加载中…卡西尼号飞船提供土星和地球的全新图像
(2013-11-26 10:25:47)
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杂谈 |
分类： 科学与技术 |
http://photos.state.gov/libraries/amgov/3234/Week_3/11182013_PIA17172_fig2_jpg_600.jpg
美国国家航空航天局（NASA）公布了一幅从太空中拍摄的土星的自然色图像，土星及其卫星和光环、地球、 金星以及火星第一次同时出现在人们眼前。
美国国家航空航天局“卡西尼号”飞船（Cassini）拍摄的土星系统的最新全景多视图11月12日在华盛顿新闻博物馆（Newseum）揭幕， 使人们看到用肉眼看不到的景象。
为了创造全景，卡西尼号的成像小组对141幅广角图像进行了处理。这幅图像覆盖横跨土星651,591平方公里及其内环系统的范围，包括土星第二层外环E环（E ring）外的所有土星环。从透视的角度看，地球与我们月亮之间的距离正好位于E环的覆盖面内。
位于科罗拉多州博尔德市（Boulder，Colorado）的航天科学研究所（Space Science Institute）卡西尼号图像小组组长卡罗琳·波可（Carolyn Porco）说，“在这幅壮观的图像中，卡西尼号为我们带来了一个充满奇迹的宇宙。拍摄这幅图像的那一天，世界各地所有的人同时欢笑，庆祝在一个淡蓝色小点上活着的喜悦。”
这幅多视图是卡西尼号“向土星招手”活动（Wave at Saturn）的一部分。7月19日，人们第一次提前收到一艘飞船正从遥远的距离拍摄他们的通知。美国国家航空航天局邀请公众通过在他们地区的天空中找到土星，向这颗带着光环的行星招手并在因特网上分享照片。
如需了解全新照片背后科学的更多信息，请参阅美国国家航空航天局的新闻公告。
Read more: http://iipdigital.usembassy.gov/st/chinese/inbrief/2013/11/20131122287754.html#ixzz2liN23sym
Cassini Spacecraft Provides New View of Saturn and Earth
http://photos.state.gov/libraries/amgov/3234/Week_3/11182013_PIA17172_fig2_jpg_600.jpg
NASA has released a natural-color image of Saturn from space, the first in which Saturn, its moons and rings, and Earth, Venus and Mars, all are visible.
The new panoramic mosaic of the Saturn system taken by NASA’s Cassini spacecraft, which shows the view as it would be seen by human eyes, was unveiled at the Newseum in Washington on November 12.
Cassini’s imaging team processed 141 wide-angle images to create the panorama. The image sweeps 651,591 kilometers across Saturn and its inner ring system, including all of Saturn’s rings out to the E ring, which is Saturn’s second outermost ring. For perspective, the distance between Earth and our moon would fit comfortably inside the span of the E ring.
“In this one magnificent view, Cassini has delivered to us a universe of marvels,” said Carolyn Porco, Cassini’s imaging team lead at the Space Science Institute in Boulder, Colorado. “And it did so on a day people all over the world, in unison, smiled in celebration at the sheer joy of being alive on a pale blue dot.”
The mosaic is part of Cassini’s “Wave at Saturn” campaign, where on July 19, people for the first time had advance notice a spacecraft was taking their picture from planetary distances. NASA invited the public to celebrate by finding Saturn in their part of the sky, waving at the ringed planet and sharing pictures over the Internet.
For more on the science behind the new image, see the NASA press release.
Read more: http://iipdigital.usembassy.gov/st/english/inbrief/2013/11/20131118287012.html#ixzz2liN3MUJH
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