Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
2006 April 29
每日天文一图
探索宇宙! 每天发布一张有专业天文学家的简短解释和说明的反映我们迷人宇宙的不同影像或照片。
2006年04月29日
http://www.bjp.org.cn/files/2006 ... skylab_nasa_big.jpg
地球上空的天空实验室
版权：Skylab, NASA
Explanation: Skylab was an orbiting laboratory launched by a in May 1973. Skylab, pictured above, was visited three times by NASA astronauts who sometimes stayed as long as two and a half months. Many scientific tests were performed on Skylab, including astronomical observations in ultraviolet and X-ray light. Some of these observations yielded valuable information about Comet Kohoutek, our Sun and about the mysterious X-ray background - radiation that comes from all over the sky. Skylab fell back to earth on 11 July 1979.
解释:天空实验室是1973年5月发射的轨道实验室. 上图的天空实验室曾被NASA 的宇航员3次造访,他们有时会停留长达2个半月的时间.许多的科学实验都是在上面做的,包括在紫外波段和X-射线波段的观测. 有些观测还提供了许多有价值的信息,例如科胡特克彗星,我们的太阳和神秘的X-射线背景---来自宇宙的辐射.天空实验室于1979年7月11日返回地球 .[翻译:夜空 转载请注明出处:lol]
Tomorrow's picture: millennium of SN1006
[ 本帖最后由 夜空 于 2006-4-29 07:03 PM 编辑 ] | 
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