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101. article TEST National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Visitor Center . ... Kick-Off Ceremony of the Arecibo Observatory 50th Anniversary . ... If you change the setting, it will apply to this article. ... Inherited €аmeans that the permissions from global configuration, parent group and category will be used. Denied €аmeans that no matter what the global configuration, parent group or category settings are, the group being edited cannot take this action on this article. ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=181&Itemid=677 -- 18.7 Кб -- 13.04.2016
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102. Research Areas National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Information . Visitor Center . ... The Observatory . ... Research Areas . ... Radio Astronomy is the study of natural radio energy emitted by galaxies, erupting stars, clouds of gas, pulsars and quasars. The Arecibo Radio Telescope enables astronomers to detect the faint radio emissions from these far off regions of the universe. ... This weak radio echo is collected, focused and detected by the Arecibo Telescope. ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=151&Itemid=649 -- 15.7 Кб -- 13.04.2016
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103. The 305m Telescope National Astronomy and Ionosphere Center (Arecibo
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Visitor Center . ... The Observatory . The 305m Telescope . ... Those who see the Arecibo radio telescope for the first time are astounded by the enormousness of the reflecting surface, or radio mirror. The huge "dish" is 305 m (1000 feet) in diameter, 167 feet deep, and covers an area of about twenty acres. ... The giant size of the reflector is what makes the Arecibo Observatory so special to scientists. ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=150&Itemid=648 -- 17.6 Кб -- 13.04.2016
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104. The Observatory National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... The Arecibo Observatory is part of the National Astronomy and Ionosphere Center (NAIC), a national research center operated by SRI International, USRA and UMET, under a cooperative agreement with the National Science Foundation (NSF). ... As the site of the world's largest single-dish radio telescope, the Observatory is recognized as one of the most important national centers for research in radio astronomy, planetary radar and terrestrial aeronomy. ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=149&Itemid=647 -- 17.6 Кб -- 13.04.2016
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105. Saturn's rings National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Visitor Center . ... Planetary Radar . ... In fall of 1999 and 2000, the rings of Saturn were imaged using the Arecibo S-band radar system by P. Nicholson, D. Campbell, R. French, G. Black and J.-L. Margot. ... A delay-Doppler image of Saturn's rings at a frequency of 2380 MHz (12.6 cm) is compared to a model image constructed by reprojecting a pair of HST images taken at 439 nm. ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=147&Itemid=474 -- 16.4 Кб -- 13.04.2016
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106. Jupiter's satellites National Astronomy and Ionosphere Center (Arecibo
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Visitor Center . ... Planetary Radar . ... A program of delay-Doppler mapping of the Galillean satellites is underway by L. Harcke and colleagues at Stanford University. The surfaces of Europa, Ganymede and Callisto have been imaged in order to determine the surface properties and look for different radar properties of the various terrain types. These maps will be correlated with the Galileo images of the satellites.€а . ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=146&Itemid=474 -- 16.0 Кб -- 13.04.2016
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107. Comets National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Visitor Center . ... Comets . ... Observing conditions were favorable at Arecibo July 5-15 2001, and observing time for both spectroscopy of 18-cm OH lines and S-band radar observations were arranged. The comet nucleus was observed to split into two pieces on April 30. ... Because the comet passed within 0.25 AU of the Earth in early July, when it was visible from Arecibo Observatory, it was fairly well suited to radar observation. ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=145&Itemid=474 -- 18.2 Кб -- 13.04.2016
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108. Asteroids National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Planetary Radar . ... Asteroids . ... Radar imaging of near-Earth asteroids can provide dramatic images with resolutions down to 8 m, comparable to the images obtained by the Galileo and NEAR-Shoemaker spacecraft. ... Asteroid 2001 GQ2 was imaged by the Arecibo radar system during April, 2001 by M. Nolan. ... These radar images of main-belt asteroid 216 Kleopatra were obtained in November, 1999, about one hour apart (Ostro et al 2000, Science). ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=144&Itemid=474 -- 19.2 Кб -- 13.04.2016
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109. The Moon National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Visitor Center . ... Planetary Radar . ... Moon . ... No clear evidence of ice was found, although there are a small number of areas of anomalous backscatter at the south pole, which warrant further study. ... This radar image in delay-Doppler coordinates of the south pole region of the Moon was made at Arecibo in a search for ice in permanently shadowed areas. ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=143&Itemid=474 -- 16.6 Кб -- 13.04.2016
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110. Venus National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Planetary Radar . ... Venus . ... Radar images of Venus were obtained using the Arecibo radar system in August, 1999, and again in March/April, 2001. ... The Arecibo Observatory and the GBT together serve as a radar interferometer with the objective of creating high resolution topographic maps of Maxwell Montes at spatial resolutions adequate to determine the relationship between areas of high reflectivity/low emissivity and altitude. ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=142&Itemid=474 -- 16.5 Кб -- 13.04.2016
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111. Mercury National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Planetary Radar . Mercury . ... One of the major recent successes in the field of planetary radar astronomy was the discovery and mapping of deposits of volatiles on the shadowed floors of impact craters at the poles of Mercury. ... The figure shows the most recent Arecibo 12.6 cm wavelength radar image of the north polar region of Mercury made at a resolution of 1.5 km by J. Harmon (NAIC), P.Perrilat (NAIC) and M. Slade (JPL). ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=141&Itemid=474 -- 16.2 Кб -- 13.04.2016
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112. Visitor Center National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Home . ... Astronomy . ... Visitor Center . Contact . ... Exhibits . ... The World's largest & most sensitive radiotelescope in Arecibo, Puerto Rico. Explore education exhibits which fall under the scrutiny of our radio telescope at the Angel Ramos Foundation visitor center. €а . ... HOME . ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=192&Itemid=638 -- 14.3 Кб -- 13.04.2016
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113. About National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Home . Science . Astronomy . ... Information . Visitor Center . Contact . ... HOME . ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=183&Itemid=470 -- 17.6 Кб -- 13.04.2016
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114. sciencemenu National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Home . ... Astronomy . ... Information . Visitor Center . Contact . ... HOME . ...
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=182&Itemid=470 -- 18.6 Кб -- 13.04.2016
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115. Astronomy National Astronomy and Ionosphere Center (Arecibo Observatory)
. NATIONAL ASTRONOMY AND IONOSPHERE CENTER . NSF . UMET . SRI . USRA . Trip Advisor . Home . Science . Astronomy . Planetary . Atmospheric . Information . Visitor Center . Contact . Donate! . Astronomers Guide . ALFA . тАЛScientific CommunityтАЛ тАЛ . HOME . Science . Information . Visitor Center . Contact . Disclaimer
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Ссылки http://www.naic.edu/general/index.php?option=com_content&view=article&id=177&Itemid=475 -- 14.0 Кб -- 13.04.2016
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116. Contacts National Astronomy and Ionosphere Center (Arecibo Observatory)
NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Information . Visitor Center . Contact . ... For more information please call 787-878-2612, ext. 346 or 312. For group reservations please call or email:€а This e-mail address is being protected from spambots. ... Address: . Arecibo Observatory€а HC-3 Box 53995€а Arecibo, PR 00612 . Physical Address: . ... Esperanza, Arecibo, PR 00612 . ...