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Dorothy (Venusian Crater)
Dorothy Crater is an impact crater on Venus. The names for small craters on Venus (with a diameter less than ) are chosen from common female names. is a Greek first name, and the crater was officially designated by the IAU in 1997. The crater is east of Tamfana Corona, and south of Seoritsu Farra. Like many impact craters on Venus, Dorothy has been flooded and buried by lava flows. See also * List of craters on Venus This is a list of craters on Venus, named by the International Astronomical Union's (IAU) Working Group for Planetary System Nomenclature. All craters on Venus are named after famous women or female first names. ''(For features on Venus othe ... References Impact craters on Venus {{crater-stub ... [...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] |
Venus
Venus is the second planet from the Sun. It is sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never far from the Sun, either as morning star or evening star. Aside from the Sun and Moon, Venus is the brightest natural object in Earth's sky, capable of casting visible shadows on Earth at dark conditions and being visible to the naked eye in broad daylight. Venus is the second largest terrestrial object of the Solar System. It has a surface gravity slightly lower than on Earth and has a very weak induced magnetosphere. The atmosphere of Venus, mainly consists of carbon dioxide, and is the densest and hottest of the four terrestrial planets at the surface. With an atmospheric pressure at the planet's surface of about 92 times the sea level pressure of Earth and a mean temperature of , the carbon dioxide gas at Venus's surface is in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Coronae On Venus
This is a list of named coronae on Venus. With a few exceptions, cytherean coronae are named after fertility and earth goddesses. List of coronae on Venus See also *List of montes on Venus *List of craters on Venus This is a list of craters on Venus, named by the International Astronomical Union's (IAU) Working Group for Planetary System Nomenclature. All craters on Venus are named after famous women or female first names. ''(For features on Venus othe ... References USGS: Venus Nomenclature: Corona External links USGS: Venus Nomenclature {{DEFAULTSORT:Coronae on Venus Surface features of Venus Venus-related lists it:Corona (esogeologia)#Voci correlate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Geological Features On Venus
This is a list of geological features on Venus. Venus is the second planet from the Sun. Venus is classified as a terrestrial planet and it is sometimes called Earth's "sister planet" owing to their similar size, gravity, and bulk composition (Venus is both the closest planet to Earth and the planet closest in size to Earth). The surface of Venus is covered by a dense atmosphere and presents clear evidence of former violent volcanic activity. It has shield and composite volcanoes similar to those found on Earth. Valles Cytherean valleys are called by the Latin term ''valles'', and are named after river goddesses or after words for the planet Venus (including terms for the ''morning star'' or ''evening star'' specifically) in various languages. Undae Undae on Venus refer to dune fields and are named after desert goddesses. Tesserae Tesserae are areas of polygonal terrain. They are named after goddesses in world mythologies. Rupes Scarps on Venus are called rupes and are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lava
Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or underwater, usually at temperatures from . The volcanic rock resulting from subsequent cooling is also often called ''lava''. A lava flow is an outpouring of lava during an effusive eruption. (An explosive eruption, by contrast, produces a mixture of volcanic ash and other fragments called tephra, not lava flows.) The viscosity of most lava is about that of ketchup, roughly 10,000 to 100,000 times that of water. Even so, lava can flow great distances before cooling causes it to solidify, because lava exposed to air quickly develops a solid crust that insulates the remaining liquid lava, helping to keep it hot and inviscid enough to continue flowing. The word ''lava'' comes from Italian and is probably derived from the Latin word ''labes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Craters On Venus
This is a list of craters on Venus, named by the International Astronomical Union's (IAU) Working Group for Planetary System Nomenclature. All craters on Venus are named after famous women or female first names. ''(For features on Venus other than craters see, list of montes on Venus and List of coronae on Venus.)'' As of 2017, there are 900 named craters on Venus, fewer than the lunar and Martian craters but more than on Mercury. Other, non-planetary bodies with numerous named craters include Callisto ( 141), Ganymede ( 131), Rhea (128), Vesta (90), Ceres (90), Dione (73), Iapetus (58), Enceladus (53), Tethys (50) and Europa ( 41). For a full list, ''see List of craters in the Solar System''. A back to top B back to top C back to top D back to top E back to top F back to top G back to top H back to top I back to top J back to top K back to top L back to top M back to top N back to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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