What does Sagittarius look like in the sky?

Sagittarius is a very important constellation in astronomical observation, because the center of our Milky Way Galaxy is exactly in the direction of Sagittarius, so when observing Sagittarius, we can see that the Milky Way is passing through the west side of Sagittarius. If you use a telescope to observe the Milky Way in this direction, you will find that the stars are particularly dense, and several of the brighter stars in the constellation Sagittarius are located in this part. This area is also a treasure trove of nebulae and star clusters. Among them, the most popular ones among photographers are the M8 "Lagoon Nebula", the M17 "Omega Nebula" and the M20 "Trifid Nebula". ”. Among them, the M8-Lagoon Nebula can be seen with the naked eye. To the west of the Sagittarius star, it is a bright nebula in the Milky Way. The nebula also contains a star cluster. The Lagoon Cluster is about three times as wide as the full Moon and is about 5,200 light-years away from Earth. As for star clusters, the brightest one is the M22 star cluster, located not far to the east of the Sagittarius star L. This is the third brightest globular star cluster in the sky. It can also be seen with the naked eye under good weather. It is about the size of a full moon. Two thirds. The open star clusters include M23, M24, M25, etc., which are located on the northwest side of Sagittarius. Their bright scenes can be easily seen with binoculars.