#SkyWatch #Astrophotography The #CocoonNebula aka #IC5146 is an emission nebula about 4000 light years away and about 15 light years across. It is a star formation area with hundreds of young stellar objects having been identified. It is surrounded by Barnard 168, a dark nebula that can be seen trailing off to the right in this image of 15 five-minute exposures. #StillLearning