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来自维基百科,自由的百科全书
NGC 2557是巨蟹座的一个SA0型星系。该星系于1877年2月2日由法国天文学家让·玛里·爱德华·史提芬发现。其赤经为08h19m10.7s,赤纬为21°26'09"。[1]
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