File:Stickney_mro.jpg
維基百科,自由的 encyclopedia
原始文件 (1,836 × 1,362像素,文件大小:1.5 MB,MIME类型:image/jpeg)
摘要
描述Stickney mro.jpg |
Stickney crater, Phobos. Imaged by Mars Reconnaissance Orbiter, 23 March 2008. http://photojournal.jpl.nasa.gov/catalog/PIA10368 The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter took two images of the larger of Mars' two moons, Phobos, within 10 minutes of each other on 23 March 2008. This is the first, taken from a distance of about 6,800 kilometers (about 4,200 miles). It is presented in color by combining data from the camera's blue-green, red, and near-infrared channels. The illuminated part of Phobos seen in the images is about 21 kilometers (13 miles) across. The most prominent feature in the images is the large crater Stickney in the lower right. With a diameter of 9 kilometers (5.6 miles), it is the largest feature on Phobos. The color data accentuate details not apparent in black-and-white images. For example, materials near the rim of Stickney appear bluer than the rest of Phobos. Based on analogy with materials on our own moon, this could mean this surface is fresher, and therefore younger, than other parts of Phobos. A series of troughs and crater chains is obvious on other parts of the moon. Although many appear radial to Stickney in this image, recent studies from the European Space Agency's Mars Express orbiter indicate that they are not related to Stickney. Instead, they may have formed when material ejected from impacts on Mars later collided with Phobos. The lineated textures on the walls of Stickney and other large craters are landslides formed from materials falling into the crater interiors in the weak Phobos gravity (less than one one-thousandth of the gravity on Earth). In the full-resolution version of this image, a pixel encompasses 6.8 meters (22 feet), providing a resolution (smallest visible feature) of about 20 meters (about 65 feet). The image is in the HiRISE catalog as PSP_007769_9010. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter for NASA's Science Mission Directorate, Washington. Lockheed Martin Space Systems, Denver, is the prime contractor for the project and built the spacecraft. The High Resolution Imaging Science Experiment is operated by the University of Arizona, Tucson, and the instrument was built by Ball Aerospace & Technologies Corp., Boulder, Colo. |
日期 | |
来源 | English Wikipedia - Original image and description. |
作者 | NASA/JPL-Caltech/University of Arizona |
许可协议
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:
|
23 3 2008
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 | 2009年6月10日 (三) 17:13 | 1,836 × 1,362(1.5 MB) | Qwark | {{Information |Description= Stickney crater, Phobos. Imaged by Mars Reconnaissance Orbiter, March 23, 2008. |Source= English Wikipedia |Date= March 23, 2008 |Author= NASA |Permission= |other_versions= }} Category:NASA images <!--{{ImageUpload|basic}}- |
文件用途
全域文件用途
以下其他wiki使用此文件:
- azb.wikipedia.org上的用途
- bn.wikipedia.org上的用途
- bs.wikipedia.org上的用途
- ca.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
- fr.wikipedia.org上的用途
- fy.wikipedia.org上的用途
- gl.wikipedia.org上的用途
- he.wikipedia.org上的用途
- ja.wikipedia.org上的用途
- ms.wikipedia.org上的用途
- pl.wikipedia.org上的用途
- pt.wikipedia.org上的用途
- ro.wikipedia.org上的用途
- sh.wikipedia.org上的用途
- sr.wikipedia.org上的用途
- uk.wikipedia.org上的用途
- vi.wikipedia.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 |
---|