NGC 6523, called the Lagoon Nebula for the band of dust to the left of center of the open cluster of bright stars, which has its own number, NGC 6530. The bright knot of gas and dust in the center is called the Hourglass Nebula. Three for the price of one! And so bright that it can be seen without a telescope—look toward Sagittarius.
Image credit and copyright: Remus Chua (Celestial Portraits).