Veil Nebula Wide View through Narrowband Filters
The Veil Nebula in Cygnus is a supernova remnant with several regions of bright red and blue nebulosity popular with backyard astrophotographers. The region shown above spanning the Eastern Veil on the left through the Western Veil or Witch's Broom on the right covers a stretch of sky about six times the diameter of the moon. The bright pieces form a roughly spherical shape with a 110 light year diameter, emanating from a central explosion estimated to have occurred 8000 years ago.
I can't see this nebula at all through my small telescopes from my suburban yard. No telescope was used for this image -- rather a 200 mm SLR lens on a cooled astro-camera using two different narrowband filters, H-alpha and OIII. Narrowband imaging allows the light emitted by the ionized Hydrogen and Oxygen regions of the nebula to come through, while filtering out most of the New York skyglow.
Tech stuff: 200 mm f/4 Super Takumar lens on Starlight Xpress SX-694C camera; mounted on Sky Watcher Star Adventurer drive guided with SBIG STi guider and PHD. Astronomik OIII filter 12 X 600 second + H-alpha 8 X 600 second exposures stacked and processed with Nebulosity and PixInsight. Imaged from my yard 10 miles north of New York City as part of my exploration of ultraportable deep sky imaging systems.
Veil Nebula Wide View through Narrowband Filters
The Veil Nebula in Cygnus is a supernova remnant with several regions of bright red and blue nebulosity popular with backyard astrophotographers. The region shown above spanning the Eastern Veil on the left through the Western Veil or Witch's Broom on the right covers a stretch of sky about six times the diameter of the moon. The bright pieces form a roughly spherical shape with a 110 light year diameter, emanating from a central explosion estimated to have occurred 8000 years ago.
I can't see this nebula at all through my small telescopes from my suburban yard. No telescope was used for this image -- rather a 200 mm SLR lens on a cooled astro-camera using two different narrowband filters, H-alpha and OIII. Narrowband imaging allows the light emitted by the ionized Hydrogen and Oxygen regions of the nebula to come through, while filtering out most of the New York skyglow.
Tech stuff: 200 mm f/4 Super Takumar lens on Starlight Xpress SX-694C camera; mounted on Sky Watcher Star Adventurer drive guided with SBIG STi guider and PHD. Astronomik OIII filter 12 X 600 second + H-alpha 8 X 600 second exposures stacked and processed with Nebulosity and PixInsight. Imaged from my yard 10 miles north of New York City as part of my exploration of ultraportable deep sky imaging systems.