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6961. Saturn's Moon Janus
Janus . Saturn X - 1980S1 . ... Janus has an irregular shape with a size of 196x192x150 kilometers (122x119x93 miles) in diameter. ... Janus and Epimetheus share the same orbit of 151,472 kilometers (94,125 miles) from Saturn's center or 91,000 kilometers (56,547 miles) above the cloud tops. ... Janus Statistics . ... Janus - The Rotating Moon of Saturn . ... As with all maps, it is the cartographer's interpretation; not all features are necessarily certain given the limited data available. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/janus.htm -- 7.5 Кб -- 15.10.1997
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6962. Uranus' Satellite Juliet
Juliet . Uranus XI - 1986U2 . Juliet was named after the tragic heroine in Shakespeare's play Romeo and Juliet . It is the sixth known satellite of Uranus, and it was discovered by Voyager 2 . Juliet Statistics . Discovered by . ... Equatorial radius (km) . ... Equatorial radius (Earth = 1) . ... Mean density (gm/cm^3) . Mean distance from Uranus (km) . ... Rotational period (days) . Orbital period (days) . ... Mean orbital velocity (km/sec) . ... Orbital eccentricity . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/juliet.htm -- 3.5 Кб -- 15.10.1997
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6963. Jupiter
... Rings of Jupiter . ... In this view, Io is about 350,000 kilometers (220,000 miles) above Jupiter's Great Red Spot, while Europa is about 600,000 kilometers (373,000 miles) above Jupiter's clouds. ... This dramatic view of Jupiter's Great Red Spot and its surroundings was obtained by Voyager 1 on Feb. 25, 1979, when the spacecraft was 9.2 million kilometers (5.7 million miles) from Jupiter. ... This view of Jupiter's Great Red Spot is a mosaic of two images taken by the Galileo spacecraft. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/jupiter.htm -- 24.6 Кб -- 15.10.1997
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6964. Kuiper Belt Objects
... Kuiper belt objects are icy bodies in the outer solar system. ... Views of Kuiper Belt Objects . Object 1993 SC . This image shows a small part of the discovery frames of 1993 SC, one of the brightest Kuiper-Belt objects so far discovered. ... Assuming that Object 1993 SC reflects light much like other primitive asteroids and comets in the out solar system, the diameter is around 300 kilometers (186 miles), or just a quarter the size of Pluto's moon Charon. ... Comet Shoemaker-Levy 9 Impact . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/kuiper.htm -- 5.0 Кб -- 15.10.1997
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6965. Hubble Detects Long-Sought Comet Population Beyond Neptune
... NASA's Hubble Space Telescope has detected a long-sought population of comets dwelling at the icy fringe of the solar system . The observation, which is the astronomical equivalent to finding the proverbial needle-in-a-haystack, bolsters proof for a primordial comet reservoir just beyond Neptune , currently the farthest planet from the Sun . ... The comet-disk lies just beyond Neptune and might stretch 500 times farther from the Sun than Earth . ... Comet Introduction Kuiper Belt Objects . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/kuiperpr.htm -- 6.9 Кб -- 15.10.1997
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6966. Neptune's Moon Larissa
Larissa . Neptune VII - 1989N2, 1981N1 . Larissa [LA-ree-suh] is only about 48,800 kilometers (30,300 miles) from Neptune's clouds, and circles the planet in 13 hours, 18 minutes. ... Larissa circles the planet in the same direction as Neptune rotates, and remains close to Neptune's equatorial plane. ... 1989 . ... Mean density (gm/cm^3) . ... The leading side faces forwards in the orbit of Larissa. ... Longitude 0 is at the righthand end of the leading side, and faces Neptune. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/larissa.htm -- 5.0 Кб -- 15.10.1997
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6967. Jupiter's Moon Leda
Leda . Jupiter XIII . Leda [LEE-duh] is the ninth known and smallest satellite of Jupiter. Leda was the queen of Sparta and the mother of Helen and Pollux. The picture shown above is the discovery image of Leda. ... Leda Statistics . ... Mass (Earth = 1) . ... Equatorial radius (km) . ... Equatorial radius (Earth = 1) . ... Mean density (gm/cm^3) . ... Mean distance from Jupiter (km) . ... Rotational period (days) . Orbital period (days) . ... Mean orbital velocity (km/sec) . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/leda.htm -- 3.7 Кб -- 15.10.1997
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6968. Giotto
... The Giotto Spacecraft . ... Nucleus . ... The goal was to come within 500 kilometers (310 miles) of Halley's comet at closest encounter. ... During the Halley encounter, Giotto crossed the bow shock at 1.15 million kilometers (715,000 miles) from the nucleus. ... On July 10, 1992, the Giotto spacecraft successfully completed its second close encounter with a cometary nucleus, when it passed within approximately 200 kilometers (124 miles) of Comet P/Grigg-Skjellerup at 15:30 UTC (ground receive time)...
