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Contains:  Veil nebula, Lace-work nebula, Filamentary nebula, NGC 6960, The star 52Cyg
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The Western Veil Nebula, 


            Gabe Shaughnessy
The Western Veil Nebula

The Western Veil Nebula

Technical card

Imaging telescope or lens:TMB Optical TMB130SS

Imaging camera:QSI 683wsg-8

Mount:Astro-Physics Mach1AP GTO CP4

Guiding telescope or lens:TMB Optical TMB130SS

Guiding camera:Starlight Xpress Ultrastar

Focal reducer:TeleVue TRF-2008 0.8x

Software:PixInsightSeqence Generator Pro

Filters:Astrodon Ha 5nmOIII 3nm

Resolution: 2400x3200

Dates:July 26, 2016

Astrodon Ha 1.25 5nm: 10x900" bin 1x1
OIII 3nm: 10x900" bin 1x1

Integration: 5.0 hours

Avg. Moon age: 21.66 days

Avg. Moon phase: 55.20%

Bortle Dark-Sky Scale: 5.00 job: 1167644

RA center: 20h 47' 20"

DEC center: +30° 35' 20"

Pixel scale: 1.518 arcsec/pixel

Orientation: 177.096 degrees

Field radius: 0.844

Data source: Backyard


The Veil nebula is a supernova remnant in the constellation Cygnus about 1500 ly away. The progenitor supernova exploded an estimated 5000-8000 years ago and the full diameter is 3 degrees, giving a size of around 50 ly. The remnant emits radio, infrared, visible light and is also a very bright source of X-rays.

This composite shows the Hydrogen alpha (Ha) and doubly ionized oxygen (OIII) emission of the western portion of the Veil nebula, also known as the Witch's Broom and is close to the bright foreground star 52 Cygni. The emission filaments are thought to be the edge-on view of the thin shell of expanding gas. The entire 3 degree field contains this gas, but it's only in this edge-on view that the shell is visible.

The supernova must've been quite a site to our ancestors. For reference, it's about 4.3x closer than the supernova that left the Crab nebula remnant, M1, in 1054 AD, which had an apparent magnitude of -6.5 at it's peak. For supernovae with the same intrinsic brightness, this would give a 18x increase in brightness, or around 3.2 magnitudes.



Gabe Shaughnessy
License: Attribution-NonCommercial Creative Commons


  • The Western Veil Nebula, 


            Gabe Shaughnessy
  • Final
    The Western Veil Nebula, 


            Gabe Shaughnessy

Sky plot

Sky plot


The Western Veil Nebula, 


            Gabe Shaughnessy