Usually to get the Hubble Palette in your image, it is required to shoot in monochrome with Hydrogen Alpha, OII filters. This is now as Narrowband imaging.

However, it is possible, using some nice scripts from Bill Blanshan to apply a Hubble like palette.

You can download the scripts here

https://drive.google.com/drive/folders/1dSZzimxsnAPpqTkEJO5pzt1gqSahMUyO

THis really makes your images pop with a little more life than the standard processing does as you can see in the sample images below.

Here’s the output image from this process and script compared to my usual processing of this data.