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The Veil Nebula, 



    
        

            Gabe Shaughnessy

The Veil Nebula

Technical card


Dates:July 17, 2020

Frames:
Chroma Ha 3nm: 11x900" bin 1x1
Chroma OIII 3nm: 7x900" bin 1x1

Integration: 4.5 hours

Avg. Moon age: 26.28 days

Avg. Moon phase: 11.46%


Basic astrometry details

Astrometry.net job: 3734506


Resolution: 9576x6388

Data source: Backyard

Description

The Veil nebula is a supernova remnant in the constellation Cygnus about 1500 ly away. This composite shows the Hydrogen alpha (Ha) and doubly ionized oxygen (OIII) emission and contains NGC6992 and NGC6995 collectively known as the Network nebula on the left, and the Witch's Broom, NGC6960, which is close to the bright foreground star 52 Cygni on the right.

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. As with the Western Veil nebula, 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 its peak. For supernovae with the same intrinsic brightness, this would give a 18x increase in brightness, or around 3.2 magnitudes.

Added starless and a starless inverted mono image to illustrate the faint outer reaches of the Veil.

Comments

Author

AstroGabe
Gabe Shaughnessy
License: None (All rights reserved)
3111
Like

Revisions

  • Final
    The Veil Nebula, 



    
        

            Gabe Shaughnessy
    Original
  • The Veil Nebula, 



    
        

            Gabe Shaughnessy
    B
  • The Veil Nebula, 



    
        

            Gabe Shaughnessy
    C

B

Description: Starless version

C

Description: Starless inverted monochrome

Histogram

The Veil Nebula, 



    
        

            Gabe Shaughnessy