NGC 2998是一个位于大熊座的棒旋星系和中间螺旋星系,质量略小于银河系,距离地球1.95亿光年[5][3][6]。NGC 2998属于NGC 2998星系群。该星系群还包括NGC 3002、NGC 3005、NGC 3006、NGC 3008等星系[7][6]。
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