Planet Rings Aura

Hello guys I was making a planet and then I wanted to use some particle emitters for making a Aura kind of effect which can change color later.

I used particle emitter and also planet shader but I am unable to change color later as time passes.

Amia

You can change the colors on particles like this: http://unity3d.com/support/documentation/ScriptReference/ParticleAnimator-colorAnimation.html

You should be able to set the atmosphere color on that planet shader. Can we see your code?