出典:Wikipedia
出典:『Wikipedia』 (2011/04/28 12:26 UTC 版)
ROSAT (short for Röntgensatellit) is a no-longer operational German X-ray satellite telescope (in German X-rays are called Röntgenstrahlen, in honour of Wilhelm Röntgen). It was launched on June 1, 1990, with a Delta II rocket from Cape Canaveral for a 5 year initial mission, and operated for over 8 years until February 12, 1999.