“NGC 47”造句，怎麼用NGC 47造句

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.

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

NGC 470暗淡而巨大的弧圈或殼可能是與比鄰星系NGC 470之間的引力碰撞形成的。