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Fitnah (crater)
Fitnah is an impact crater in the northern hemisphere of Saturn's moon Enceladus. Fitnah was first observed in ''Cassini–Huygens'' images during that mission's February 2005 flyby of Enceladus. It is located at 45.1° North Latitude, 290.6° West Longitude and is 16.5 kilometers across. The topography of the impact crater appears very subdued, suggesting that the crater has undergone significant viscous relaxation since its formation, leaving behind only the raised rim behind. The crater is named after a character from the " Tale of Ghanim bin Ayyub, the Distraught, the Thrall o’ Love" in ''The Book of One Thousand and One Nights''. The character is the daughter of Ayyub and sister of Ghanim, and craters named Ghanim Ghanim is a surname. Notable people with the surname include: *Antoine Ghanim, Lebanese politician and an MP in the Lebanese Parliament * Ghanim Abdulrahman al-Harbi, Saudi detainee at Guantanamo Bay * Ghanim Al-Jumaily (born 1950), the ambassador o ... and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enceladus Hamah Sulci
Enceladus is the sixth-largest moon of Saturn (19th largest in the Solar System). It is about in diameter, about a tenth of that of Saturn's largest moon, Titan. Enceladus is mostly covered by fresh, clean ice, making it one of the most reflective bodies of the Solar System. Consequently, its surface temperature at noon only reaches , far colder than a light-absorbing body would be. Despite its small size, Enceladus has a wide range of surface features, ranging from old, heavily cratered regions to young, tectonically deformed terrain. Enceladus was discovered on August 28, 1789, by William Herschel, but little was known about it until the two Voyager spacecraft, '' Voyager 1'' and '' Voyager 2'', flew by Saturn in 1980 and 1981. In 2005, the spacecraft '' Cassini'' started multiple close flybys of Enceladus, revealing its surface and environment in greater detail. In particular, ''Cassini'' discovered water-rich plumes venting from the south polar region. Cryovo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassini–Huygens
''Cassini–Huygens'' ( ), commonly called ''Cassini'', was a space research, space-research mission by NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to send a space probe to study the planet Saturn and its system, including its Rings of Saturn, rings and Moons of Saturn, natural satellites. The Large Strategic Science Missions, Flagship-class robotic spacecraft comprised both NASA's ''Cassini'' space probe and ESA's Huygens (spacecraft), ''Huygens'' lander (spacecraft), lander, which landed on Saturn's largest moon, Titan (moon), Titan. ''Cassini'' was the fourth space probe to visit Saturn and the first to enter its orbit, where it stayed from 2004 to 2017. The two craft took their names from the astronomers Giovanni Domenico Cassini, Giovanni Cassini and Christiaan Huygens. Launched aboard a Titan IV, Titan IVB/Centaur on October 15, 1997, ''Cassini'' was active in space for nearly 20 years, with 13 years spent orbiting Saturn and studying the pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Crater
An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact craters typically have raised rims and floors that are lower in elevation than the surrounding terrain. Lunar impact craters range from microscopic craters on lunar rocks returned by the Apollo Program and small, simple, bowl-shaped depressions in the lunar regolith to large, complex, multi-ringed impact basins. Meteor Crater is a well-known example of a small impact crater on Earth. Impact craters are the dominant geographic features on many solid Solar System objects including the Moon, Mercury, Callisto, Ganymede and most small moons and asteroids. On other planets and moons that experience more active surface geological processes, such as Earth, Venus, Europa, Io and Titan, visible impact craters are less common because they become eroded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saturn
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. It is a gas giant with an average radius of about nine and a half times that of Earth. It has only one-eighth the average density of Earth; however, with its larger volume, Saturn is over 95 times more massive. Saturn's interior is most likely composed of a core of iron–nickel and rock (silicon and oxygen compounds). Its core is surrounded by a deep layer of metallic hydrogen, an intermediate layer of liquid hydrogen and liquid helium, and finally, a gaseous outer layer. Saturn has a pale yellow hue due to ammonia crystals in its upper atmosphere. An electrical current within the metallic hydrogen layer is thought to give rise to Saturn's planetary magnetic field, which is weaker than Earth's, but which has a magnetic moment 580 times that of Earth due to Saturn's larger size. Saturn's magnetic field strength is around one-twentieth of Jupiter's. The outer atmosphere is g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enceladus (moon)
Enceladus is the sixth-largest moon of Saturn (19th largest in the Solar System). It is about in diameter, about a tenth of that of Saturn's largest moon, Titan. Enceladus is mostly covered by fresh, clean ice, making it one of the most reflective bodies of the Solar System. Consequently, its surface temperature at noon only reaches , far colder than a light-absorbing body would be. Despite its small size, Enceladus has a wide range of surface features, ranging from old, heavily cratered regions to young, tectonically deformed terrain. Enceladus was discovered on August 28, 1789, by William Herschel, but little was known about it until the two Voyager spacecraft, ''Voyager 1'' and ''Voyager 2'', flew by Saturn in 1980 and 1981. In 2005, the spacecraft '' Cassini'' started multiple close flybys of Enceladus, revealing its surface and environment in greater detail. In particular, ''Cassini'' discovered water-rich plumes venting from the south polar region. Cryovolc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latitude
