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Hegemone (moon)
Hegemone , 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 2003, and given the temporary designation . Hegemone is about 3 kilometres in diameter, and orbits Jupiter at an average distance of 23,703,000 km in 745.500 days, at an inclination of 153° to the ecliptic (151° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.4077. It was named in March 2005 after Hegemone, one of the Graces, and a daughter of Zeus (Jupiter). 2005 March 30 (naming the moon) Hegemone belongs to the Pasiphae group, irregular retrograde moons orbiting Jupiter at distances ranging ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hegemone (mythology)
In ancient Greek religion, Hegemone (, from the feminine form of ) was, according to the geographer Pausanias, the name given to one of the two Charites at Athens (the other being Auxo). Hegemone, as the name of a Charis, can be understood to mean "she who leads" in the sense of "brings the plants forth from the earth". Hegemone, along with Auxo, and several other deities including Ares, and Zeus, was invoked as witness to the civic oath sworn by the ephebes of Athens. Hegemone was also an epithet of the goddesses Artemis and Aphrodite. As applied to Artemis, the name Hegemone is variously translated as "Leader", "Queen", or "Guide". Pausanias reports that Artemis Hegemone had a temple at Lycosura in Arcadia, and a sanctuary at Sparta. The third-century BC poet Callimachus seems to have applied the epithet to Artemis as the guide of the colonists who founded Miletus. Inscriptions attest the presence of a cult of Aphrodite Hegemone, at Rhamnus.Lohmanns.v. Rhamnus Notes Referen ... [...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] |
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] |
Charites
In Greek mythology, the Charites (; ), singular Charis (), also called the Graces, are goddesses who personify beauty and grace. According to Hesiod, the Charites were Aglaia (Grace), Aglaea, Euphrosyne, and Thalia (Grace), Thalia, who were the daughters of Zeus and Eurynome (Oceanid), Eurynome, the daughter of Oceanus. However in other accounts, their names, number and parentage varied. In Roman mythology they were known as the Gratiae. Hesiod has Aglaea as the wife of Hephaestus, and in the ''Iliad'' Hera promises to give a Charis named Pasithea to Hypnos as bride. Otherwise they have little independent mythology, usually described as attending various gods and goddesses, especially Aphrodite. In Roman and later art, the three Charites are generally depicted nude in an interlaced group, but during the Archaic Greece, Archaic and Classical Greece, Classical periods of Greece, they were typically depicted as fully clothed, and in a line, with dance poses. Parentage, number, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hegemone
In ancient Greek religion, Hegemone (, from the feminine form of ) was, according to the geographer Pausanias, the name given to one of the two Charites at Athens (the other being Auxo). Hegemone, as the name of a Charis, can be understood to mean "she who leads" in the sense of "brings the plants forth from the earth". Hegemone, along with Auxo, and several other deities including Ares, and Zeus, was invoked as witness to the civic oath sworn by the ephebes of Athens. Hegemone was also an epithet of the goddesses Artemis and Aphrodite. As applied to Artemis, the name Hegemone is variously translated as "Leader", "Queen", or "Guide". Pausanias reports that Artemis Hegemone had a temple at Lycosura in Arcadia, and a sanctuary at Sparta. The third-century BC poet Callimachus seems to have applied the epithet to Artemis as the guide of the colonists who founded Miletus. Inscriptions attest the presence of a cult of Aphrodite Hegemone, at Rhamnus.Lohmanns.v. Rhamnus Notes Refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retrograde Motion
Retrograde motion in astronomy is, in general, orbital or rotational motion of an object in the direction opposite the rotation of its primary, that is, the central object (right figure). It may also describe other motions such as precession or nutation of an object's rotational axis. Prograde or direct motion is more normal motion in the same direction as the primary rotates. However, "retrograde" and "prograde" can also refer to an object other than the primary if so described. The direction of rotation is determined by an inertial frame of reference, such as distant fixed stars. In the Solar System, the orbits around the Sun of all planets and dwarf planets and most small Solar System bodies, except many comets and few distant objects, are prograde. They orbit around the Sun in the same direction as the sun rotates about its axis, which is counterclockwise when observed from above the Sun's north pole. Except for Venus and Uranus, planetary rotations around their a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scott S
Scott may refer to: Places Canada * Scott, Quebec, municipality in the Nouvelle-Beauce regional municipality in Quebec * Scott, Saskatchewan, a town in the Rural Municipality of Tramping Lake No. 380 * Rural Municipality of Scott No. 98, Saskatchewan United States * Scott, Arkansas * Scott, Georgia * Scott, Indiana * Scott, Louisiana * Scott, Missouri * Scott, New York * Scott, Ohio * Scott, Wisconsin (other) (several places) * Fort Scott, Kansas * Great Scott Township, St. Louis County, Minnesota * Scott Air Force Base, Illinois * Scott City, Kansas * Scott City, Missouri * Scott County (other) (various states) * Scott Mountain (other) (several places) * Scott River, in California * Scott Township (other) (several places) Elsewhere * 876 Scott, minor planet orbiting the Sun * Scott (crater), a lunar impact crater near the south pole of the Moon *Scott Conservation Park, a protected area in South Australia Lists * Scott ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecliptic
The ecliptic or ecliptic plane is the orbital plane of Earth's orbit, Earth around the Sun. It was a central concept in a number of ancient sciences, providing the framework for key measurements in astronomy, astrology and calendar-making. From the perspective of an observer on Earth, the Sun's movement around the celestial sphere over the course of a year traces out a path along the ecliptic against the fixed stars, background of stars – specifically the Zodiac constellations. The planets of the Solar System can also be seen along the ecliptic, because their orbital planes are very close to Earth's. The Moon's orbital plane is also similar to Earth's; the ecliptic is so named because the ancients noted that eclipses only occur when the Moon is crossing it. The ecliptic is an important Plane of reference, reference plane and is the basis of the ecliptic coordinate system. Ancient scientists were able to calculate Earth's axial tilt by comparing the ecliptic plane to that of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inclination
Orbital inclination measures the tilt of an object's orbit around a celestial body. It is expressed as the angle between a reference plane and the orbital plane or axis of direction of the orbiting object. For a satellite orbiting the Earth directly above the Equator, the plane of the satellite's orbit is the same as the Earth's equatorial plane, and the satellite's orbital inclination is 0°. The general case for a circular orbit is that it is tilted, spending half an orbit over the northern hemisphere and half over the southern. If the orbit swung between 20° north latitude and 20° south latitude, then its orbital inclination would be 20°. Orbits The inclination is one of the six orbital elements describing the shape and orientation of a celestial orbit. It is the angle between the orbital plane and the plane of reference, normally stated in degrees. For a satellite orbiting a planet, the plane of reference is usually the plane containing the planet's equator. For pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
