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36901. Martian Clouds
... Views of Martian Clouds . ... Although not as pronounced as on Earth , clouds are common features on Mars. The Martian atmosphere has only a trace of water vapor; however, the temperature and pressure is such that the atmosphere is usually close to saturation and produces clouds. Even from Earth based telescopes, clouds have been observed by transient brightening on the surface of Mars. ... Lee waves . ... Wave clouds . ... Image Credit: Calvin J. Hamilton) . Lee Wave . ... Wave Clouds . ...
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/marscld.htm -- 8.9 Кб -- 15.03.1998
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36902. Neptune
... Rings of Neptune . ... Methane gives Neptune its blue cloud color. Neptune is a dynamic planet with several large, dark spots reminiscent of Jupiter's hurricane-like storms. ... One of the great cloud features, dubbed the Great Dark Spot by Voyager scientists, can be seen toward the center of the image. ... This Voyager 2 image has been processed by computers so that both the clouds' structure in the dark regions near the pole and the bright clouds east of the Great Dark Spot are visible. ...
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/neptune.htm -- 20.3 Кб -- 15.03.1998
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36903. Uranus' Moon Puck
Puck . Uranus XV - 1985U1 . Puck was named after a mischievous fairy in Shakespeare's play Midsummer Night's Dream . It is the tenth known satellite of Uranus and was discovered by Voyager 2 . Puck 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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36904. Ranger 7
... Ranger 7 was designed to achieve a lunar impact trajectory and to transmit high-resolution photographs of the lunar surface during the final minutes of flight. ... Velocity at impact was 2.62 km/sec (1.62 miles per second). ... The television system consisted of a six slow-scan vidicon TV cameras capable of transmitting high-resolution, close-up television pictures of the lunar surface during the final minutes of flight before the spacecraft impacted the lunar surface. ...
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/ranger7.htm -- 6.6 Кб -- 15.03.1998
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36905. Uranus' Satellite Rosalind
Rosalind . Uranus XIII - 1986U4 . Rosalind was named after the daughter of the banished Duke in Shakespeare's play As You Like It . It is the eighth known satellite of Uranus and was discovered by Voyager 2 . Rosalind 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) . ...
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36906. Automated Spacecraft
... Taken from the NASA/JPL information summary "Our Solar System at a Glance". The National Aeronautics and Space Administration's (NASA's) automated spacecraft for solar system exploration come in many shapes and sizes. ... Electrical power is required to operate the spacecraft instruments and systems. ... Between 1959 and 1971, NASA spacecraft were dispatched to study the Moon and the solar environment; they also scanned the inner planets other than Earth -- Mercury , Venus and Mars . ...
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36907. Venera 4
Courtesy of NASA's National Space Science Data Center . ... On-orbit dry mass: 1106.00 kg . Venera 4 was launched from a Tyazheliy Sputnik (67-058B) towards the planet Venus with the announced mission of direct atmospheric studies. On October 18, 1967, the spacecraft entered the Venusian atmosphere and released two thermometers, a barameter, a radio altimeter, and atmospheric density gauge, 11 gas analyzers, and two radio transmitters operating in the DM waveband. ... Space History . ...
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36908. 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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36909. Jupiter Moon Callisto
... Impact craters and associated concentric rings are about the only features to be found on Callisto. ... It has a bright central region that is 600 kilometers in diameter, and its rings extend to 3000 kilometers in diameter. ... This image shows the heavily cratered surface of Callisto. ... Also visible is a fresh, sharp-rimmed crater some 90 km (56 miles) across named Igaluk (center left third of picture), and a bright zone in the south polar area (bottom of image) which could be an impact scar. ...
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36910. Comet Shoemaker-Levy 9
... Comet Tutorial . ... On July 1, 1993 an image was taken with the Hubble Space Telescope (HST) that clearly shows at least 15 individual fragments in one image frame of the train. ... This made an accurate orbit (or orbits) difficult to determine; however, after numerous observations of the comet, astronmers determined that the comet had passed within 96,000 kilometers (60,000 miles) of the center of Jupiter or 25,000 kilometers (16,000 miles) from the cloud tops during the July 8, 1992, approach. ...
