Swan Lace NGC 6992

The Cygnus Lace is a supernova remnant whose explosion dates back to about ten thousand years ago, constituting the "swan lace". This object is very large and fragmented. The image therefore only shows one of the remnants.

A supernova is an extremely massive star, at least more than eight solar masses, and which is already the result of a star that has collapsed on itself. Its spectacular end of life ends in a gigantic and powerful explosion that will spread heavy atomic elements, gold and uranium for example) that will be useful to the interstellar medium and to the hydrogen clouds that will thus make it possible to create stars again from these residues. This explosion is also so powerful that the shock wave will create disturbances and cause a contraction of the gas clouds and promote the creation of new stars.

The supernova explosion took place during the Neolithic period on Earth. We can therefore imagine the impact that this sudden and brilliant appearance must have had.

The image presented, called the "Great Lace" because it is the largest and brightest remnant, was made using an L-Ultimate filter in order to best highlight its composition and its tangled filaments. These are the components of the supernova ejected during the explosion which gradually moves away from the place of the cataclysm.

Equipment used:
- Skywatcher 80ed Evostar
- ZWO 533mc pro
- ZWO 120mm mini
- EQM-35 Pro
- Asiair plus
- EFW
- EAF
- OAG
- L-Ultimate Optolong filter
- Stacked with Siril and PixInsight
- Processed with PixInsight
- Finished with Lightroom