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Deep Field: Nebulae of Sagittarius

These three bright nebulae are often featured on telescopic tours of Sagittarius and the crowded starfields of the central Milky Way. Charles Messier cataloged two of them: M8, the large nebula just left of center, and colorful M20 on the top left. The third emission region includes NGC 6559 and is to the right of M8. All three are stellar nurseries, about five thousand light-years distant.