Messier 54

Wikipedia (chū-iû ê pek-kho-choân-su) beh kā lí kóng...
Messier 54

Messier 54 (M54, NGC 6715) sī chi̍t-ê chhiⁿ-thôan, tī thian-kiû ê só͘-chāi sī Sagittarius-chō.