a constellation in the northern hemisphere between Pegasus and Draco in the Milky Way; contains a black hole
a genus of Anatidae
造句
用作名詞(n.)
In fact, the constellation Cygnus is sometimes called the Northern Cross. 事實上，天鵝座有時也被稱為北十字星座。
Today, the resulting supernova remnant has faded and is now visible only through a small telescope directed toward the constellation of Cygnus. 如今，形成的超新星遺跡已經慢慢退去，只有通過小型望遠鏡朝天鵝座方向看去才能看到。