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На этой странице приведены все страницы сервера www.arcetri.astro.it ,которые мы индексируем. Показаны документы 36821 - 36840 из 37146.

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36821. Thought-Provoking Imagery Shows Sun's Place in the Galaxy

Thought-Provoking Imagery Shows Sun's Place in the Galaxy . ... SOHO - Explosive Coronal Mass Ejections from the Sun . SOHO-6 Comet at 2-6 solar radii from the Sun . ... The remarkable images come from SOHO's visible-light coronagraph, LASCO, which is able to mask the intense rays from the Sun's surface in order to reveal the much fainter glow of the solar atmosphere, or corona. ... SOHO is ideally placed to report and even anticipate their origins in the Sun's atmosphere. ... The Sun . ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/sohopr1.htm -- 10.8 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/sohopr1.htm -- 10.8 Кб -- 15.03.1998
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36822. Neptune's Moon Thalassa

Thalassa . Neptune IV - 1989N5 . Thalassa appears to be about 80 kilometers (50 miles) in diameter. It orbits Neptune in 7 hours, 30 minutes about 25,200 kilometers (15,700 miles) above the cloud tops. ... Thalassa circles the planet in the same direction as Neptune rotates. The above image has been slightly smeared so that Thalassa appears highly elongated. ... Equatorial radius (km) . ... Mean density (gm/cm^3) . ... Rotational period (days) . Orbital period (days) . ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/thalassa.htm -- 4.6 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/thalassa.htm -- 4.6 Кб -- 15.03.1998
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36823. Zond 8

... Launch Date: 1970-10-20 . ... Zond 8 was launched from an Earth orbiting platform, Tyazheliy Sputnik, towards the Moon. ... The spacecraft obtained photographs of the Earth on October 21 from a distance of 64,480 kilometers (40,070 miles). The spacecraft transmitted flight images of the earth for three days. Zond 8 flew past the Moon on October 24, 1970, at a distance of 1,110.4 kilometers (690 miles) and obtained both black and white and color photographs of the lunar surface. ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/zond8.htm -- 3.6 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/zond8.htm -- 3.6 Кб -- 15.03.1998
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36824. Chronology of Space Exploration

Chronology of Space Exploration . ... Pioneer 0 - USA Lunar Orbiter - (August 17, 1958) First stage exploded. ... Mars 1960A - USSR Mars Probe - (October 10, 1960) Failed to reach Earth orbit. ... Ranger 3 - USA Lunar Hard Lander - 327 kg - (January 26, 1962) Lunar probe missed the moon and is now in a solar orbit. ... Lunar Orbiter 2 - USA Lunar Orbiter - 390 kg - (November 6, 1966) Orbited the moon, photographed the far side for potential Apollo landing sites, then impacted on command. ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/craft1.htm -- 51.8 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/craft1.htm -- 51.8 Кб -- 15.03.1998
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36825. Uranus' Satellite Cressida

Cressida . Uranus IX - 1986U3 . Cressida was named after the daughter of Calchas in Shakespeare's play Troilus and Cressida . It is the forth satellite out from Uranus and was discovered by Voyager 2 . Cressida 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) . ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/cressida.htm -- 4.4 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/cressida.htm -- 4.4 Кб -- 15.03.1998
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36826. Neptune's Moon Despina

Despina . Neptune V - 1989N3 . Despina, only 27,700 kilometers (17,200 miles) from Neptune's clouds, orbits every 8 hours. Its diameter is about 150 kilometers (90 miles). ... Despina circles the planet in the same direction as Neptune rotates, and remains close to Neptune's equatorial plane. Despina Statistics . ... Mean density (gm/cm^3) . Mean distance from Neptune (km) . ... Rotational period (days) . Orbital period (days) . ... Mean orbital velocity (km/sec) . ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/despina.htm -- 4.5 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/despina.htm -- 4.5 Кб -- 15.03.1998
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36827. Earth From Space

... Pictures taken by Gemini astronauts almost 30 years ago are much clearer than those taken by space shuttle astronauts today. ... The plateau is 1,200 kilometers (746 miles) from east to west and 900 kilometers (560 miles) north to south, with a mean elevation of about 4900 meters (16,000 feet). ... Courtesy LPI/NASA. ... Oblique view, Galapagos Islands, Pacific Ocean . ... Like Tupai, it probably originated as a fringing reef developed around a volcanic island that has long since disappeared. ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/earthsp.htm -- 32.0 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/earthsp.htm -- 32.0 Кб -- 15.03.1998
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36828. Asteroid Gaspra

