NGC6888 in Cygnus, also named as "The Crescent Nebula", has an extension of 20'x 10',and resemble the shape of a bean. It is excited from the extremely hot Wolf-Rayet star HD192163 (magnitude 7,4) which is embedded into the nebula. Visually is a very difficult object, and needs very large telescopes to be detected. With the actual dichroic filters which shows a really narrow bandpass, and with CCD sensors which are sensitive in this band, is quite easy to take nice images also from light polluted sites.

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