NationMaster - Encyclopedia: Atlas (moon)

Atlas (at'-lus, Greek Άτλας) is a moon of Saturn. Image File history File links View of Saturns Small Inner Moon Atlas, taken by the Cassini Spacecrafts Imaging Sub-system Narrow-Angle Camera on June 8, 2005. ... Richard J. Terrile is a Voyager scientist who discovered several moons of Saturn, Uranus, and Neptune. ... A NASA artists rendition of a Voyager spacecraft The Voyager 1 spacecraft is an 815-kilogram unmanned probe of the outer solar system and beyond, launched September 5, 1977, and currently operational. ... 1980 is a leap year starting on Tuesday. ... In physics, an orbit is the path that an object makes, around another object, whilst under the influence of a source of centripetal force, such as gravity. ... In classical geometry, a radius of a circle or sphere is any line segment with one endpoint on the circle (i. ... A kilometre (American spelling: kilometer) (symbol: km) is a unit of length equal to 1000 metres (from the Greek words khilia = thousand and metro = count/measure). ... In astrodynamics, under standard assumptions any orbit must be of conic section shape. ... The orbital period is the time it takes a planet (or another object) to make one full orbit. ... Inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit and is the angular distance of the orbital plane from the plane of the reference (usually planets equator or the ecliptic), stated in degrees. ... Moons of solar system scaled to Earths Moon The common noun moon (not capitalized) is used to mean any natural satellite of the other planets. ... Atmospheric characteristics Atmospheric pressure 140 kPa Hydrogen >93% Helium >5% Methane 0. ... For the geometric term, see diameter. ... This article explains the meaning of area as a physical quantity. ... Square kilometre (US spelling: Square kilometer), symbol km², is an SI unit of surface area. ... Mass is a property of physical objects that, roughly speaking, measures the amount of matter they contain. ... The international prototype, made of platinum-iridium, which is kept at the BIPM under conditions specified by the 1st CGPM in 1889. ... Density (symbol: Ï - Greek: rho) is a measure of mass per unit of volume. ... The gram or gramme, symbol g, is a unit of mass, and is defined in the SI system of units as one one-thousandth of a kilogram (i. ... It has been suggested that Law of universal gravitation be merged into this article or section. ... Acceleration is the time rate of change of velocity, and at any point on a v-t graph, it is given by the gradient of the tangent to that point In physics, acceleration (symbol: a) is defined as the rate of change (or time derivative) of velocity. ... In physics, for a given gravitational field and a given position, the escape velocity is the minimum speed an object without propulsion, at that position, needs to have to move away indefinitely from the source of the field, as opposed to falling back or staying in an orbit within a... On a prograde planet like the Earth, the sidereal day is shorter than the solar day. ... In astronomy, synchronous rotation is a planetological term describing a body orbiting another, where the orbiting body takes as long to rotate on its axis as it does to make one orbit; and therefore always keeps the same hemisphere pointed at the body it is orbiting. ... Axial tilt is an astronomical term regarding the inclination angle of a planets rotational axis in relation to its orbital plane. ... The albedo is a measure of reflectivity of a surface or body. ... Temperature is the physical property of a system which underlies the common notions of hot and cold; the material with the higher temperature is said to be hotter. ... The kelvin (symbol: K) is the SI unit of temperature, and is one of the seven SI base units. ... diurnal (daily) rhythm of air pressure in northern Germany (black curve is air pressure) Atmospheric pressure is the pressure above any area in the Earths atmosphere caused by the weight of air. ... The pascal (symbol Pa) is the SI unit of pressure. ... Moons of solar system scaled to Earths Moon The common noun moon (not capitalized) is used to mean any natural satellite of the other planets. ... Atmospheric characteristics Atmospheric pressure 140 kPa Hydrogen >93% Helium >5% Methane 0. ...

