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English
[en]
3C 273 is a radio-loud quasar, and was also one of the first extragalactic X-ray sources discovered in 1970.
Korean
[ko]
3C 273은, 전파를 강하게 방사하는 항성 모양의 천체이며, 1970년에 은하계 외의 X선 근원으로서 처음으로 분류된 천체이기도 하다.
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