Veil nebula is a supernova remnant - an expanding cloud of gas resulting from the explosion/death of a massive star. This image shows only the western part of this large nebula (covers ~6 full moons) which lies at about 1500 light years in the constellation of Cygnus.

Details in Alt text.

@astrovelo wow - amazing!

@Parag The bottom left part of the nebula in this image was named “Pickering’s triangle”. It is rightfully renamed as “Fleming’s triangular wisp”. Here is the interesting story of a remarkable woman for this name change.

@Miraz I hope you liked my picture of Fleming’s triangular wisp. 😄

@Parag I did. 😁