File:Alpha_Regio_3D.jpg
維基百科,自由的 encyclopedia
原始文件 (5,000 × 4,000像素,文件大小:4.35 MB,MIME类型:image/jpeg)
A portion of Alpha Regio is displayed in this three-dimensional perspective view of the surface of Venus. Alpha Regio, a topographic upland approximately 1300 kilometers across, is centered on 25 degrees south latitude, 4 degrees east longitude. In 1963, Alpha Regio was the first feature on Venus to be identified from Earth-based radar. The radar-bright area of Alpha Regio is characterized by multiple sets of intersecting trends of structural features such as ridges, troughs, and flat-floored fault valleys that, together, form a polygonal outline. Directly south of the complex ridged terrain is a large ovoid-shaped feature named Eve. The radar-bright spot located centrally within Eve originally marked the location of the prime meridian of Venus, but the after the Venera missions, the prime meridian was redefined to pass through the peak at the center of the crater Ariadne. Magellan synthetic aperture radar data is combined with radar altimetry to develop a three-dimensional map of the surface. Ray tracing is used to generate a perspective view from this map. The vertical scale is exaggerated approximately 23 times. Simulated color and a digital elevation map developed by the U. S. Geological Survey are used to enhance small scale structure. The simulated hues are based on color images recorded by the Soviet Venera 13 and 14 spacecraft. The image was produced at the JPL Multimission Image Processing Laboratory by Eric De Jong, Jeff Hall, and Myche McAuley, and is a single frame from the movie released at the March 5, 1991, press conference.
- image source: http://photojournal.jpl.nasa.gov/catalog/PIA00481
Public domainPublic domainfalsefalse |
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/zh、NASA版权方针页面或JPL图片使用方针。) | ||
警告:
|
此文件中描述的项目
描繪內容
image/jpeg
4,559,752 字节
4,000 像素
5,000 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 | 2005年9月1日 (四) 22:10 | 5,000 × 4,000(4.35 MB) | Bricktop | larger | |
2005年8月28日 (日) 21:41 | 645 × 516(60 KB) | Lotse | * '''Original Caption Released with Image:''' A portion of Alpha Regio is displayed in this three-dimensional perspective view of the surface of Venus. Alpha Regio, a topographic upland approximately 1300 kilometers across, is centered on 25 degrees south |
文件用途
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:
- ar.wikipedia.org上的用途
- bn.wikipedia.org上的用途
- ca.wikipedia.org上的用途
- cs.wikipedia.org上的用途
- de.wikipedia.org上的用途
- en.wikipedia.org上的用途
- es.wikipedia.org上的用途
- fi.wikipedia.org上的用途
- fr.wikipedia.org上的用途
- gl.wikipedia.org上的用途
- hi.wikipedia.org上的用途
- hy.wikipedia.org上的用途
- it.wikipedia.org上的用途
- ja.wikipedia.org上的用途
- lb.wikipedia.org上的用途
- lt.wikipedia.org上的用途
- nds.wikipedia.org上的用途
- nl.wikipedia.org上的用途
- nn.wikipedia.org上的用途
- no.wikipedia.org上的用途
- pl.wikipedia.org上的用途
- pt.wikipedia.org上的用途
- ru.wikipedia.org上的用途
- sk.wikipedia.org上的用途
- sr.wikipedia.org上的用途
- uk.wikipedia.org上的用途
- www.wikidata.org上的用途
元数据
此文件中包含有扩展的信息。这些信息可能是由数码相机或扫描仪在创建或数字化过程中所添加。
如果此文件的源文件已经被修改,一些信息在修改后的文件中将不能完全反映出来。
_error | 0 |
---|