Astro image processing with Light Room and Photoshop

Download files into LR

Under Profile, click Remove Chromatic Aberration and Enable Profile Corrections

Increase image to 300% and use Manual sliders to reduce residual chromatic aberration

Use Noise reduction slider gently

Decrease Whites if stars over-exposed

Sync all images

Open images as layers in PS

Select all layers

Edit>Auto-align

Layers>Smart Objects>Convert to Smart Object

Layers>Smart Objects>Stack Mode>Median

Save the Stack (back into LR)

Re-open the Stack in PS

Use Curves tool to reduce light pollution and Stretch data (See photo)

Stretch the data, being careful to avoid over-exposing stars

Add saturation, vibrance, clarity, and texture to taste
(LR works well for this)