File:Titan S. polar lake changes 2004-5.jpg
原始文件 (1,950 × 958像素,文件大小:289 KB,MIME类型:image/jpeg)
说明
摘要
[编辑]描述Titan S. polar lake changes 2004-5.jpg |
English: These mosaics of the south pole of Saturn’s moon Titan, made from images taken almost one year apart, show changes in dark areas that may be lakes filled by seasonal rains of liquid hydrocarbons.
The image on the left was acquired July 3, 2004. That on the right was taken June 6, 2005. In the 2005 image, new dark areas are visible and have been circled in the labeled version. The very bright features are clouds in the lower atmosphere (the troposphere). Titan's clouds behave similarly to those on Earth, changing rapidly on timescales of hours and appearing in different places from day to day. During the year that elapsed between these two observations, clouds were frequently observed at Titan's south pole by observers on Earth and by Cassini’s imaging science subsystem (see PIA06124). It is likely that rain from a large storm created the new dark areas that were observed in June 2005. Some features, such as Ontario Lacus, show differences in brightness between the two observations that are the result of differences in illumination between the two observations. These mosaics use images taken in infrared light at a wavelength of 938 nanometers. The images have been oriented with the south pole in the center (black cross) and the 0 degree meridian toward the top. Image resolutions are several kilometers (several miles). The original NASA image has been cropped to remove the versions of the images without labels. |
日期 | |
来源 | http://ciclops.org/view/5458/Changes_in_Titans_Lakes |
作者 | NASA/JPL/Space Science Institute |
其他版本 | http://photojournal.jpl.nasa.gov/catalog/PIA11147 |
许可协议
[编辑]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:
|
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 | 2010年8月7日 (六) 21:53 | 1,950 × 958(289 KB) | LobStoR(留言 | 贡献) | progressive jpeg | |
2009年1月31日 (六) 11:43 | 1,948 × 956(569 KB) | WolfmanSF(留言 | 贡献) | {{Information |Description={{en|1=These mosaics of the south pole of Saturn’s moon Titan, made from images taken almost one year apart, show changes in dark areas that may be lakes filled by seasonal rains of liquid hydrocarbons. The images on the left |
您不可以覆盖此文件。
文件用途
没有页面使用本文件。
全域文件用途
以下其他wiki使用此文件:
- an.wikipedia.org上的用途
- ar.wikipedia.org上的用途
- en.wikipedia.org上的用途
- en.wikiversity.org上的用途
- fr.wikipedia.org上的用途
- gl.wikipedia.org上的用途
- hy.wikipedia.org上的用途
- id.wikipedia.org上的用途
- ja.wikipedia.org上的用途
- mk.wikipedia.org上的用途
- no.wikipedia.org上的用途
- ro.wikipedia.org上的用途
- vi.wikipedia.org上的用途
- zh.wikipedia.org上的用途
元数据
此文件含有额外信息,这些信息可能是创建或数字化该文件时使用的数码相机或扫描仪所添加的。如果文件已从其原始状态修改,某些详细信息可能无法完全反映修改后的文件。
_error | 0 |
---|