Pickering's Triangle imaged in Ha on August 22nd 2016 from my Creedmoor site is part of the Veil supernova remnant in the NW portion near NGC6979 and NGC6974. It does not have an NGC number but is also known as Seimis 3-188. It is 1,400 light years distant in the constellation of Cygnus. The filamentary segments represent an expanding shell or shock front of the supernova explosion that took place 5,000 - 10,000 years ago that are now five times the size of the full moon.