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Ссылки http://www.iki.rssi.ru/solar/eng/giotto.htm -- 18.8 Кб -- 15.10.1997
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6969. Comet Halley
Halley's Comet . Spacecraft that have visited Halley's Comet . ... Then in 1984 and 1985, five spacecraft from the USSR, Japan and Europe were launched to make a rendezvous with Halley's Comet in 1986. ... This image is a mosaic of 8 images taken by the Giotto spacecraft during the Halley encounter on March 13, 1986. ... Courtesy NASA/JPL) . ... Halley's Comets in 1986 . This image of Halley's Comets was taken during its 1986 appearance. ... Cylindrical Map of the Nucleus of Comet Halley . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/halley.htm -- 8.7 Кб -- 15.10.1997
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6970. Hawaiian Volcanoes
... They rise an average of 4,572 meters (15,000 feet) to reach sea level from their base on the sea floor with the highest (Mauna Loa) climbing an additional 4,170 meters (13,680 feet) above sea level. As shield volcanoes , they are built by thousands of accumulated lava flows growing no more than 3 meters (10 feet) at a time to form a broad, gently sloping, flat domed volcanic cone. ... A'a Lava Flow, Hawaii . ... This flow is about 4 meters (13 feet) thick. ... Pahoehoe Lava Flow, Hawaii . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/hawaii.htm -- 20.9 Кб -- 15.10.1997
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6971. Saturn's Moon Helene
Helene . Saturn XII - 1980S6 . Helene was discovered by P. Laques and J. Lecacheus in 1980 through ground based observations. Helene is called a Dione Trojan satellite because it shares the same orbit as Dione at about 60 degrees ahead of its larger companion. ... 1980 . ... Mean density (gm/cm^3) . Mean distance from Saturn (km) . ... Rotational period (days) . Orbital period (days) . ... Mean orbital velocity (km/sec) . ... Credit: Calvin J. Hamilton) . Saturn Dione Rhea . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/helene.htm -- 4.1 Кб -- 15.10.1997
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6972. Jupiter's Moon Himalia
Himalia . Jupiter VI . Himalia [hih-MAL-yuh] is the tenth known satellite of Jupiter. Himalia was a nymph who bore three sons of Zeus (Jupiter). Very little is known about Himalia. Himalia Statistics . ... Mass (Earth = 1) . ... Equatorial radius (km) . ... Equatorial radius (Earth = 1) . ... Mean density (gm/cm^3) . ... Mean distance from Jupiter (km) . ... Rotational period (days) . ... Orbital period (days) . ... Mean orbital velocity (km/sec) . ... Orbital eccentricity . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/himalia.htm -- 3.5 Кб -- 15.10.1997
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6973. Space History Introduction
... Taken from the NASA/JPL information summary "Our Solar System at a Glance". ... Ancient astronomers observed points of light that appeared to move among the stars. They called these objects planets, meaning wanderers, and named them after Roman deities -- Jupiter , king of the gods; Mars , the god of war; Mercury , messenger of the gods; Venus , the god of love and beauty, and Saturn , father of Jupiter and god of agriculture. ... Space History Rocket History . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/histintr.htm -- 4.4 Кб -- 15.10.1997
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6974. History of Space Exploration
History of Space Exploration . ... Space History Introduction . ... Chronology of Solar System Discovery This is a partial list of past, present, and future planetary and solar missions; for a complete account, please see the Space Exploration Chronology. Space exploration is becoming increasingly internationalized; as a result, the national designations listed here are not completely representative of the true nature of all projects. ... Apollo Lunar Surface Journal . ... Mariner Missions . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/history.htm -- 9.1 Кб -- 15.10.1997
