This stunning photo is of the object known as the Trifid Nebula. The nebula, also known as M20, is about 40 light years across and located in the constellation of Sagittarius, which contains many star forming regions due to being in the direction of the galactic center. The Trifid actually portrays three types of nebulae: red emission nebulae, blue reflection nebulae, and dark absorption nebulae. The emission nebula is seen in the center, with the dark nebula interspersed within it and the reflection nebula around it. As you may have guessed, this three part structure is where the Trifid gets its name.
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