NGC 6559 is a star-forming region in the Sagittarius constellation. It is also known as the Loreta Nebula and the Chinese Dragon. NGC 6559 forms the Sagittarius Triplet along with the Trifid Nebula (M20) and the Lagoon Nebula (M8).
Image taken using the Schulman Foundation’s 24-inch telescope on Mt. Lemmon, AZ. Local telescope operation and gray scale frames by Adam Block, University of Arizona. Pure RGB image, binned 1×1, cumulative total exposure time 530 minutes (8.8 hours). Processing by JDS.
NGC 6559 also appears near the top of another image in this gallery, a wide angle view of the Triplet taken through a 106 mm. refractor.
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