Gaspra . ... On October 29, 1991, Galileo came within 1,600 kilometers (1,000 miles) of Gaspra. ... These two color views of the asteroid Gaspra were produced by combining three images taken through violet, green, and infrared filters by the Galileo spacecraft on October 29, 1991, from a distance of about 16,000 kilometers (10,000 miles). ... The earliest view (upper left) was taken 5 hours, 45 minutes before closest approach when the spacecraft was 164,000 kilometers (102,000 miles) from Gaspra. ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/gaspra.htm -- 9.3 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/gaspra.htm -- 9.3 Кб -- 15.03.1998
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36829. 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 . ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/halley.htm -- 9.6 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/halley.htm -- 9.6 Кб -- 15.03.1998
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36830. 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 . ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/hawaii.htm -- 22.0 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/hawaii.htm -- 22.0 Кб -- 15.03.1998
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36831. 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 . ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/himalia.htm -- 4.3 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/himalia.htm -- 4.3 Кб -- 15.03.1998
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36832. The Planetary Globe Icosahedron Home Page

... The icosahedron is a 20-sided polyhedron with each side made up of an equilateral triangle. ... Each face of the planetary Icosahedron displays a part of the (nearly spherical) planetary surfaces. The triangles are folded so that adjacent triangles are joined exactly at their closest edges. ... Venus Icosahedron . Venus is the 2nd planet from the Sun. ... Earth Icosahedron . Earth is the 3rd planet from the Sun and is the one we appreciate the most since it is the planet we live on. ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/ico.htm -- 5.7 Кб -- 15.03.1998
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36833. Jupiter's Moon Io

... Galileo Images of Io . ... Galileo Finds Giant Iron Core in Jupiter's Moon Io . ... Color Image of Io . This color image of Io was created by combining the color channels of the low resolution USGS Voyager controlled color mosaic with Tayfun Oner's high resolution Galileo mosaic. ... This pair of Hubble images of Jupiter's volcanic moon Io shows the surprising emergence of a 320-kilometer (200-mile) diameter, large yellowish-white feature near the center of the moon's disk (photo on the right). ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/io.htm -- 18.3 Кб -- 15.03.1998
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36834. 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. ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/larissa.htm -- 5.9 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/larissa.htm -- 5.9 Кб -- 15.03.1998
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36835. Mariner 10

Mariner 10 . ... Mariner 10 was the seventh successful launch in the Mariner spacecraft series, and the first to use the gravitational pull of one planet ( Venus ) to reach another ( Mercury ). ... It measured 1.39 meters (4.56 feet) diagonally and 0.457 meters (1.5 feet) in depth. ... Views of Mariner 10 . ... Venus/Mercury Mission . ... Launched in November 1973, this mission provided new information about Mercury and Venus in the Mariner program's first dual-planet mission. ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/marin10.htm -- 8.6 Кб -- 15.03.1998
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36836. Uranus' Moon Miranda

Miranda . Uranus V . ... The resolution at which the larger satellites were photographed was around 2 to 3 kilometers (1.2 to 1.9 miles). ... This high-resolution image of Miranda was acquired by Voyager 2 on January 24, 1986, when the spacecraft was 36,250 kilometers (22,500 miles) from the Uranian moon. ... This Voyager 2 image of Miranda was taken January 24, l986, from a distance of about 31,000 kilometers (19,000 miles), shortly before the spacecraft's closest approach to the Uranian moon. ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/miranda.htm -- 14.3 Кб -- 15.03.1998
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36837. Saturn's Satellite Pan

Pan . ... Pan, the innermost known satellite, was found from photographs taken by Voyager during its encounter with Saturn. ... Pan is located 133,583 kilometers from the center of Saturn and is within the Encke Gap of Saturn's A-ring. ... Orbital period (days) . ... This image shows the small moolet Pan located within the Saturn's Encke gap. ... Pan Within Encke Gap . ... Showalter, Mark R., "Visual detection of 1981S13, Saturn's eighteenth satellite, and its role in the Encke gap," Nature , Vol. ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/pan.htm -- 5.8 Кб -- 15.03.1998
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36838. 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). ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/pathindex.htm -- 28.4 Кб -- 15.03.1998
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36839. Rosetta

... ESA/NASA Solar Probe . ESA Comet Rendevous/Landing . ... It will carry two probes to land on the comet's surface and perform in-situ measurements. ... After launch in January 2003, Rosetta will fly out to Mars for a gravity assist and return for an Earth flyby approximately 3 years after launch. ... After the asteroid flyby, the spacecraft enters a heliocentric drift phase to intercept the comet at a point close enough to allow communication with the Earth. ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/rosetta.htm -- 5.8 Кб -- 15.03.1998
[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/~baffa/Astro/solar/eng/rosetta.htm -- 5.8 Кб -- 15.03.1998
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36840. SOHO

... ESA/NASA Solar Probe . Courtesy of NASA's National Space Science Data Center . SOHO - The Solar and Heliospheric Observatory . ... Twelve instruments comprise the payload, producing a continuous stream of data at 40 kbs, except when the solar oscillations imager Michelson Doppler Imager (MDI) is operated in high-bit-rate mode, producing 160 kbs. ... Magnetic tape stores data between telemetry contacts with the Experiment Operations Facility, located at NASA Goddard Space Flight Center. ...

[ Сохраненная копия ] Ссылки http://www.arcetri.astro.it/irlab/Astro/solar/eng/soho.htm -- 4.8 Кб -- 15.03.1998
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