Atlas was discovered by Richard Terrile in 1980 from Voyager photos and was designated 1980 S 28. In 1983 it was officially named after Atlas of Greek mythology, because it "holds the rings on its shoulders" like the Titan Atlas held the sky up above the Earth. It is also designated as Saturn XV. Richard J. Terrile is a Voyager scientist who discovered several moons of Saturn, Uranus, and Neptune. ... 1980 is a leap year starting on Tuesday. ... The Voyager spacecraft Launch of Voyager 2 Voyager is also the name of a planned series of unmanned probes to Mars, cancelled in 1968. ... 1983 is a common year starting on Saturday of the Gregorian calendar. ... In Greek mythology, Atlas was the son of the Titan Iapetus and the nymph Clymene, and brother of Prometheus. ... Greek mythology comprises the collected narratives of Greek gods, goddesses, heroes, and heroines, originally created and spread within an oral-poetic tradition. ... In Greek mythology, the Titans (Greek Î¤Î¹Ï„á½±Î½, plural Î¤Î¹Ï„á¾¶Î½ÎµÏ‚) are among a series of gods, some of whom opposed Zeus and the Olympian gods in their ascent to power. ... Earth, also known as the Earth, Terra, and (mostly in the 19th century) Tellus, is the third planet outward from the Sun. ...

Atlas seems to be a shepherd satellite of the A ring. Furthermore, in 2004 a faint, thin ring, temporarily designated R/2004 S 1, was discovered within Atlas's orbit. A planetary ring is a ring of dust and other small particles orbiting around a planet in a flat disc-shaped region. ... In this image of Saturn, the A Ring is the outer of the two wide rings The A ring is one of the rings of Saturn. ... 2004 is a leap year starting on Thursday of the Gregorian calendar. ... R/2004 S 1, also known as S/2004 1R, is the temporary designation of a newly discovered ring around the planet Saturn. ...

High-resolution images taken in June 2005 by Cassini reveal a saucer-shaped moon with a large equatorial ridge. June is the sixth month of the year in the Gregorian Calendar and one of four with the length of 30 days. ... 2005 is a common year starting on Saturday of the Gregorian calendar and is the current year. ... This is an artists concept of Cassini during the Saturn Orbit Insertion (SOI) maneuver, just after the main engine has begun firing. ... The ridge on Iapetus The ridge on Atlas Equatorial ridges are a feature of at least two of Saturns moons. ...

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Image of S/2005 S 1 obtained by Cassini showing the ripples it induces in the edges of the Keeler gap. ... Prometheus (proe-mee-thee-us, Greek Î ÏÎ¿Î¼Î·Î¸ÎÎ±Ï‚) is a moon of Saturn. ...

