File:Mercury_in_color_-_Prockter07_centered.jpg
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![File:Mercury in color - Prockter07 centered.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/3/30/Mercury_in_color_-_Prockter07_centered.jpg/605px-Mercury_in_color_-_Prockter07_centered.jpg)
原始文件 (1,991 × 1,974像素,文件大小:1.72 MB,MIME类型:image/jpeg)
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摘要
描述Mercury in color - Prockter07 centered.jpg |
Русский: Полноцветное изображение Меркурия, полученное во время первого пролёта космического аппарата «Мессенджер». |
日期 | |
来源 | NASA/JPL |
作者 | NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington. Edited version of Image:Mercury in color - Prockter07.jpg by Papa Lima Whiskey. |
其他版本 |
本檔案衍生自: Slightly different crop: File:Mercury in color - Prockter07-edit1.jpg |
- Original caption
MESSENGER's Wide Angle Camera (WAC), part of the Mercury Dual Imaging System (MDIS), is equipped with 11 narrow-band color filters. As the spacecraft receded from Mercury after making its closest approach on January 14, 2008, the WAC recorded a 3x3 mosaic covering part of the planet not previously seen by spacecraft. The color image shown here was generated by combining the mosaics taken through the WAC filters that transmit light at wavelengths of 1000 nanometers (infrared), 700 nanometers (far red), and 430 nanometers (violet). These three images were placed in the red, green, and blue channels, respectively, to create the visualization presented here. The human eye is sensitive only across the wavelength range from about 400 to 700 nanometers. Creating a false-color image in this way accentuates color differences on Mercury's surface that cannot be seen in black-and-white (single-color) images.
Color differences on Mercury are subtle, but they reveal important information about the nature of the planet's surface material. A number of bright spots with a bluish tinge are visible in this image. These are relatively recent impact craters. Some of the bright craters have bright streaks (called "rays" by planetary scientists) emanating from them. Bright features such as these are caused by the presence of freshly crushed rock material that was excavated and deposited during the highly energetic collision of a meteoroid with Mercury to form an impact crater. The large circular light-colored area in the upper right of the image is the interior of the Caloris basin. Mariner 10 viewed only the eastern (right) portion of this enormous impact basin, under lighting conditions that emphasized shadows and elevation differences rather than brightness and color differences. MESSENGER has revealed that Caloris is filled with smooth plains that are brighter than the surrounding terrain, hinting at a compositional contrast between these geologic units. The interior of Caloris also harbors several unusual dark-rimmed craters, which are visible in this image. The MESSENGER science team is working with the 11-color images in order to gain a better understanding of what minerals are present in these rocks of Mercury's crust.
The diameter of Mercury is about 4880 kilometers (3030 miles). The image spatial resolution is about 2.5 kilometers per pixel (1.6 miles/pixel). The WAC departure mosaic sequence was executed by the spacecraft from approximately 19:45 to 19:56 UTC on January 14, 2008, when the spacecraft was moving from a distance of roughly 12,800 to 16,700 km (7954 to 10377 miles) from the surface of Mercury.
许可协议
Public domainPublic domainfalsefalse |
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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。) | ![]() |
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原始上传日志
This image is a derivative work of the following images:
- Image:Mercury_in_color_-_Prockter07.jpg licensed with PD-USGov-NASA, PD-USGov-NASA/copyright
- 2008-02-18T06:16:52Z Superm401 3000x2025 (1325745 Bytes) Reverted to version as of 01:42, 31 January 2008
- 2008-01-31T01:52:50Z Kwamikagami 2072x2025 (1091977 Bytes)
- 2008-01-31T01:42:24Z Kwamikagami 3000x2025 (1325745 Bytes) {{Information |Description=Full color image of Mercury from first MESSENGER flyby |Source=NASA/APL |Date=2008 Jan 30 |Author=NASA |Permission=public |other_versions=color version of [[Image:MESSENGER first photo of unseen sid
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说明
共享资源质量评价 简体中文(已转写)
30 1 2008
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日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
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当前 | 2008年6月4日 (三) 12:49 | ![]() | 1,991 × 1,974(1.72 MB) | Papa Lima Whiskey | {{Information |Description=Full color image of from first MESSENGER flyby |Source=NASA/JPL [http://messenger.jhuapl.edu/gallery/sciencePhotos/image.php?page=1&gallery_id=2&image_id=143] |Date=2008-01-30 |Author=NASA/[[w:Applied Physics Laborato |
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元数据
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方向 | 正常 |
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水平分辨率 | 300 dpi |
垂直分辨率 | 300 dpi |
使用软件 | GIMP 2.4.4 |
文件修改日期时间 | 2008年6月4日 (三) 14:42 |
色彩空间 | sRGB |
图像宽度 | 3,000 px |
图像高度 | 2,025 px |
数字化日期时间 | 2008年1月23日 (三) 17:34 |
元数据最后修改日期 | 2008年1月23日 (三) 17:34 |