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6841. Venera 6
Courtesy of NASA's National Space Science Data Center . ... Venera 6 was launched from a Tyazheliy Sputnik (69-002C) towards Venus to obtain atmospheric data. The spacecraft was very similar to Venera 4, although it was of a stronger design. When the atmosphere of Venus was approached, a capsule weighing 405 kg was jettisoned from the main spacecraft. ... During descent towards the surface of Venus, a parachute opened to slow the rate of descent. ... Space History . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/venera6.htm -- 2.7 Кб -- 15.10.1997
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6842. Venera 7
... Venera 7 was launched from a Tyazheliy Sputnik towards Venus to study the Venusian atmosphere and other phenomena of the planet. Venera 7 entered the atmosphere of Venus on December 15, 1970, and a landing capsule was jettisoned. ... The capsule antenna was extended, and signals were returned for 35 minutes. Another 23 minutes of very weak signals were received after the spacecraft landed on Venus. The capsule was the first man-made object to return data after landing on another planet. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/venera7.htm -- 2.5 Кб -- 15.10.1997
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6843. Venera 9 Descent Craft
Courtesy of NASA's National Space Science Data Center . ... On October 20, 1975, this spacecraft was separated from the Orbiter, and landing was made with the sun near zenith at 0513 UT on October 22. ... During descent, heat dissipation and deceleration were accomplished sequentially by protective hemispheric shells, three parachutes, a disk-shaped drag brake, and a compressible, metal, doughnut-shaped, landing cushion. The landing was about 2,200 kilometers from the Venera 10 landing site. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/venera9.htm -- 3.0 Кб -- 15.10.1997
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6844. The Voyager Planetary Mission
... Jupiter . ... As originally designed, the Voyagers were to conduct closeup studies of Jupiter and Saturn , Saturn's rings, and the larger moons of the two planets. ... Had the Voyager mission ended after the Jupiter and Saturn flybys alone, it still would have provided the material to rewrite astronomy textbooks. ... Voyager 1 is now leaving the solar system, rising above the ecliptic plane at an angle of about 35 degrees at a rate of about 520 million kilometers (about 320 million miles) a year. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/vgrfs.htm -- 29.6 Кб -- 15.10.1997
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6845. Voyager Jupiter Science Summary
... Voyager 1 completed its Jupiter encounter in early April, after taking almost 19,000 pictures and many other scientific measurements. ... Its outer edge is 129,000 kilometers (80,000 miles) from the center of the planet, and, though the brightest portion is only about 6,000 kilometers (4,000 miles) wide, ring material may extend another 50,000 kilometers (30,000 miles) downward to the top of Jupiter's atmosphere. ... Jupiter Space History The Voyager Planetary Mission Voyager Saturn Science Summary ...
