a starless version of the Veil Nebula. 

 

The Veil is the visible part of the Cygnus Loop, a massive supernova remnant and radio source around 2,400 light years from Earth. The original star was likely 20x the mass of our Sun and exploded around 10,000 years ago. It has expanded to cover a sky area approximately 36x the area of the full Moon.

 

There are a lot of stars in the field of view so I used a tool called StarNet++ to remove them and reveal the gases (Hydrogen = Red and Oxygen = Green) m...

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The Horsehead and Flame nebula. by HGSAS Member Callum Wingrove in November 2020.  Callum said at the time.

"I had to include this as it’s one of my favourite areas of space to photograph and its back in the sky at the moment until February.  As soon as we get a clear sky I will be trying to image this and the adjacent Orion Nebula with my wide field scope and create a mosaic of the two.  The bright star is Alnitak, the left most star in the belt of Orion.
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