Blender – Physical Starlight And Atmosphere v1.6.3

Breathtaking outdoor lighting in a single click

Physical Starlight and Atmosphere is a completely volumetric procedural sky, sunlight, and atmosphere simulator for Blender. It has been actively perfected for over 10 years already and since its release has been the go-to lighting tool for many independent artists to highly skilled professionals and studios.

Create your world by tweaking these parameters:

Variable Sun size and brightness
Binary Sun (extra rotating sun)
Procedural Atmosphere (adjust atmosphere density, height color, and more)
Stars (procedural or HDRI options supported)
Basic Clouds procedurally generated (adjust scale, thickness, coverage, lighting location, and more)
Procedural ground plane with variable height

https://blendermarket.com/products/physical-starlight-and-atmosphere