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Ссылки http://www.iki.rssi.ru/solar/eng/vgrjup.htm -- 15.6 Кб -- 15.10.1997
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6846. Voyager Neptune Science Summary
... Neptune . ... Triton . ... Passing about 4,950 kilometers (3,000 miles) above Neptune's north pole, Voyager 2 made its closest approach to any planet since leaving Earth 12 years earlier. Five hours later, Voyager 2 passed about 40,000 kilometers (25,000 miles) from Neptune's largest moon, Triton , the last solid body the spacecraft will have an opportunity to study. ... An Inside Diffuse Ring (1989N3R) -- a complete ring located about 17,100 kilometers (10,600 miles) from Neptune's cloud tops. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/vgrnep.htm -- 27.9 Кб -- 15.10.1997
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6847. Voyager Saturn Science Summary
... Saturn . ... Marked dominance of eastward jet streams indicates that winds are not confined to the cloud layer, but must extend inward at least 2,000 kilometers (1,200 miles). ... Two separate, discontinuous ringlets were found in the A-ring gap, known as Encke's Gap, about 73,000 kilometers (45,000 miles) from Saturn's cloud tops. ... The spokes found in the B-ring appear only at radial distances between 43,000 kilometers (27,000 miles) and 57,000 kilometers (35,000 miles) above Saturn's clouds. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/vgrsat.htm -- 25.9 Кб -- 15.10.1997
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6848. Voyager Uranus Science Summary
... Before Voyager . ... Moons . The Rings . ... At its closest, the spacecraft came within 81,500 kilometers (50,600 miles) of Uranus's cloud tops on January 24, 1986. Voyager 2 radioed thousands of images and voluminous amounts of other scientific data on the planet, its moons, rings, atmosphere, interior and the magnetic environment surrounding Uranus. ... All nine previously known rings of Uranus were photographed and measured, as were other new rings and ringlets in the Uranian system. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/vgrur.htm -- 18.1 Кб -- 15.10.1997
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6849. Viking
... Viking Images . ... Each spacecraft consisted of an orbiter and a lander. ... The first month of orbit was devoted to imaging the surface to find appropriate landing sites for the Viking Landers. On July 20, 1976 Viking Lander 1 separated from the Orbiter and touched down at Chryse Planitia. ... The Viking Landers transmitted images of the surface, took surface samples and analyzed them for composition and signs of life, studied atmospheric composition and meteorology, and deployed seismometers. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/viking.htm -- 7.6 Кб -- 15.10.1997
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6850. Project Viking Fact Sheet
... Viking was designed to orbit Mars and to land and operate on the planet's surface. ... After studying orbiter photos, the Viking site certification team considered the original landing site for Viking 1 unsafe. ... Certification of a new landing site took place in time for a Mars landing on September 3, 1976, at Utopia Planitia, at 47.7?N latitude, and 225.8? longitude. ... Changes in the Martian surface occur extremely slowly, at least at the Viking landing sites. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/vikingfs.htm -- 13.0 Кб -- 15.10.1997
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6851. Voyager
... Voyager Spacecraft Introduction (This Page) . ... The twin Voyager spacecraft, over the course of a dozen years, drew back the curtain on nearly half of the solar system . From launch in 1977 through the spectacular parting shots in 1989 of Neptune at the outer reaches of the solar system, this pair of gangly, instrument-laden spacecraft explored four planets -- Jupiter , Saturn , Uranus and Neptune -- as well as tens of moons, and the rings and magnetic environments of those planetary systems. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/voyager.htm -- 10.2 Кб -- 15.10.1997
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6852. Yohkoh (Solar A)
Japan/USA/England Solar Probe . ... The objective of Yohkoh (Japanese for sunbeam) is to study the high-energy radiations from solar flares (hard and soft X-rays and energetic neutrons) as well as quiet structures and pre-flare conditions. The mission is a successor to Hinotori, a previous Japanese spacecraft flown at the previous solar activity maximum in 1981. Yohkoh was launched on August 30, 1991. ... The Yohkoh mission is a cooperative mission of Japan, the US, and England. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/yohkoh.htm -- 2.9 Кб -- 15.10.1997
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6853. Uranus
