Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astronet.ru/db/xware/msg/apod/2007-03-27
Дата изменения: Tue Mar 27 10:23:09 2007
Дата индексирования: Sat Dec 29 11:15:20 2007
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Поисковые слова: mercury surface
Enceladus Creates Saturns E Ring
Astronomy Picture of the Day
    


Enceladus Creates Saturns E Ring
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Enceladus Creates Saturns E Ring
Credit: CICLOPS, JPL, ESA, NASA
Explanation: The active moon Enceladus appears to be making Saturn's E ring. An amazing picture showing the moon at work was taken late last year by the Saturn-orbiting Cassini spacecraft and is shown above. Enceladus is the bright point near the center, right near the center of Saturn's E ring. Streams of ice and water vapor can be seen pouring off Enceladus into the E ring. The above bright image of the normally faint E-ring was made possible by aligning Cassini so that Saturn blocked the Sun. From that perspective, small ring particles reflect incoming sunlight more efficiently. Cassini has now been orbiting Saturn for almost three years, and is scheduled to swoop by the unexpectedly cryovolcanic Enceladus at least several more times.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: Enceladus - saturn rings
Publications with words: Enceladus - saturn rings
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