A 30-minute exposure with an OIII filter shows the fine thread-like structure of the Veil Nebula, a supernova remnant in the constellation Cygnus. The narrow-band filter helps cut through the severe light pollution in the city. Sky-Watcher 100 ED 4 in f/9 refractor, Kenko NES mount, Canon 450D DSLR, 4 x 480 sec exp, IS0 1600. April 15, 2012. Photo Credit: Anthony Urbano. For more images of nebula, click here.