natural justice. "They bring and bestow ripeness, they come and go in accordance with the firm law of the periodicities of nature and of life", Karl Kerenyi observed, adding "''Hora'' means 'the correct moment'." Traditionally, they guarded the gates of Olympus, promoted the fertility of the earth, and rallied the stars and constellations. The course of the seasons was also symbolically described as the dance of the Horae, and they were accordingly given the attributes of spring flowers, fragrance and graceful freshness; for example, in Hesiod's '' Works and Days'', the fair-haired ''Horai'', togethe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goddess
A goddess is a female deity. In some faiths, a sacred female figure holds a central place in religious prayer and worship. For example, Shaktism (one of the three major Hinduism, Hindu sects), holds that the ultimate deity, the source of all reality, is Mahadevi (Supreme Goddess) and in some forms of Tantric Shaivism, the pair of Shiva and Shakti are the ultimate principle (with the goddess representing the active, creative power of God). Meanwhile, in Vajrayana, Vajrayana Buddhism, ultimate reality is often seen as being composed of two principles depicted as two deities in union (Yab-Yum, yab yum, "father-mother") symbolising the non-duality of the two principles of perfect wisdom (female) and skillful compassion (male). A single figure in a monotheistic faith that is female may be identified simply as god because of no need to differentiate by gender or with a diminutive. An experiment to determine the effect of psychedelics on subjects composed of leaders from diverse religio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euporie
In Greek mythology, the Horae (), Horai () or Hours (, ) were the goddesses of the seasons and the natural portions of time. Etymology The term ''hora'' comes from the Proto-Indo-European ("year"). Function The Horae were originally the personifications of nature in its different seasonal aspects, but in later times they were regarded as goddesses of natural order (philosophy), order in general and natural justice. "They bring and bestow ripeness, they come and go in accordance with the firm law of the periodicities of nature and of life", Karl Kerenyi observed, adding "''Hora'' means 'the correct moment'." Traditionally, they guarded the gates of Mount Olympus, Olympus, promoted the fertility of the earth, and rallied the stars and constellations. The course of the seasons was also symbolically described as the dance of the Horae, and they were accordingly given the attributes of spring flowers, fragrance and graceful freshness; for example, in Hesiod's ''Works and Days' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eccentricity (orbit)
In astrodynamics, the orbital eccentricity of an astronomical object is a dimensionless parameter that determines the amount by which its orbit around another body deviates from a perfect circle. A value of 0 is a circular orbit, values between 0 and 1 form an elliptic orbit, 1 is a parabolic escape orbit (or capture orbit), and greater than 1 is a hyperbola. The term derives its name from the parameters of conic sections, as every Kepler orbit is a conic section. It is normally used for the isolated two-body problem, but extensions exist for objects following a rosette orbit through the Galaxy. Definition In a two-body problem with inverse-square-law force, every orbit is a Kepler orbit. The eccentricity of this Kepler orbit is a non-negative number that defines its shape. The eccentricity may take the following values: * Circular orbit: * Elliptic orbit: * Parabolic trajectory: * Hyperbolic trajectory: The eccentricity is given by e = \sqrt where is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
