The picture shows part of this large Vela Supernova Remnant region. The filaments structures is the result of a massive star that exploded some 11.000 to 12.000 years ago. The outer layers of the stars are still expanding to the interstellar space forming the gas structures with high energy particles which is still visible today. This remnant is the one closest to us and it is embedded in a larger and older supernova remnant known as the Gum Nebula.
The image was taken with a William Optics Zenith Star 66 working at f4.8 and a QSI 583 WS riding on a Sky Watcher NEQ6 form San Luis Argentina. Three our exposure time through LHaRGB filters