'Vray Sun Real 21K' grabs spatial imagery from NASA. You can change between different views and locations. Scene contains three biggest Corona maps with transparency. Corona maps are static, just rotate with surface and are see only on the edge of the sun (fallout effect) so always are visible (see 360 preview). Vray render is prety quick. Source maps are in resolution 21k (21000x10500 pixels). Recommeded minimal system configuration is 8GB RAM.
Scene contain maps: diffuse, bump, clouds, glow material, starfield (8K) for environment and lowres 'preview map' for easy manipulate with Sun and Coronas models in 3ds max.
3D models were created in '3ds max 2012' with plugin 'V-Ray 2.20.03', you will need this minimal for open scene, not include!