Can I set a halo of light so that it stays lit when the camera is near it

Is the any way I can make a halo of light not fade when the camera is near it, I want to create planets with atmosphere and the halo is meant to be the planets atmosphere, but when the camera is in the area where the light is, the light vanishes. If there is no way to fix this then is there a way to set a sphere so I can see inside it