Cocoon Nebula HSO
This summer feature within Cygnus includes a bright emission nebula, reflection nebulae in the surrounding dust clouds, and a "tail" of dark dust (Barnard 168) running off to the west. Here I've used narrowband filters to image it through my Bortle 7 (bright suburban) sky.
Tech Stuff: Borg 55FL/ZWO ASI 533MM/Astronomik NB filter set. 75 min x 30 second unguided exposures HA/ 100 min X 30 sec Sii/ 65 min O3. Imaged over 3 nights from my yard in Westchester County, NY.
Cocoon Nebula HSO
This summer feature within Cygnus includes a bright emission nebula, reflection nebulae in the surrounding dust clouds, and a "tail" of dark dust (Barnard 168) running off to the west. Here I've used narrowband filters to image it through my Bortle 7 (bright suburban) sky.
Tech Stuff: Borg 55FL/ZWO ASI 533MM/Astronomik NB filter set. 75 min x 30 second unguided exposures HA/ 100 min X 30 sec Sii/ 65 min O3. Imaged over 3 nights from my yard in Westchester County, NY.