supernovaCharles LilloJuly 31, 2019Crescent Nebula, NarrowBand Imaging, ngc6888Comment Crescent Nebula (also known as NGC 6888, Caldwell 27, Sharpless 105) A narrowband image of NGC 6888 aka the Crescent Nebula supernovaCharles LilloJuly 31, 2019Crescent Nebula, NarrowBand Imaging, ngc6888Comment