... Uranus' Rings . ... Rings of Uranus . ... Methane in the upper atmosphere absorbs red light, giving Uranus its blue-green color. ... This view of Uranus was acquired by Voyager 2 in January 1986. ... These two pictures of Uranus, one in true color (left) and the other in false color, were compiled from images returned January 17, 1986, by the narrow-angle camera of Voyager 2. ... Pseudo-image of Uranus' Ring . This pseudo-image of Uranus' rings was generated by using Voyager 2 frame FDS 26852.19. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/uranus.htm -- 21.2 Кб -- 15.10.1997
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6854. Resurgent Calderas and the Valles Caldera
... Views of the Valles and Other Calderas . ... Caldera in the Spanish language means "kettle" or "cauldron"; in geological literature, it has come to be known as a volcanic collapse crater. ... Large calderas are usually formed during a collapse that truncates an entire volcanic field, not just one large cone. The Valles caldera of New Mexico is a beautiful example of a resurgent caldera located in the midst of the Jemez volcanic field. ... Landsat Image of the Valles Caldera . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/valles.htm -- 12.8 Кб -- 15.10.1997
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6855. Venusian Impact Craters
... Generally, impact craters have a circular outline, a raised rim, and a depth that is shallow relative to the diameter. The crater is surrounded by ejecta deposits that decrease in thickness outward from the crater rim. ... The Venusian impact crater Danilova is 48 kilometers (30 miles) in diameter. ... The ejecta blanket and the circular rim of a crater are very bright in radar images because both are rough, with many facets oriented perpendicular to the radar illumination. ... Irregular craters . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/vencrate.htm -- 26.7 Кб -- 15.10.1997
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6856. Venera 15 & 16
USSR Venus Orbiters . ... Venera 15 and Venera 16 were a two-spacecraft mission designed to use 8-centimeter (3-inch) band, side-looking radar mappers to study the surface properties of Venus . ... Each spacecraft consisted of a synthetic aperture radar (SAR) and a radio altimeter. ... The Venera 15 and 16 synthetic aperture radar (SAR) systems were identical, and were used to map the surface of Venus at a resolution of 1 to 2 kilometers (.6 to 1.2 miles) over a period of 8 months. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/venera16.htm -- 7.6 Кб -- 15.10.1997
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6857. Venus Introduction
... Views of Venus . ... Venus Image and Animation Index . ... Magellan images of highland regions above 2.5 kilometers (1.5 miles) are unusually bright, characteristic of moist soil. ... This is a global view of the surface of Venus centered at 180 degrees east longitude. ... Gula Mons, a 3 kilometer (1.86 mile) high volcano, is located at approximately 22 degrees north latitude, 359 degrees east longitude. ... The distance between Sif Mons and Gula Mons is approximately 730 kilometers (453 miles). ...
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Ссылки http://www.iki.rssi.ru/solar/eng/venus.htm -- 27.6 Кб -- 15.10.1997
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6858. Venusian Volcanic Features
... Lava Flows . Lava Channels . ... The plains range in elevation from about 1.5 kilometers (.9 miles) below to 2 kilometers (1.2 miles) above the mean planetary radius of 6,051 kilometers (3,761 miles) [Guest et al., ... Lava flows may extend from a few to hundreds of kilometers in length. ... The rim of the volcano to the west appears to have been breached by dark lava flows that emanated from a shallow summit pit 5.4 kilometers (3.4 miles) in diameter and traveled west along a channel. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/venvolc.htm -- 26.4 Кб -- 15.10.1997
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6859. Asteroid Vesta
Vesta . ... The Hubble Space Telescope observed asteroid Vesta between November 28 and December 1, 1994, when Vesta was at a distance of 251 million kilometers (156 million miles) from Earth. ... Vesta's surface shows a geology similar to that of terrestrial worlds such as Earth and Mars . ... Astronomers believe that some of the pieces knocked off Vesta have fallen to Earth as meteorites , which show a similar spectral fingerprint to Vesta's surface composition. ... Surface Map of Vesta . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/vesta.htm -- 13.1 Кб -- 15.10.1997
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6860. Jupiter's Moon Thebe
Thebe . Jupiter XIV - 1979J2 . Thebe [THEE-bee] is the fourth known satellite of Jupiter. ... Thebe rotates synchronously around Jupiter. Very little is known about this moon. ... Stephen Synnott . Date of discovery . ... Discovery Image . This is one of the discovery images (FDS 16383.54) of Thebe. ... Once the shadow images were analyzed, Thebe was located on several other images. ... This image of Thebe (FDS 16220.56) was taken by the Voyager 1 spacecraft on February 27, 1979. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/thebe.htm -- 5.2 Кб -- 15.10.1997
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