| Piú viste - NASA Original Files - Mercury |
m10_aom_3_10.jpgTerraced Mercurian Crater and other craters73 visitenessun commento
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m10_aom_21.jpgThe "burning" Caloris Basin (HR)68 visiteThe largest basin on Mercury (about 1300 Km - or 800 miles across) was named Caloris (Latin for "heat") because it is one of the two areas on the Planet that face the Sun at perihelion.
The Image Processing Lab at NASA's Jet Propulsion Laboratory produced this photomosaic using computer software and techniques developed for use in processing planetary data.
The Mariner 10 spacecraft imaged this Region during its initial flyby of the Planet.
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m10_aom_18.jpgMercury's "Inbound" view and Kuiper Crater64 visiteThis is a mosaic of images taken of Mercury taken from 125.000 miles away. The tiny, brightly rayed crater (just below center top) was the first recognizable feature on the Planet's surface and was named in memory of astronomer Gerard Kuiper, a Mariner 10 team member.
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m10_aom_3_a.jpg63 visitenessun commento
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m10_aom_3_2.jpgTerraced Mercurian Craters (HR)62 visiteThis crater (about 98 km diameter) illustrates the narrow hummocky rim facies, radial ridges and surrounding extensive field of secondary craters.
The well-developed interior terraces and central peaks are typical for Mercurian Craters in this size range.
Note that the smaller craters in the foreground (25-Km diameter) also are terraced.
This image(FDS 80)was taken during the spacecraft's first encounter with Mercury.
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m10_aom_3_8.jpgTerraced Mercurian Crater with multiple central Peaks (HR)62 visiteThis crater (about 74 Km diameter) just North of the Caloris Planitia displays interior and central peaks rising up from a hilly floor. The continuous ejecta deposits and secondary crater field are well defined.
This image (FDS 79) was taken during the spacecraft's first encounter with Mercury.
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m10_aom_19.jpgMercury's "Outbound" view62 visiteAfter passing on the darkside of the Planet, Mariner 10 photographed the other, somewhat more illuminated Hemisphere of Mercury.
The North Pole is at the top, two-thirds down from which is the Equator.
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m10_aom_3_e.jpg61 visitenessun commento
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m10_aom_7_8.jpg61 visitenessun commento
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m10_aom_2_10.jpgThe "Antoniadi" Ridge of Mercury (HR)59 visiteAntoniadi Ridge, over 450 Km long, runs along the right side of this image. The ridge transects a large crater (80-Km in diameter) and in turn appears to be interrupted by an irregular rimless depression on the floor of the crater. This ridge also crosses smooth plains to the north and intercrater plains to the south of the large crater.
This image (FDS 27325) was acquired during the spacecraft's first encounter with Mercury.
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m10_aom_3_11.jpg59 visitenessun commento
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m10_aom_11_27.jpgDiscovery Rupes' Scarp (HR)59 visiteA limping Mariner 10 spacecraft was coaxed into a third and final encounter with Mercury in March of 1975.
Due to several problems with the aging spacecraft, only ~450 useful images of the Planet were acquired, though many are at significantly higher resolution than previous encounters.
In this HR image (FDS 528884) the Sun is low to the horizon thus enhancing topographic features with prominent shadows.
As can be seen here, the surface of Mercury is heavily cratered similar to the Moon.
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