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10901. APOD: April 8, 1997 - Comet Hale-Bopp Over New York City
... April 8, 1997 . Comet Hale-Bopp Over New York City . ... It's Comet Hale-Bopp ! Both faster than a speeding bullet and able to "leap" tall buildings in its single orbit , Comet Hale-Bopp is also bright enough to be seen even over the glowing lights of one of the world's premier cities . In the foreground lies the East River, while much of New York City 's Lower Manhattan can be seen between the river and the comet. ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap970408.html -- 4.4 Кб -- 21.12.2007
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10902. APOD: April 6, 1997 - Mercury Astronauts and a Redstone
... April 6, 1997 . Mercury Astronauts and a Redstone . Credit: NASA . Explanation : Space suited project Mercury astronauts John H. Glenn , Virgil I. Grissom , and Alan B. Shepard Jr. (left to right) are pictured here posing in front of a Redstone rocket in this vintage 1961 NASA publicity photo. ... Shortly after the first U.S. manned flight on May 5, 1961, a suborbital flight piloted by Alan Shepard, President Kennedy announced the goal of a manned lunar landing by 1970. ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap970406.html -- 4.4 Кб -- 21.12.2007
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10903. APOD: April 5, 1997 - A Black Hole in M87?
... April 5, 1997 . A Black Hole in M87? ... In this 1994 photograph by the Hubble Space Telescope , a disk of hot gas was found to be orbiting at the center of this massive elliptical galaxy . ... The rotation speed of gas in this disk indicates the mass of the object the gas is orbiting, while the size of the disk indicates an approximate volume of the central object. These observations yield a central density so high that the only hypothesized object that could live there is a black hole . ...
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Ссылки http://www.sai.msu.su/apod/ap970405.html -- 4.4 Кб -- 21.12.2007
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10904. APOD: April 4, 1997 - Hale-Bopp in Stereo
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. April 4, 1997 . Hale-Bopp In Stereo . Credit and Copyright: Jack H. Modjallal and Mack H. Frost . Explanation : This stereo pair of Hale-Bopp images combines two pictures from slightly different viewing angles. ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap970404.html -- 4.2 Кб -- 21.12.2007
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10905. APOD: April 3, 1997 - Earth, Clouds, Sky, Comet
... April 3, 1997 . Earth, Clouds, Sky, Comet . ... Explanation : Does a comet's dust tail always orbit behind it? ... Small ice and dust particles expelled by the comet, however, are literally pushed around by sunlight. ... When the comet is headed inward, sunlight slows down small particles so they orbit behind the comet. When the comet is headed back out though, sunlight speeds them up, so small particles orbit in front of the comet. ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap970403.html -- 4.2 Кб -- 21.12.2007
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10906. APOD: April 2, 1997 - A Complete Aurora
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. April 2, 1997 . A Complete Aurora . ... U. Iowa ), Polar , VIS , NASA . Explanation : Aurora frequently make complete rings around a pole of the Earth. ... A complete aurora l oval is normally hard to photograph because part of it usually occurs over a brightly sunlit portion of the Earth. ... About APOD > . ... NASA Technical Rep.: ...
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Ссылки http://www.sai.msu.su/apod/ap970402.html -- 4.5 Кб -- 21.12.2007
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10907. APOD: April 1, 1997 - Hale-Bopp and Andromeda
... April 1, 1997 . Hale-Bopp and Andromeda . ... At the time of this picture, March 27 th , Comet Hale-Bopp was about 10 light-minutes from the Earth , while M31 remained about 3 million light- years distant. By contrast, light can cross the Earth in about 1/20 th of a second, and light takes about one second to reach Earth's Moon . ... In contrast, Comet Halley in 1987 was measured to be 15 km, and Comet Hyakutake in 1996 was estimated to be no more than 10 km. ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap970401.html -- 4.3 Кб -- 21.12.2007
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10908. APOD: March 31, 1997 - NGC 3242: The 'Ghost of Jupiter' Planetary Nebula
... March 31, 1997 . NGC 3242: The 'Ghost of Jupiter' Planetary Nebula . ... WFPC2 , HST , NASA . Explanation : It's a weed , it's Jupiter , no it's - actually planetary nebula NGC 3242. ... NGC 3242 is such a planetary nebula, with the stellar remnant white dwarf star visible at the center. This nebula is sometimes called "The Ghost of Jupiter" for its similar appearance to the familiar planet. NGC 3242 is much farther away however, than the measly 40 light-minutes distance to Jupiter . ...
