NGC 47造句

The faint, wide arcs or shells of NGC 474 could have been formed by a gravitational encounter with neighbor NGC 470.

NGC 4697 is beyond this frame above and to the left, but a smaller irregular galaxy NGC 4731a can be seen near the bottom in impressive detail with its own young blue star clusters.

NGC 470暗淡而巨大的弧圈或壳可能是与比邻星系NGC 470之间的引力碰撞形成的。