from Sunnyvale CA 7/21/2014 Rokinon (Samyang) 85mm lens Canon EOS XSI ISO1600 10 seconds 320 subframes on GEM mosaic with the images of Eastern and Western Veil Nebulae
290:Eastern and Western Veil Nebulae 網状星雲 and Open Cluster NGC 6940 – 2014/07/26
from Sunnyvale CA 7/21/2014 Rokinon (Samyang) 85mm lens Canon EOS XSI ISO1600 10 seconds 320 subframes on GEM mosaic with the images of Eastern and Western Veil Nebulae