User:Marquinhos
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The Lagoon Nebula is a giant interstellar cloud in the constellation Sagittarius. It is classified as an emission nebula and as an H II region. Discovered by Giovanni Battista Hodierna before 1654, it is one of only two star-forming nebulae faintly visible to the naked eye from mid-northern latitudes. While appearing pink in long-exposure photographs, it typically appears gray when viewed through binoculars or telescopes due to the human eye's limited color sensitivity in low-light conditions. In the foreground is the open cluster NGC 6530. Photograph: European Southern Observatory / VLT Survey Telescope team
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