Prawn Nebula

Prawn Nebula, also known as IC 4628, is an emission nebula located in the Sagittarius Arm of the Milky Way, around 6,000 light-years from Earth in the constellation Scorpius.

It forms part of the tail of the "False Comet" anchored by the bright open cluster NGC 6231.

This image was created from 9 separate 10 minute exposure images. These images are called narrowband as they are captured through very efficient filters that remove all light pollution caused by street lights, buildings etc. Each filter allows light of specific wavelengths to pass. In this image, light from ionised Hydrogen, Oxygen and Sulphur gases in this deep sky object is combined to show the orange Hydrogen and Sulphur elements with the blue Oxygen gas.

Image captured and processed by Arc Fortnight using a Celestron 9.25 Edge telescope , Avalon M-Uno mount, ZWO6200MM camera cooled to -10 degrees C and Antlia 4.5 Nm filters on a clear night in Tweed Heads, Gold Coast Australia.