"Trifid Nebula" (M20). Nebula located in Sagittarius, named for its 3 lobes, contains all 3 types of nebula, reflection, emission, and dark. Nikon D300 mounted on a Celestron EdgeHD 11" SCT with f/6.3 focal reducer. Image processed from 4 minutes sub-exposures (11 exposures). ISO800.