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Ссылки http://www.sai.msu.su/apod/ap970331.html -- 4.6 Кб -- 21.12.2007
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10909. APOD: March 30, 1997 - Dusty Galaxy Centaurus A
... March 30, 1997 . Dusty Galaxy Centaurus A . ... Cen A is marked by dramatic dust lanes that run across the galaxy's center. These dust lanes are so thick they almost completely obscure the galaxy's center in visible light. Our Milky Way Galaxy contains dust, but not in the same proportion. Cen A is also unusual compared to a normal galaxy because it contains a higher proportion of young blue stars, is a very strong source of radio emission, and has a unique structure. ...
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Ссылки http://www.sai.msu.su/apod/ap970330.html -- 4.0 Кб -- 21.12.2007
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10910. APOD: March 29, 1997 - The Closest Galaxy: The Sagittarius Dwarf
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. March 29, 1997 . The Closest Galaxy: The Sagittarius Dwarf . ... Explanation : What's the closest galaxy to our Milky Way ? For many years astronomers thought it was the Large Magellanic Cloud (LMC). ... The distance to the Sagittarius Dwarf was recently measured to be about one third of the distance to the LMC. ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap970329.html -- 4.3 Кб -- 21.12.2007
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10911. APOD: March 28, 1997 - A Comet In The Sky
... March 28, 1997 . A Comet In The Sky . ... Explanation : It has been suggested that Comet Hale-Bopp will become the most viewed comet in Human history . Presently, for denizens of the Earth's northern hemisphere, this bright comet is certainly a lovely and inspiring sight -- visible here crowning the sky above Cortina d'Ampezzo, Italy on March 20. Based on orbital calculations , this comet's last passage through the inner Solar System was approximately 4,200 years ago. ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap970328.html -- 4.4 Кб -- 21.12.2007
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10912. APOD: March 27, 1997 - Comet Country
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. March 27, 1997 . Comet Country . ... Inspired by painters of the American West, like Fredric Remington, Charles Russell , and George "Dee" Smith, photographer Dewey Vanderhoff of Cody, Wyoming has taken advantage of the double blessings of a bright Moon and a bright comet to produce this breathtaking image . ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap970327.html -- 4.2 Кб -- 21.12.2007
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10913. APOD: March 26, 1997 - The City Comet
... March 26, 1997 . The City Comet . ... Explanation : Undaunted by the artificial glow from one of the most famous urban skylines on Earth, comet Hale-Bopp shines above the city of New York, USA . ... The comet lies at a distance of about 120 million miles from New York. As bright as this comet has turned out to be, it might have been even brighter. ... At that distance, Hale-Bopp might have been 100 times brighter than it is now, reaching -5th or -6th magnitude ! ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap970326.html -- 4.2 Кб -- 21.12.2007
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10914. APOD: March 25, 1997 - Hale-Bopp Brightest Comet This Century
... March 25, 1997 . Hale-Bopp Brightest Comet This Century . ... Explanation : A comet as bright as Comet Hale-Bopp is very rare indeed. No comet has emitted or reflected this much light since possibly the Great Comet of 1811 . However, since Comet Hale-Bopp is across the inner Solar System from us, it does not appear as bright as Comet West did in 1975. The Great Comet of 1996, Comet Hyakutake , was relatively dim but also appeared bright since it passed close to the Earth. ...
