APOD251227 阿波罗17号的月球飞船
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图像提供: Apollo 17[1], NASA[2], (Image Reprocessing: Andy Saunders[3])
英文原文:Explanation: Awkward and angular looking, Apollo 17's lunar module Challenger was designed for flight in the near vacuum of space. Digitally enhanced and reprocessed, this picture taken from Apollo 17's command module America shows Challenger's ascent stage in lunar orbit. Small reaction control thrusters are at the sides of the moonship with the bell of the ascent rocket engine underneath. The hatch allowing access to the lunar surface is seen at the front, with a round radar antenna at the top. Mission commander Gene Cernan is clearly visible through the triangular window. This spaceship performed gracefully, landing on the Moon and returning the Apollo astronauts to the orbiting command module in December of 1972. So where is Challenger now? Its descent stage remains at the Apollo 17 landing site in the Taurus-Littrow valley. The ascent stage pictured was intentionally crashed nearby after being jettisoned from the command module prior to the astronauts' return to planet Earth . 说明: 阿波罗17号[4]的登月舱「挑战者号」[5]外型笨拙而棱角分明,专为在太空近乎真空的环境中飞行而设计。 这张经过数字增强和重新处理的照片是从阿波罗17号的指令舱「美国号」[6]所拍摄,显示了挑战者号的上升段在月球轨道上的运行状态。 小型反作用控制推进器位于登月舱两侧,下方是上升火箭引擎的钟形罩。通往月球表面[7]的舱口位于前方,顶部装有圆形雷达天线。 通过三角形窗口,可以清楚地看到任务指挥官尤金·塞尔南。 这艘太空船表现出色,于1972年12月成功登陆月球,并将阿波罗太空人送回轨道上的指令舱。 那么挑战者号现在在哪里呢? 它的下降段仍留在金牛座-利特罗谷的阿波罗17号着陆点[8]。 图中所示的上升段[9]是在太空人返回地球[10]前从指令舱抛弃后,故意坠毁在附近。
明日的图片: It's full of stars![11]
Authors & editors: Robert Nemiroff[12] (MTU[13]) & Jerry Bonnell[14] (UMCP[15])
NASA Official: Amber Straughn Specific rights apply[16].
NASA Web Privacy[17], Accessibility[18], Notices[19];
A service of: ASD[20] at NASA[21] / GSFC[22],
NASA Science Activation[23]
& Michigan Tech. U.[24]
太空天文实验室(成功大学物理系)
<br/> 编辑:<a href="mailto:hantzong.su@gmail.com" style="color:gray;" target="_blank">苏汉宗</a>
编辑:陈炳志[25]
[1]https://nssdc.gsfc.nasa.gov/planetary/lunar/apollo17info.html
[3]https://twitter.com/andysaunders_1
[4]https://www.nasa.gov/mission/apollo-17/
[5]https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1972-096C
[6]https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1972-096A
[7]https://www.hq.nasa.gov/alsj/a17/a17.html
[8]https://science.nasa.gov/resource/lro-apollo-17-landing-site-lithograph/
[9]https://nssdc.gsfc.nasa.gov/planetary/lunar/apollo_impact.html
[11]http://apod.nasa.gov/apod/ap251228.html
[12]http://www.phy.mtu.edu/faculty/Nemiroff.html
[14]https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
[16]http://apod.nasa.gov/apod/lib/about_apod.html#srapply
[17]https://www.nasa.gov/about/highlights/HP_Privacy.html
[18]https://www.nasa.gov/general/accessibility/
[19]https://www.nasa.gov/privacy/
[20]https://astrophysics.gsfc.nasa.gov/
[22]https://www.nasa.gov/centers/goddard/
[23]https://science.nasa.gov/learners
[25]mailto:alfred@ncku.edu.tw
http://apod.nasa.gov/apod/ap251227.html
http://sprite.phys.ncku.edu.tw/astrolab/mirrors/apod/ap251227.html
