NGC 6559 is an star forming region in the constellation of Sagittarius. It is about 5,000 light years from earth.[1] About 7 light years across, it is a dense cloud of dust that hides other stars.[1]

NGC 6559

References

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  1. 1.0 1.1 Martin A. Ratcliffe, State of the Universe 2007: New Images, Discoveries, and Events (New York; Berlin: Springer Publishing; Praxis Publishing, 2007), pp. 35–36