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6975. First X-Rays From a Comet Discovered
A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/hyakutak.htm -- 5.3 Кб -- 15.10.1997
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6976. Saturn's Moon Hyperion
Hyperion . Saturn IV . Hyperion [hi-PEER-ee-en] is one of the smaller moons of Saturn. ... Hyperion might have had a major collision which blew part of the moon away. ... The moon's rotational period is not constant and varies from one orbit to the next. ... Hyperion Statistics . ... Mean density (gm/cm^3) . ... Mean distance from Saturn (km) . ... Orbital period (days) . ... This image of Hyperion was acquired by the Voyager 2 spacecraft on August 25, 1981. Credit: Calvin J. Hamilton) . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/hyperion.htm -- 5.9 Кб -- 15.10.1997
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6977. Saturn's Moon Iapetus
Iapetus . Saturn VI . Iapetus [eye-AP-i-tus] is one of the stranger moons of Saturn. ... Its leading side is dark with a slight reddish color while its trailing side is bright. ... If the dark material is thin, it must be constantly renewed since a meteor impact would punch through the layer to reveal brighter surface material. The dark material may have originated from Phoebe , which has a very low albedo . ... Orbital period (days) . ... Credit: Calvin J. Hamilton) . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/iapetus.htm -- 6.4 Кб -- 15.10.1997
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6978. Sagan Memorial Station (Pathfinder)
... This page contains some of the best images taken by Mars Pathfinder. ... Sojourner Gets Her Rock This "movie" was generated from 23 separate frames taken by the Imager for Mars Pathfinder (IMP) and lasts approximately 8 seconds. ... Sojourner is visible in this image, one of the first taken by the deployed Imager for Mars Pathfinder (IMP) on Sol 3. ... Yogi, a rock taller than rover Sojourner, is the subject of this image, taken by the deployed Imager for Mars Pathfinder (IMP) on Sol 3. ... Mars . ...
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Ссылки http://www.iki.rssi.ru/solar/eng/pathfind.htm -- 7.3 Кб -- 15.10.1997
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6979. Pathfinder Images
... Sojourner has made contact with the rock Yogi in this image, taken with the Imager for Mars Pathfinder (IMP) at 8:45 p.m. PDT on Sol 6. ... Yogi, a rock taller than rover Sojourner, is the subject of this image, taken by the deployed Imager for Mars Pathfinder (IMP) on Sol 3. ... This image was taken on July 5 by the IMP camera. ... The Sojourner rover and undeployed ramps onboard the Mars Pathfinder spacecraft can be seen in this image, by the Imager for Mars Pathfinder (IMP) on July 4 (Sol 1). ...
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Ссылки http://www.iki.rssi.ru/solar/eng/pathindex.htm -- 27.2 Кб -- 15.10.1997
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6980. Galileo Images of Ganymede
Galileo Images of Ganymede . ... Stereo View of Ganymede's Galileo Region . ... One image of the Galileo Regio region was taken June 27, 1996, at a range of 9,515 kilometers (about 5,685 miles) with a resolution of 76 meters. ... Here, 3 images of Ganymede are shown. ... This image was taken when Galileo was 7,448 kilometers (4.628 miles) away from Ganymede; north is to the top of the picture, and sunlight illuminates the surface from the lower left nearly overhead (77 degrees above the horizon). ...
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Ссылки http://www.iki.rssi.ru/solar/eng/galgany.htm -- 17.2 Кб -- 15.10.1997
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