NGC 789 是位于北天三角座的一个螺旋星系。它在哈伯序列中属于Sd。它直径约为7万光年,距离银河系约2.41亿光年。该天体于1865年8月24日由德国-丹麦天文学家海因里希·路易·达雷发现。[1]
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