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Ссылки http://www.sai.msu.su/apod/ap970325.html -- 4.0 Кб -- 21.12.2007
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10915. APOD: March 24, 1997 - The Weather on Mars
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. March 24, 1997 . The Weather on Mars . Credit: D. Crisp & WFPC2 Team ( JPL / Caltech ), HST , NASA . Explanation : Would Mars be a nice place to visit? ... The picture shows the onset of Martian summer (northern hemisphere) when, apparently, the northern polar cap recedes to uncover dark sand dunes. ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap970324.html -- 4.3 Кб -- 21.12.2007
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10916. APOD: March 23, 1997 - A String Of Pearls
... March 23, 1997 . A String Of Pearls . ... Explanation : Comet Shoemaker-Levy 9 , named after its co-discoverers , was often referred to as the "string of pearls" comet. ... The comet's original single nucleus was torn to pieces by Jupiter's strong gravity during a close encounter with the solar system's largest planet in 1992. The pieces are seen in this composite of Hubble Space Telescope images to be "pearls" strung out along the comet's orbital path. ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap970323.html -- 4.2 Кб -- 21.12.2007
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10917. APOD: March 22, 1997 - M64: The Sleeping Beauty Galaxy
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. March 22, 1997 . M64: The Sleeping Beauty Galaxy . ... Explanation : The Sleeping Beauty galaxy may appear peaceful at first sight but it is actually tossing and turning. In an unexpected twist, recent observations have shown that the center of this photogenic galaxy is rotating in the opposite direction than the outer regions! ...
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Ссылки http://www.sai.msu.su/apod/ap970322.html -- 4.1 Кб -- 21.12.2007
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10918. International Supernovae Network
... NGC 2500 UGC 4165 IRAS 07581+5052 08 01 53.6 +50 44 18 GALAXY 11.6v 2.9'x2.7' .SBT7.. RC3 .. NGC 2549 UGC 4313 PGC 23313 08 18 58.4 +57 48 11 GALAXY 11.2v 3.9'x1.3' .LAR0./ p.a. 177 RC3 .. ... NGC 2639) UGC 4544 IRAS 08400+5023 08 43 38.0 +50 12 24 GALAXY 11.7v 1.8'x1.1' RSAR1*$ p.a. 140 RC3 PGC 24507 UGC 4544 08 43 38.9 +50 11 58 GALAXY --- --- --- PGC .. ... RC3 NGC 3625 UGC 6348 PGC 34718 11 20 31.7 +57 46 55 GALAXY 13.9p 2.0'x0.7' .SXS3*. p.a. 148 RC3 .. ...
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Ссылки http://www.sai.msu.su/mirrors/isn/galcord.htm -- 39.3 Кб -- 20.12.2007
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10919. International Supernovae Network
... Galaxy ---------------------------------------------------------------- 1909A B13.5 5457 1912A 13.0 2841 1917A 14.6 6946 1937A 15.5 4157 1939C 13.4 6946 1940A 14.3 5907 1940C 16.3 I1099 1940D 15.0 4545 1946A 18.0 3977 1948B 14.0 6946 1950M? 14.5 3266 1951H 17.5 5457 1953G 16.5 A1056+50 1953H 17.0 A1100+50 1954C 14.9 5879 1954J B16.5 2403 1954K 15.0 A0841+61 1955A 16.0 4157 1955E 16.3 4335 1956A 12.5 3992 1957A ...
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Ссылки http://www.sai.msu.su/mirrors/isn/listsne.htm -- 3.3 Кб -- 20.12.2007
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10920. Atlas-1
... Click on ' more info ' link to visualize supernova data, if available. ... INFO . ... NGC 4374 . ... NGC 4564 . ... NGC 5236 . ... NGC 4321 . ... NGC 1532 . ... Evans . ... NGC 1316 . ... NGC 4753 . ... NGC 1448 . ... NGC 1365 . ... NGC 3169 . ... NGC 1559 . ... NGC 991 . ... NGC 7184 . ... NGC 3675 . ... NGC 4045 . ... NGC 4451 . ... NGC 1433 . ... NGC 3367 . ... NGC 5128 . ... NGC 5850 . ... NGC 2336 . ... NGC 150 . ... Puckett . ... Armstrong . ... UGC 11861 . ... 1999 B . ... 2000 B . ... 2001 A...
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Ссылки http://www.sai.msu.su/mirrors/isn/SNEASTRF.HTM -- 96.3 Кб -- 20.12.2007
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