yep, i know that it might not be realistic but i like it better for artistic reasons (although i am not so sure about it ... wouldnt the light of the sun be "forwarded" from the other side into the unlit part of the planet side ... i am sure we learned this in school but i cant remember :-) ).

it was an exercise for me to have one atmosphere material that makes the sunshone part of the globe blueish and have another that makes the small glow contrast in the dark half. i only used the volumetric material for an additional glow layer, the other is "just" an angle-of-incidence on transparency layers.

actually all of this was a great exercise for me and i have learnt alot how to use and apply function editor stuff.

you are right about the closeup atmosphere. i also want to finetune it but i will do that once i get back in the office where i have my official version.