NGC 6357 - The Lobster Nebula (aka War and Peace Nebula) - lies about 8,000 light years away in the constellation of Scorpius.
I
love the complexity of this nebula!! I reckon most so called "boring" emission nebulae have great detail just waiting to be teased out with some NB data and determined processing. The nebula comprises a complex tapestry of gas, dark dust, stars still forming, and newly born stars. The intricate patterns are caused by complex interactions between interstellar winds, radiation pressures, magnetic fields, and gravity.
This is an LLsHaRGB exposure comprising 17.75 hours of data (L=240, Ls=120, Ha=270, R=180, G=120, B=135 minutes).
FOV is 38.8 x 25.8 arcmins at 0.59 arcsec/pixel.
Screen sized version
HERE.
Full Resolution version
HERE.