47 tucanae造句

• Caption : : located in the constellation herculues , m13 is the largest and brightest globular cluster in the northern sky , third in the whole sky , after the omega centaurus and 47 tucanae
  位于武仙座的球状星团m13 ，是北天球最大最亮的球状星团，在全天排行第三，仅次于南天球的半人马座奥米加星团，杜鹃座47 。