Source: wikibot/cygnus-loop
= Cygnus Loop
{wiki=Cygnus_Loop}
The Cygnus Loop, also known as the Veil Nebula, is a prominent supernova remnant located in the constellation Cygnus. It is part of a larger structure that was formed by the explosion of a massive star approximately 20,000 years ago, which is believed to have occurred about 5,000 to 8,000 years ago in human time.