Categories: Saturn's moons Pan (pan, Greek Î Î¬Î½) is a moon of Saturn, named after the god Pan. ... Image of S/2005 S 1 obtained by Cassini showing the ripples it induces in the edges of the Keeler gap. ... Prometheus (proe-mee-thee-us, Greek Î ÏÎ¿Î¼Î·Î¸ÎÎ±Ï‚) is a moon of Saturn. ... S/2004 S 6 is the provisional designation of a natural satellite of Saturn that was discovered in 2004 (on October 28 images) by the Cassini probe team, led by Carolyn C. Porco et al. ... S/2004 S 4 is the designation of an unconfirmed moon of Saturn announced by the Cassini Imaging Team on September 9, 2004. ... S/2004 S 3 is the provisional designation of an unconfirmed moon of Saturn. ... Pandora (pan-dor-a, Greek Î Î±Î½Î´ÏŽÏÎ±) is a moon of Saturn. ... Epimetheus (ep-i-mee-thee-us, Greek Î•Ï€Î¹Î¼Î·Î¸ÎµÏÏ‚) is a moon of Saturn. ... Janus (jay-nus, Greek Î™Î±Î½ÏŒÏ‚) is a moon of Saturn. ... Mimas (mye-mus, Greek ÎœÎ¯Î¼Î±Ï‚, Îœá¿‘Î¼Î¬Î½Ï„-) is a moon of Saturn that was discovered in 1789 by William Herschel. ... Discovery image of Methone Methone (me-thoe-nee, Greek ÎœÎµÎ¸Ï‰Î½Î·) is a natural satellite of Saturn. ... Discovery image of Pallene Pallene (pa-lee-nee, Greek Î Î±Î»Î»Î®Î½Î·) is a natural satellite of Saturn. ... [4]; [5] Atmospheric characteristics Pressure trace, signficant spatial variability [6] Water Vapor 65% [7] Hydrogen 20% [8] Other CO2, CO, N2 [9] Enceladus (en-sel-a-dus, Greek Î•Î³ÎºÎÎ»Î±Î´Î¿Ï‚) is a moon of Saturn discovered in 1789 by William Herschel. ... Atmosphere none Telesto (te-les-toe, Greek Î¤ÎµÎ»ÎµÏƒÏ„ÏŽ) is a moon of Saturn. ... Atmosphere none Tethys (tee-this or teth-is, Greek Î¤Î·Î¸ÏÏ‚) is a moon of Saturn that was discovered by Giovanni Domenico Cassini in 1684. ... Atmosphere none Calypso (ka-lip-soe, Greek ÎšÎ±Î»Ï…ÏˆÏŽ) is a moon of Saturn. ... Atmosphere none Polydeuces (pol-ee-dew-seez, Greek Î Î¿Î»Ï…Î´ÎµÏÎºÎ·Ï‚) is a natural satellite of Saturn that was discovered on images taken on October 21, 2004 by the Cassini imaging team, led by Carolyn C. Porco et al, and given the temporary designation S/2004 S 5. ... Atmosphere none Dione (dye-oe-nee, Greek Î”Î¹ÏŽÎ½Î·) is a moon of Saturn discovered by Giovanni Cassini in 1684. ... Helene (hel-e-nee, Greek â€˜Î•Î»ÎÎ½Î·) is a moon of Saturn. ... Atmosphere none Rhea (ree-a, Greek â€˜Î¡ÎÎ±) is the second largest moon of Saturn and was discovered in 1672 by Giovanni Domenico Cassini. ... Titan (tye-tun, Greek Î¤Î¹Ï„Î¬Î½Î±Ï‚) is the largest moon of Saturn and the second largest moon in the solar system[1], after Jupiters moon Ganymede. ... Hyperion (hye-peer-ee-un, Greek â€˜Î¥Ï€ÎµÏÎ¯Ï‰Î½Î±Ï‚) is a moon of Saturn discovered by William Cranch Bond, George Phillips Bond and William Lassell in 1848. ... Iapetus (eye-ap-i-tus, Greek Î™Î±Ï€ÎµÏ„ÏŒÏ‚) (British spelling: Japetus) is the third-largest moon of Saturn (see: Saturns natural satellites), discovered by Giovanni Domenico Cassini in 1671. ... Kiviuq (kee-vee-oek or kiv-ee-uk) is a natural satellite of Saturn. ... Ijiraq (ee-ye-raak or ee-ji-raak) is a natural satellite of Saturn. ... For other meanings see Phoebe. ... Paaliaq (paw-lee-aak) is a natural satellite of Saturn. ... Skathi (skaadh-ee, with a voiced th as in this) (Saturn XXVII) is a natural satellite of Saturn. ... Albiorix (al-bee-or-iks) is a natural satellite of Saturn. ... S/2004 S 11 is a natural satellite of Saturn. ... Erriapo (air-ee-ap-oe?, Latin ErriapÅ or ErriappÅ) (Saturn XXVIII) is a natural satellite of Saturn. ... Siarnaq (see-ar-naak) (Saturn XXIX) is a natural satellite of Saturn. ... S/2004 S 13 is a natural satellite of Saturn. ... Tarvos (tar-vus) (Saturn XXI) is a natural satellite of Saturn. ... Mundilfari (moon-dil-fair-ee, Norse MundilfÃ¤ri) (Saturn XXV) is a natural satellite of Saturn. ... S/2004 S 17 is a natural satellite of Saturn. ... Narvi (nar-vee) (Saturn XXXI) is a natural satellite of Saturn. ... S/2004 S 15 is a natural satellite of Saturn. ... S/2004 S 10 is a natural satellite of Saturn. ... Suttungr (soot-oong-ur) (Saturn XXIII) is a natural satellite of Saturn. ... S/2004 S 12 is a natural satellite of Saturn. ... S/2004 S 18 is a natural satellite of Saturn. ... S/2004 S 9 is a natural satellite of Saturn. ... S/2004 S 14 is a natural satellite of Saturn. ... S/2004 S 7 is a natural satellite of Saturn. ... Thrymr (THRIM er) is a natural satellite of Saturn. ... S/2004 S 16 is a natural satellite of Saturn. ... Ymir (ee-mur) (Saturn XIX) is a natural satellite of Saturn. ... S/2004 S 8 is a natural satellite of Saturn. ... Saturns rings; the major rings are labelled This is a list of the 15 named rings of Saturn, and the gaps between them. ... This is an artists concept of Cassini during the Saturn Orbit Insertion (SOI) maneuver, just after the main engine has begun firing. ... On April 28, 1905, William H. Pickering, who had seven years earlier discovered Phoebe, announced the discovery of a tenth satellite of Saturn, which he promptly named Themis. ...

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