跳至內容

File:Small crater in Daguerre crater AS16-P-4511.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

原始檔案 (670 × 620 像素,檔案大小:67 KB,MIME 類型:image/jpeg


摘要

描述
English: Oblique view facing south of a small, fresh impact crater within the larger Daguerre crater, Mare Nectaris, the moon. The crater is called Daguerre 66 in the caption of 16-mm magazine 1196-B on the Apollo 14 Flight Journal video index.

This image is similar to Figure 111 of Apollo Over the Moon: A View from Orbit (NASA SP-362), which has the following caption:

For easier viewing, this picture is oriented with north at the bottom of the page. It shows the striking bilateral symmetry of the rays of a small (2-km diameter) crater in the floor of the large crater Daguerre in Mare Nectaris. Continuous areas and narrow filaments of light-gray ejecta extend from the crater across the dark mare surface through 270°, but are entirely absent in the southern 90° sector. Within the crater, dark material occurs on the southern crater wall while the remaining walls are bright. (The reader may wonder about the material whose reflectivity cannot be observed because it lies in shadow on the east wall of this crater. Until the area is observed under high Sun conditions, we are forced to make the simplifying assumption that it is bright because most of the materials visible elsewhere in the walls are bright.) This crater probably resulted from the impact of a projectile traveling from south to north along an oblique trajectory. Its pattern of ejecta distribution is similar to that of small craters produced by the impact of missiles along oblique trajectories at the White Sands Missile Range, N. Mex. Some observers postulate that the dark material is a talus deposit of mare material that has fallen into the crater.-H.J.M.
Another geological explanation is that the unusual pattern may be due to an intrinsic characteristic of the local terrain, probably an abrupt lateral change in the composition of the bedrock within the area that was excavated. F.E.-B.
日期
來源

Arizona State University, Apollo Image Archive, Apollo Browse Gallery, Apollo 16 Panoramic Camera

AS16-P-4511
作者 James Stuby based on NASA image
本圖像或影音收錄於美國國家航空暨太空總署 (NASA)某部門,其照片編號為: AS16-P-4511

此標籤不表示文件的著作權狀態。任何文件在附有此標籤的同時還需要一個有效的著作權標籤請參閱許可協議說明頁面以了解更多資訊。
其他語言:

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

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⁠圖尺寸使用者備⁠註
目前2016年6月25日 (六) 03:35於 2016年6月25日 (六) 03:35 版本的縮圖670 × 620(67 KB)JstubyUser created page with UploadWizard

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