Prawn Nebula, IC 4628 (CDK17)

The Prawn Nebula, IC 4628 South of Antares, in the tail of the nebula-rich constellation Scorpius, lies emission nebula IC 4628. Nearby hot, massive stars, millions of years young, irradiate the nebula with invisible ultraviolet light, stripping electrons from atoms. The electrons eventually recombine with the atoms to produce the visible nebular glow, dominated by the  emission of hydrogen. At an estimated distance of 6,000 light-years, the region  shown is about 250 light-years across, spanning over three full moons in the sky. The image is catalogued as IC 4628  but the shape suggests to some that it looks like a prawn and is thus known as the Prawn Nebula. My version looks more like Chinese Junk. The dramatic false color image  highlights the contributions of hydrogen, sulfur, and oxygen, energized by intense ultraviolet radiation from the nearby stars, to the glow of the nebula. The image is in the Hubble palette where green in the image comes from Hydrogen gas, red comes from Sulfur  and blue comes from Oxygen.  The image was taken in New South Wales Australia using a Planewave CDK17 telescope. It consists of 60 images taken over a total of 20 hours. The raw images were aligned, stacked and stretched in MaximDL and assembled into a color image in Photoshop CC2022.