In geography, latitude is a coordinate that specifies the north– south position of a point on the surface of the Earth or another celestial body. Latitude is given as an angle that ranges from –90° at the south pole to 90° at the north pole, with 0° at the Equator. Lines of constant latitude, or ''parallels'', run east–west as circles parallel to the equator. Latitude and ''longitude'' are used together as a coordinate pair to specify a location on the surface of the Earth. On its own, the term "latitude" normally refers to the ''geodetic latitude'' as defined below. Briefly, the geodetic latitude of a point is the angle formed between the vector perpendicular (or ''normal'') to the ellipsoidal surface from the point, and the plane of the equator. Background Two levels of abstraction are employed in the definitions of latitude and longitude. In the first step the physical surface is modeled by the geoid, a surface which approximates the mean sea level over the ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longitude
Longitude (, ) is a geographic coordinate that specifies the east–west position of a point on the surface of the Earth, or another celestial body. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda (λ). Meridians are semicircular lines running from pole to pole that connect points with the same longitude. The prime meridian defines 0° longitude; by convention the International Reference Meridian for the Earth passes near the Royal Observatory in Greenwich, England on the island of Great Britain. Positive longitudes are east of the prime meridian, and negative ones are west. Because of the Earth's rotation, there is a close connection between longitude and time measurement. Scientifically precise local time varies with longitude: a difference of 15° longitude corresponds to a one-hour difference in local time, due to the differing position in relation to the Sun. Comparing local time to an absolute measure of time allows ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Book Of One Thousand And One Nights
''One Thousand and One Nights'' ( ar, أَلْفُ لَيْلَةٍ وَلَيْلَةٌ, italic=yes, ) is a collection of Middle Eastern folk tales compiled in Arabic during the Islamic Golden Age. It is often known in English as the ''Arabian Nights'', from the first English-language edition (), which rendered the title as ''The Arabian Nights' Entertainment''. The work was collected over many centuries by various authors, translators, and scholars across West, Central and South Asia, and North Africa. Some tales trace their roots back to ancient and medieval Arabic, Egyptian, Sanskrit, Persian, and Mesopotamian literature. Many tales were originally folk stories from the Abbasid and Mamluk eras, while others, especially the frame story, are most probably drawn from the Pahlavi Persian work ( fa, هزار افسان, lit. ''A Thousand Tales''), which in turn relied partly on Indian elements. Common to all the editions of the ''Nights'' is the framing device of the story ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ghanim (crater)
Ghanim is an impact crater in the northern hemisphere of Saturn's moon Enceladus. Ghanim was first observed in '' Cassini'' images during that mission's February 2005 flyby of Enceladus. It is located at 38.5° North Latitude, 281.5° West Longitude and is 13.9 kilometers across. The topography of the impact crater appears very subdued, suggesting that the crater has undergone significant viscous relaxation since its formation. Tectonics has also affected this crater, by influencing the final, polygonal shape of the crater as well disrupting the southeastern and northwestern margins of the crater following its formation. The crater is named after Ghanim bin Ayyub (Ghanim, son of Ayyub), the title character of the " Tale of Ghanim bin Ayyub, the Distraught, the Thrall o’ Love" in ''The Book of One Thousand and One Nights ''One Thousand and One Nights'' ( ar, أَلْفُ لَيْلَةٍ وَلَيْلَةٌ, italic=yes, ) is a collection of Middle Eastern folk tales com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ayyub (crater)
Ayyub is an impact crater in the northern hemisphere of Saturn's moon Enceladus. Ayyub was first observed in '' Cassini'' images during that mission's February 2005 flyby of Enceladus. It is located at 38.4° North Latitude, 295.7° West Longitude and is 18 kilometers across. The topography of the impact crater appears very subdued, suggesting that the crater has undergone significant viscous relaxation since its formation. Tectonics has also affected this crater, by influencing the final, polygonal shape of the crater as well disrupting the southeastern and northwestern margins of the crater following its formation. The crater is named after a fictional Damascus merchant from the " Tale of Ghanim bin Ayyub, the Distraught, the Thrall o’ Love" in ''The Book of One Thousand and One Nights''. In the tale, he is father to Ghanim and Fitnah, and craters named Ghanim Ghanim is a surname. Notable people with the surname include: *Antoine Ghanim, Lebanese politician and an MP in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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