File:Maxwell Montes, 778-,663,-115.jpg

原始文件 (5,120 × 4,600像素,文件大小:5.28 MB,MIME类型:image/jpeg


摘要

描述
English: Venus - Maxwell Montes and Cleopatra Crater

Original Caption Released with Image:

This Magellan full-resolution image shows Maxwell Montes, and is centered at 65 degrees north latitude and 6 degrees east longitude. Maxwell is the highest mountain on Venus, rising almost 11 kilometers (6.8 miles) above mean planetary radius. The western slopes (on the left) are very steep, whereas the eastern slopes descend gradually into Fortuna Tessera. The broad ridges and valleys making up Maxwell and Fortuna suggest that the topography resulted from compression. Most of Maxwell Montes has a very bright radar return; such bright returns are common on Venus at high altitudes. This phenomenon is thought to result from the presence of a radar reflective mineral such as pyrite. Interestingly, the highest area on Maxwell is less bright than the surrounding slopes, suggesting that the phenomenon is limited to a particular elevation range. The pressure, temperature, and chemistry of the atmosphere vary with altitude; the material responsible for the bright return probably is only stable in a particular range of atmospheric conditions and therefore a particular elevation range. The prominent circular feature in eastern Maxwell is Cleopatra. Cleopatra is a double-ring impact basin about 100 kilometers (62 miles) in diameter and 2.5 kilometers (1.5 miles) deep. A steep-walled, winding channel a few kilometers wide breaks through the rough terrain surrounding the crater rim. A large amount of lava originating in Cleopatra flowed through this channel and filled valleys in Fortuna Tessera. Cleopatra is superimposed on the structures of Maxwell Montes and appears to be undeformed, indicating that Cleopatra is relatively young.
日期
来源 http://photojournal.jpl.nasa.gov/catalog/PIA00149
作者 NASA/JPL

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:
註解
InfoField
該圖片含有註解:在維基媒體共享資源上查看註解

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

描繪內容

5,539,123 字节

4,600 像素

5,120 像素

image/jpeg

7f9ed5e730be8f24c36baaa23a6ebf0dfa6d11db

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2013年10月12日 (六) 00:342013年10月12日 (六) 00:34版本的缩略图5,120 × 4,600(5.28 MB)Sneeuwschaapbrightness increase: levels [0 255] -> [0 220]
2012年2月6日 (一) 00:242012年2月6日 (一) 00:24版本的缩略图5,120 × 4,600(4.74 MB)Lotse{{Information |Description ={{en|1='''Venus - Maxwell Montes and Cleopatra Crater''' Original Caption Released with Image: This Magellan full-resolution image shows Maxwell Montes, and is centered at 65 degrees north latitude and 6 degrees east longi

以下页面使用本文件:

全域文件用途

以下其他wiki使用此文件:

元数据