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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Presents information, images, animations, and other resources regarding the collision of fragments of Comet P/Shoemaker-Levy 9 with Jupiter, which took place on July 16-22, 1995. Includes FAQs, fact sheets, impact images, artists' renditions of the impact, and observation information. Features papers and progress reports. Links to the Students for the Exploration and Development of Space (SEDS) home page and other Shoemaker-Levy 9 WWW pages.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Presents information, images, animations, and other resources regarding the collision of fragments of Comet P/Shoemaker-Levy 9 with Jupiter, which took place on July 16-22, 1995. Includes FAQs, fact sheets, impact images, artists' renditions of the impact, and observation information. Features papers and progress reports. Links to the Students for the Exploration and Development of Space (SEDS) home page and other Shoemaker-Levy 9 WWW pages.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Features images from 1994 and 1995 of the Comet P/Shoemaker-Levy 9 (SL-9) collision with Jupiter, provided by the National Space Science Data Center (NSSDC) of the National Aeronautics and Space Administration Goddard Space Flight Center in Greenbelt, Maryland.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Describes the Comet P/Shoemaker-Levy 9 collision with Jupiter that occurred during the Summer of 1994. Details the collision and provides images of the event and the comet, including shots of the comet's impact on the planet's surface. Contains photos of the cataclysm taken from several orbital vantage points, including aboard the Hubble Space Telescope (HST) and the Galileo, Ulysses, and Voyager 2 space probes. Offers links to the National Space Science Data Center's (NSSDC) Comet and Asteroid home page and the NSSDC Planetary home page.
Author: Publisher: ISBN: Category : Languages : en Pages : 32
Book Description
The impact of Comet Shoemaker-Levy 9 on Jupiter in July, 1994, was the largest, most energetic impact event on a planet ever witnessed. Because it broke up during a close encounter with Jupiter in 1992, it was bright enough to be discovered more than a year prior to impact, allowing the scientific community an unprecedented opportunity to assess the effects such an event would have. Many excellent observations were made from Earth-based telescopes, the Hubble Space Telescope (HST) and the Galileo spacecraft en route to Jupiter. In this paper, these observations are used in conjunction with computational simulations performed with the CTH shock-physics hydrocode to determine the sizes of the fifteen fragments that made discernible impact features on the planet. To do this, CTH was equipped with a radiative ablation model and a post-processing radiative ray-trace capability that enabled light-flux predictions (often called the impact flash) for the viewing geometries of Galileo and ground-based observers. The five events recorded by Galileo were calibrated to give fragment size estimates. Compared against ground-based and HST observations, these estimates were extended using a least-squares analysis to assess the impacts of the remaining ten fragments. Some of the largest impacts (L, G and K) were greater that 1 km in diameter but the density of the fragments was low, about 0.25 g/cm3. The volume of the combined fifteen fragments would make a sphere 1.8 km in diameter. Assuming a pre-breakup density of 0.5 g/cm3, the parent body of Shoemaker-Levy 9 had a probable diameter of 1.4 km. The total kinetic energy of all the impacts was equivalent to the explosive yield of 300 Gigatons of TNT.
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Author: David H. Levy
Author: Joseph A. Burns
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Author: Fran Bagenal
Author: Harold A. Weaver
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