NGC 6188 is an emission nebula located 4,000 light-years distant in the southern constellation of Ara. This image is a stack of 15 minutes each of Ha, OIII, SII colorized respectively to RGB with 20 minutes of Luminance imaging overlayed. Processed with Pixinsight (registration, integration, wavelet transform) and colorized in Photoshop with additional gradient filtering, and noise reduction.