跳转到内容

File:Chain of impact craters on Ganymede.jpg

页面内容不支持其他语言。
这个文件来自维基共享资源
维基百科,自由的百科全书

Chain_of_impact_craters_on_Ganymede.jpg (392 × 398像素,文件大小:51 KB,MIME类型:image/jpeg


摘要

描述
English: A chain of craters Enki Catena on Jupiter's moon Ganymede, probably caused by the impact of a fragmented comet. The picture covers an area about 120 miles wide.

This chain of 13 craters probably formed by a comet which was pulled into pieces by Jupiter's gravity as it passed too close to the planet. Soon after this breakup, the 13 fragments crashed onto Ganymede in rapid succession. The Enki craters formed across the sharp boundary between areas of bright terrain and dark terrain, delimited by a thin trough running diagonally across the center of this image. The ejecta deposit surrounding the craters appears very bright on the bright terrain. Even though all the craters formed nearly simultaneously, it is difficult to discern any ejecta deposit on the dark terrain. This may be because the impacts excavated and mixed dark material into the ejecta and the resulting mix is not apparent against the dark background.

North is to the bottom of the picture and the sun illuminates the surface from the left. The image, centered at 39 degrees latitude and 13 degrees longitude, covers an area approximately 214 by 217 kilometers. The resolution is 545 meters per picture element. The image was taken on April 5, 1997 at 6 hours, 12 minutes, 22 seconds Universal Time at a range of 27282 kilometers by the Solid State Imaging (SSI) system on NASA's Galileo spacecraft. The Jet Propulsion Laboratory, Pasadena, CA manages the Galileo mission for NASA's Office of Space Science, Washington, DC.
日期
来源 from http://antwrp.gsfc.nasa.gov/apod/ap011215.html (page in NASA Photojournal)
作者 Credit: Galileo Project, Brown University, JPL, NASA

许可协议

Public domain 本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zhNASA版权方针页面JPL图片使用方针。)
警告:

说明

添加一行文字以描述该文件所表现的内容

此文件中描述的项目

描绘内容

版权状态 简体中文(已转写)

媒体类型 简体中文(已转写)

image/jpeg

校验和 简体中文(已转写)

1d3559e3819f3a256596ad8e347ae0f63093ff19

断定方法:​SHA-1 简体中文(已转写)

数据大小 简体中文(已转写)

52,032 字节

398 像素

392 像素

文件历史

点击某个日期/时间查看对应时刻的文件。

日期/时间缩⁠略⁠图大小用户备注
当前2006年7月21日 (五) 20:142006年7月21日 (五) 20:14版本的缩略图392 × 398(51 KB)Peter439{{Information |Description=A chain of craters on Jupiter's moon Ganymede, probably caused by the impact of a fragmented comet. The picture covers an area about 120 miles wide. |Source= from http://antwrp.gsfc.nasa.gov/apod/ap011215.html |Date=1994 |Author

以下3个页面使用本文件:

全域文件用途

以下其他wiki使用此文件:

查看此文件的更多全域用途

元数据