The Cygnus Loop is the glowing aftermath of a massive star that ended its life in a spectacular supernova explosion between 10,000 and 20,000 years ago.
Located about 2,600 light-years from Earth in the constellation Cygnus, this remnant spans nearly 150 light-years across, making it one of the largest and most striking supernova remnants visible in our skies. The entire loop is huge in the night sky—spanning about 3° across (around 6× the diameter of the full Moon).
What we witness in the Cygnus Loop are not just remnants of a violent end, but also the raw ingredients of future worlds.
These are the fading echoes of a dead star, a reminder that in the universe, endings and beginnings are always intertwined..
Roughly 12hrs Ha and 15hrs Oiii and 1.5 RBG for the stars (shot over the summer 2025).
Quintuplet Flatfield APO Scope
ZWO 2600MM Pro Camera
Skywatcher HEQ5 Mount
Location: Dublin, Ireland.