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English
[en]
The Cat's Eye was the first planetary nebula to be observed with a spectroscope by William Huggins on August 29, 1864.
Korean
[ko]
고양이 눈 성운은 분광기로 관측된 최초의 성운으로, 선구자적 분광학자 윌리엄 허긴스가 1864년 8월 29일에 관측했다.
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