A strong cosmic source of x-rays, E0102 was imaged by the Chandra X-ray Observatory shortly after its launch in 1999.
E0102是个明亮的宇宙X射线源，所以钱卓拉在1999年发射升空后不久，就曾观测过它。
A strong cosmic source of x-rays, E0102 was imaged by the Chandra X-ray Observatory shortly after its launch in 1999.
E0102是个明亮的宇宙X射线源，所以钱卓拉在1999年发射升空后不久，就曾观测过它。
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