The planet is just a sphere with spherical texture map. The only problem was an image map. For appropriate results it growth to 4096x4096 pixels. Set the colors in black and white. If you find it well, duplicate the layer.
Atmosphere is a set of two spheres.
Starfield is a result of my own program, written in Delphi. Feel free to modify it. The plasma is a set of 72 cylindrical halos, placed in the circle. The only problem was to find, why some halos are just black. I am sorry for my poor English, but I hope, you have understood it.