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36911. Neptune's Moon Triton
Triton . Neptune I . ... Voyager 2 images showed active geyser-like eruptions spewing nitrogen gas and dark dust particles several kilometers into the atmosphere. ... Voyager 2 obtained this color image of Neptune's large satellite Triton during its close flyby on Aug. ... The polar frosts were sublimating because Triton's orbital and rotational motion causes the sun to shine directly on the polar cap for a period of several decades during Neptune's and Triton's long austral summer. ...
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36912. New Moons of Uranus
New Moons of Uranus . Brent Gladman's Home Page . ... The discovery of two probable distant satellites of Uranus was reported by B. Gladman, P. Nicholson, J. Burns and J. Kavelaars. ... This discovery was reported in the IAU Circular 6764 . ... Discovery image of S/1997 U 2 . This shows the discovery image of brighter of the two new moons of Uranus. ... This shows the discovery image of faint new moons of Uranus. ... This shows another discovery image of faint new moons of Uranus. ... Uranus . ...
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36913. New Discoveries From Galileo
... Jupiter's big moon Ganymede is not only the size of a planet -- it sounds like one too, as heard in audio recordings made from data returned by NASA's Galileo spacecraft released today. ... Characterized by a soaring whistle and hissing static, Ganymede's song reveals that the Solar System's largest moon is also the only one known to possess a planet-like, self-generated magnetic cocoon called a magnetosphere , which shields the moon from the magnetic influence of its giant parent body, Jupiter. ...
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36914. New Satellites of Saturn
New Satellites of Saturn . On July 26, 1995, Amanda Bosh of Lowell Observatory announced the discovery of at least two and perhaps four new satellites of Saturn . The discovery was based upon images taken by the Hubble Space Telescope on May 22, 1995, when Saturn's rings were tilted edge-on to the Earth . ... The two satellites S/1995 S1 and S2 lie inside Saturn's thin, eccentric "F" ring . ... The fourth satellite S/1995 S4 is 6,000 kilometers (3,700 miles) beyond the F ring. ... S/1995 S 3 . ...
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36915. Galileo Images of Io
Galileo Images of Io . ... This image was taken at 5 hours 30 minutes Universal Time on November 9, 1996 through the green-yellow filter of the solid state imaging (CCD) system aboard NASA's Galileo spacecraft. ... The mottled face of Jupiter's volcanically active moon Io, viewed by the Galileo spacecraft, shows dramatic changes since it was seen 17 years ago by the exploratory NASA spacecraft Voyagers 1 and 2 . ... The Voyager image was taken from about 800,000 kilometers (about 500,000 miles). ...
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36916. Saturn's Moon Titan
Titan . ... Hubble Space Telescope Images of Titan's surface . ... Later that year, it will release the European-built Huygens probe for a descent through Titan's atmosphere. ... This artist's rendering shows the European Space Agency's Huygens probe descending into the atmosphere of Saturn's moon Titan after being released by NASA's Cassini spacecraft. ... This artist's rendering shows the Huygens probe on the surface of Saturn's moon Titan after being released by NASA's Cassini spacecraft. ...
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36917. 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 . ...
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/venera6.htm -- 3.4 Кб -- 15.03.1998
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36918. Mars Pathfinder
... The mission will consist of a stationary lander and a surface rover. The mission has the primary objective of demonstrating the feasibility of low-cost landings on and exploration of the Martian surface. ... The spacecraft will be launched in December 1996 for an arrival on Mars in July 1997. The scientific objectives include atmospheric entry science, long-range and close-up surface imaging, with the general objective being to characterize the Martian environment for further exploration. ...
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36919. Pluto and Charon
... Pluto's orbit is also highly inclined -- tilted 17 degrees to the orbital plane of the other planets. ... Ground-based observations indicate that Pluto's surface is covered with methane ice and that there is a thin atmosphere that might freeze and fall to the surface as the planet moves away from the Sun. ... This is the first image-based surface map of the solar system's most remote planet, Pluto. ... This is the first surface map of Charon, the moon of the solar system's most remote planet, Pluto....
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36920. Mars 96
Russia Mars Orbiter/Lander . The Mars 96 mission was launched on November 16, 1996. ... Mars 96 consisted of an orbiter, two soft landers, and two surface penetrators that were to be used to study the Red Planet. The orbiter include: 12 instruments; seven plasma measuring instruments; and three astrophysics instruments. ... The spacecraft was to create a high-resolution map of the surface and conduct measurements that would identify mineral deposits, surface composition, and crust structure. ...
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/mars96.htm -- 4.3 Кб -- 15.03.1998
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