发信人: dreammh (☆梦幻☆外星人之友☆), 信区: Astronomy
标 题: 小行星2008 TC3撞击苏丹北部后的余迹 (zz)
发信站: 水木社区 (Sun Nov 9 15:18:13 2008), 站内
NASA的每日一图
http://antwrp.gsfc.nasa.gov/apod/ap081108.html
这小行星真牛 天亮之后余迹都没散... 希望下次撞地球的换成2km的小行星之后能更爽
Explanation: On October 7, the early dawn over northern Sudan revealed this twisted, high altitude trail. Captured in a video frame, the long-lasting
persistent train is from the impact of a small asteroid cataloged as 2008 TC3. That event was remarkable because it was the first time an asteroid was detected in space
before crashing into planet Earth's atmosphere. In fact, after astronomers discovered
2008 TC3, the time and location of its impact were predicted based on follow-up observations. Later, the impact predictions were confirmed by sensors, including a
Meteosat-8 image of a bright flash in the atmosphere. Astronomers are now
hoping for more reports of local ground-based observations of what must have been a
brilliant meteor streaking through
Sudan's night sky.
Additional reports could improve the chances of recovering
meteorites.