NGC 6979, also known as Fleming's Triangular Nebula, is a celestial wonder situated in the constellation of Cygnus. This enchanting celestial object is an emission nebula, an area of ionized gas illuminated by young and fiery stars. However, what makes NGC 6979 so captivating is its origin, tied to a cosmic event of extraordinary magnitude: the explosion of a supernova.The explosion of a supernova is one of the most violent and spectacular phenomena in the universe. It occurs when a massive star reaches the end of its life cycle, depletes its nuclear fuel, and collapses under its own gravity. The energy released during this collapse is so intense that the star detonates in a brilliant and devastating explosion.In the case of Fleming's Triangular Nebula, the explosion of a supernova generated a shockwave that swept away the surrounding materials, creating a cavity in interstellar space. The energy and radiation emitted during the explosion ionized the surrounding gas, causing it to shine with splendid shades of color.The consequences of a supernova explosion are profound and lasting. The shockwaves generated can compress the surrounding gas and dust, triggering the formation of new stars and regions of stellar birth. These cosmically tumultuous events give rise to phenomena like Fleming's Triangular Nebula, where the visible beauty bears witness to the dynamic processes occurring in interstellar space.The composite image of Fleming's Triangular Nebula, obtained through a mosaic of different exposures, captures the complexity of the nebula and reveals the intricate details of the ionized structures. This image allows us to explore the deep connections between supernovae, star formation, and the evolution of the universe.Fleming's Triangular Nebula, with its supernova past and its current celestial beauty, represents a unique window through which we can study the impact of stellar explosions on the cosmic landscape. The art of astrophotography enables us to capture these celestial wonders and immerse ourselves in the profound and fascinating stories that tell us about the origin and evolution of the universe that surrounds us.

Reported variable stars
During the observation, an unidentified celestial object was highlighted, analyzing various astronomical atlases, applications, and archives. Through other images in the Astrobin archive, an alteration in one of the stars present in the nebula is evident. I reported this alteration to the IAU (iau.org) on 17/08/2023.Altered Star Coordinates: RA/DEC (J2000) 20h49m04.40s / +31°51’16.8

I want to share with you, and try to indagate and understand what it's. My image is in 1624mm, if someone shoots with longer focal lengths that would be great