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meteorobs 发表于 2004-9-16 00:13 | 显示全部楼层 |阅读模式 来自: 中国–天津–天津 电信

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Family Portrait
September 13, 2004  Full-Res: PIA06475  

A stately Saturn poses for a portrait with five of its moons in this Cassini spacecraft wide angle camera view. Satellites visible in this image are (clockwise from upper left): Dione (1,118 kilometers or 695 miles wide), Enceladus (499 kilometers or 310 miles wide), Tethys (1,060 kilometers or 659 miles wide), Mimas (398 kilometers or 247 miles wide) and Rhea (1,528 kilometers or 949 miles wide).
The image was taken in visible red light on Aug. 1, 2004, at a distance of 7.8 million kilometers (4.8 million miles) from Saturn. The image scale is 464 kilometers (288 miles) per pixel.

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Cassini-Huygens mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging team is based at the Space Science Institute, Boulder, Colo.

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