跳至內容

File:Chain of impact craters on Ganymede.jpg

頁面內容不支援其他語言。
這個檔案來自維基共享資源
維基百科,自由的百科全書

Chain_of_impact_craters_on_Ganymede.jpg (392 × 398 像素,檔案大小:51 KB,MIME 類型: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
來源 from http://antwrp.gsfc.nasa.gov/apod/ap011215.html (page in NASA Photojournal)
作者 Credit: Galileo Project, Brown University, JPL, NASA

授權條款

Public domain 本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zhNASA版權政策JPL圖像使用政策
警告:

說明

添加單行說明來描述出檔案所代表的內容

在此檔案描寫的項目

描繪內容

著作權狀態 繁體中文 (已轉換拼寫)

斷定方法:​美國聯邦政府的作品 繁體中文 (已轉換拼寫)

多媒體型式 繁體中文 (已轉換拼寫)

image/jpeg

校驗和 繁體中文 (已轉換拼寫)

1d3559e3819f3a256596ad8e347ae0f63093ff19

斷定方法:​SHA-1 中文 (已轉換拼寫)

52,032 位元組

398 像素

392 像素

檔案歷史

點選日期/時間以檢視該時間的檔案版本。

日期/時間縮⁠圖尺寸用戶備⁠註
目前2006年7月21日 (五) 20:14於 2006年7月21日 (五) 20:14 版本的縮圖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

下列3個頁面有用到此檔案:

全域檔案使用狀況

以下其他 wiki 使用了這個檔案:

檢視此檔案的更多全域使用狀況

詮釋資料