Because Sagittarius is located in the south, this constellation can't be seen at all in the area north of 78 north latitude on the earth, and the complete Sagittarius can only be seen in the area south of 45 north latitude. You can see the complete Sagittarius in most parts of China.
Sagittarius has a wide range and contains many bright stars, including two second-class stars and eight third-class stars. Sagittarius is also a place where famous deep space objects gather. Besides trifid nebula, there are 14 messier objects, such as the famous lagoon nebula M8 and horseshoe nebula M 17. Trifid nebula ranks 20th in messier catalog, abbreviated as M20. It is about 4 degrees southwest of Sagittarius with bright handle tip in Nandou Six Star. Trifid nebula is 5600 light years away.