ROBERT GENDLER / SCIENCE PHOTO LIBRARY ROBERT GENDLER / SCIENCE PHOTO LIBRARY
NGC 6559 emission and reflection nebulae, composite image. These nebulae are part of a star-forming region that is 5000 light years from Earth, in the constellation of Sagittarius. This mosaic image combines data from a 14.5-inch RCOS telescope, a STL-11000 camera and the Digitized Sky Survey.
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