叶程婉 发表于 2011-3-31 22:18

信使号发回首张环绕水星表面图片

本帖最后由 叶程婉 于 2011-3-31 23:04 编辑

来自约翰霍普金斯大学应用物理实验室信使号官网
http://messenger.jhuapl.edu/gallery/sciencePhotos/image.php?gallery_id=2&image_id=432

http://messenger.jhuapl.edu/gallery/sciencePhotos/pics/EW0209877871I.cal.png

Release Date: March 29, 2011
Topics: WAC

Date acquired: March 29, 2011
Image Mission Elapsed Time (MET): 209877871
Image ID: 65056
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: -53.3°
Center Longitude: 13.0° E
Resolution: 2.7 kilometers/pixel (1.7 miles/pixel)
Scale: Debussy has a diameter of 80 kilometers (50 miles)

Of Interest: Early this morning, at 5:20 am EDT, MESSENGER captured this historic image of Mercury. This image is the first ever obtained from a spacecraft in orbit about the Solar System's innermost planet. Over the subsequent six hours, MESSENGER acquired an additional 363 images before downlinking some of the data to Earth. The MESSENGER team is currently looking over the newly returned data, which are still continuing to come down. Tomorrow, March 30, at 2 pm EDT, attend the NASA media telecon to view more images from MESSENGER's first look at Mercury from orbit.

The dominant rayed crater in the upper portion of the image is Debussy. The smaller crater Matabei with its unusual dark rays is visible to the west of Debussy. The bottom portion of this image is near Mercury's south pole and includes a region of Mercury's surface not previously seen by spacecraft. Compare this image to the planned image footprint to see the region of newly imaged terrain, south of Debussy. Over the next three days, MESSENGER will acquire 1185 additional images in support of MDIS commissioning-phase activities. The year-long primary science phase of the mission will begin on April 4, and the orbital observation plan calls for MDIS to acquire more than 75,000 images in support of MESSENGER's science goals.

On March 17, 2011 (March 18, 2011, UTC), MESSENGER became the first spacecraft to orbit the planet Mercury. The mission is currently in its commissioning phase, during which spacecraft and instrument performance are verified through a series of specially designed checkout activities. In the course of the one-year primary mission, the spacecraft's seven scientific instruments and radio science investigation will unravel the history and evolution of the Solar System's innermost planet. Visit the Why Mercury? section of this website to learn more about the science questions that the MESSENGER mission has set out to answer.



Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

叶程婉 发表于 2011-3-31 22:25

回复 1# 叶程婉


中文翻译,来自 译言网
http://article.yeeyan.org/view/193318/183814
上周信使号探测飞船开始它为期一年的探索任务,每十二小时绕水星一圈。
NASA的信使号花了六年到达指定位置,终于发回水星表面的首张图片。
NASA称:“这是首次环绕太阳系最内侧行星的探测器获得的图片。”
探测器于3月17日到达行星环绕轨道,在之后的六个小时拍摄了363张照片,其中大多数预计今天发布。
NASA解释说,图片上半部分是一个叫做“德彪西”的不一般的暗坑,下半部分则显示了以前从未被探测器拍摄到的水星南极地区。
信使号于六年前发射,穿过太阳系内部,飞越地球、金星和水星。 信使号在近距离探测一段时间后就能发回水星那凹凸不平表面的局部地图。
与离太阳最近行星的亲密接触是一项科学和工程上的里程碑,标志着1975年以来第一次与这颗岩石小行星的邂逅。
天文学家对水星——离太阳最近的行星感兴趣的原因是水星是类地行星而非类木行星。
NASA表示,在太阳系外存在着很多这样的岩石星体,这表示水星还能给研究其他天体提供线索。当然,科学家研究水星还面临着一个高温的挑战,要知道水星表面的温度足以融化铅。
此项目的科学家之一,亚利桑那大学月球和行星实验室的安-斯普拉格说:“现在我们已经在其他星系发现了很多新的行星围绕它们的恒星旋转,我们有必要研究太空风化在岩石表面的作用,以便我们能够准确解释望远镜和其他远程探测到的岩石天体的数据 。”
信使号(messenger)是水星表面,太空环境,地球化学,测距(mercury surface,space environment,gwochemistry and ranging)的首字母缩写,它于2004年8月3日发射飞往水星,在地球、月球和水星之间“舞蹈”,主要是为了防止太阳引力将其拉扯向太阳。      
它每十二小时绕水星一周,将填补早先它两次飞掠和水手十号1974、1975年照片的视觉视角。
有两块太阳能板供能,一个遮日罩保持冷却工作环境的信使号将有助于研究水星地质史、磁场、表面成分以及其他未解之谜。任务结束后,探测器将撞击水星表面。
水星直径只比月球大一点,大约3000英里(约4800千米),应该具有固态核心。但是存在的磁场表面它内部可能是部分熔融态
数十年来,研究水星的科学家只能使用水手十号拍摄的照片,这些图片是沿地面观测的,只能显示水星的一面,数据探测自从火星和陨石坑。
在飞向水星的路上,信使号已经成功拍摄到大部分水手十号遗漏的地区,只有大约百分之五的地区是不可见的。这些地区大部分在极地,信使号在做环绕飞行时将试图拍摄那些地区。

减肥自行车 发表于 2011-3-31 22:29

月亮妹妹~~~你的孪生姐姐上镜啦~~~~~::070821_09.jpg::

魍魉 发表于 2011-3-31 22:31

呵呵 还真的很像月亮!第一次看到水星这么清晰的照片!

水沙二 发表于 2011-3-31 22:38

信使踏上征途的时候我还在高中,现在我大学都毕业了。。。泪目。。。

叶程婉 发表于 2011-3-31 22:40

彩照
http://messenger.jhuapl.edu/gallery/sciencePhotos/pics/first_color.coreg.rgb.png

叶程婉 发表于 2011-3-31 22:43

带标注的图
http://messenger.jhuapl.edu/gallery/sciencePhotos/pics/first_labeled_web.png

1243812554 发表于 2011-3-31 22:46

不会吧,这么像月球?和月亮是一家的......

叶程婉 发表于 2011-3-31 22:48

从轨道上观察水星的地平线
http://messenger.jhuapl.edu/gallery/sciencePhotos/pics/EW0209892080G_web.png

叶程婉 发表于 2011-3-31 22:50

平滑的水星北部平原
http://messenger.jhuapl.edu/gallery/sciencePhotos/pics/EW0209895977G.web.png

叶程婉 发表于 2011-3-31 22:52

简单就是美
http://messenger.jhuapl.edu/gallery/sciencePhotos/pics/EN0209894125M.crop2.png

gohomeman1 发表于 2011-3-31 22:53

楼主请在第一楼给出完整的来源链接

叶程婉 发表于 2011-3-31 23:05

回复 12# gohomeman1


    编辑了一下,不知道合不合版规

gohomeman1 发表于 2011-3-31 23:09

回复 13# 叶程婉

就是这样,以后请照这样格式发。另外copy网页时,最好不要带框复制哦

guayaguil 发表于 2011-4-1 09:14

liangruijian 发表于 2011-4-1 09:43

还是看电视报道比较直观些

14547234 发表于 2011-4-1 10:05

搜星星 发表于 2011-4-1 11:09

是和月亮很像啊。。。。。

www8633068 发表于 2011-4-1 12:13

怎么是黑白照片 没有彩色的么?

zywqy2011 发表于 2011-4-1 13:41

好东东,顶一下...............
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