This is a very fast sun for mobile with 60+ FPS on mid-range devices.

For Universal Render Pipeline only

It is a fully customizable star of all its variations in billions
The asset does not use post-processing that strongly affects the GPU devices. I just simulated this process with a shader.
For android settings needed:
Android 8 and higher , OpenGLES3 or Vulcan, Arm64 ,.Net standard 2.0, IL2CPP
On android 7 some troubles with particle system, if you may fix it please post me how :-)
Everything is very simple and easy to customize, colors, sizes, effects, etc.
In package two sphere mesh ~500 and 700 polygons
6 sky textures 2048 x 2048, one sun prominence texture 8192 x 3584, second 4096 x 1024.
Sun surface texture 2048 x 1024, sun noise texture 120 x 120.
I hope you will like it.