File:208500main Vivaldi crater.jpg

原始檔案 (1,024 × 1,024 像素,檔案大小:725 KB,MIME 類型:image/jpeg


摘要

描述
English: As MESSENGER approached Mercury on January 14, 2008, the spacecraft’s Narrow-Angle Camera on the Mercury Dual Imaging System (MDIS) instrument captured this view of the planet’s rugged, cratered landscape illuminated obliquely by the Sun. The large, shadow-filled, double ringed crater to the upper right was glimpsed by Mariner 10 more than three decades ago and named Vivaldi, after the Italian composer. Its outer ring has a diameter of about 200 kilometers (about 125 miles). MESSENGER’s modern camera has revealed detail that was not well seen by Mariner 10, including the broad ancient depression overlapped by the lower-left part of the Vivaldi crater. The MESSENGER science team is in the process of evaluating later images snapped from even closer range showing features on the side of Mercury never seen by Mariner 10. It is already clear that MESSENGER’s superior camera will tell us much that could not be resolved even on the side of Mercury viewed by Mariner’s vidicon camera in the mid-1970s. This MESSENGER image was taken from a distance of about18,000 kilometers (11,000 miles), about 56 minutes before the spacecraft's closest encounter with Mercury. It shows a region roughly 500 kilometers (300 miles) across, and craters as small as 1 kilometer (0.6 mile) can be seen in this image.
日期
來源 http://messenger.jhuapl.edu/gallery/sciencePhotos/image.php?gallery_id=2&image_id=118
作者 NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

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)

8c6afe45421999fa6c8340198e7152cc9c93e84c

斷定方法:​SHA-1 中文 (已轉換拼寫)

742,539 位元組

1,024 像素

1,024 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2008年1月16日 (三) 19:39於 2008年1月16日 (三) 19:39 版本的縮圖1,024 × 1,024(725 KB)Bryan Derksen{{Information |Description={{en|As NASA's MESSENGER spacecraft approached Mercury on January 14, 2008, it captured this view of the planet's rugged, cratered landscape illuminated obliquely by the sun. This image was taken from a distance of approximately

下列頁面有用到此檔案:

全域檔案使用狀況

以下其他 wiki 使用了這個檔案:

詮釋資料